Space Station Acronyms - Full List
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Browse Full Acronym List (Large File!)
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2FT |
two-failure tolerance |
3D |
three dimensional |
A&C |
activation and checkout |
A&COTA |
assembly and checkout technical analysis |
A&EM |
assembly and external maintenance |
A&I |
assembly and installation |
A&MI |
assembly and maintenance integration |
A&MV |
assembly and maintenance verification |
A&R |
automation and robotics |
A&S |
avionics and software |
A/G |
air-to-ground |
A/V |
audio/video |
AACS |
Attitude & Articulation Control Subsystem |
AADC |
Avionics Architecture Design Change |
AAMP |
Advanced Automation Methodology Project |
AAP |
airlock adapter plate (shuttle) |
AB |
array bending |
AC |
alternating current |
AC |
assembly complete |
AC |
AWP control |
AC&S |
attitude control and stabilization |
AC/SIA |
AWP control/Space Station initialization assembly |
AC/SIP |
AWP control/Space Station initialization panel |
ACA |
Associate Contractor Agreement |
ACA |
attitude control assembly |
ACBS |
assembly contingency baseboard signal |
ACBSP |
assembly contingency baseband signal processor |
ACC |
aft cargo carrier |
ACCS |
active contamination control system |
ACD |
advanced control devices |
ACD |
architectural control document |
ACD |
attitude control determination/development |
ACDS |
Attitude Control & Determination System |
ACE |
acceptance checkout equipment |
ACE |
attitude control electronics |
ACI |
allocated configuration identification |
ACI |
Associate Contractor Integration/Interface |
ACIS |
avionics/crew interface simulator |
ACISS |
Advisory Committee on the International Space Station |
ACLS |
automated control and landing system |
ACM |
Association of Computing Machinery |
ACM |
attitude calibration module |
ACON |
antenna controller |
ACR |
active cavity radiometer |
ACR |
actual cost report |
ACRC |
assured crew return capability |
ACRFG |
Assembly Contingency Radio Frequency group |
ACRV |
Assured Crew Return Vehicle |
ACS |
altitude control and stabilization |
ACS |
assembly contingency subsystem |
ACS |
atmospheric control and supply |
ACS |
attitude control system |
ACSE |
attitude control system electronics |
ACTORS |
Ada cognitive task organization scheme |
ACTRA |
assembly contingency transmitter receiver/amplifier |
ACTS |
Advanced Communications Technology Satellites |
ACVC |
Ada compiler validation capability |
ACWP |
actual cost of work performance |
AD |
Analog to Digital |
AD |
advanced development |
AD |
aperture door |
AD&D |
Avionics Design & Development |
AD&I |
Avionics Design and Integration |
ADA |
automatic data acquisition |
Ada |
a computer programming language |
ADCS |
attitude determination and control subsystem |
ADCU |
AC to DC converter unit |
ADD |
Architecture Description Document |
ADD |
architectural definition/design document |
ADDS |
advanced development docking system |
ADF |
Avionics Development Facility |
ADH |
advanced development hardware |
ADL |
Ada design language |
ADM |
advance development models |
ADP |
acceptance data package |
ADP |
advanced development plan/program |
ADP |
automated data processing |
ADPA |
airlock depressurization pump assembly |
ADPE |
automated data processing equipment |
ADPE/S |
automated data processing equipment and systems |
ADPG |
Atmospheric Dynamic Payload group |
ADR |
achievable data rate |
ADS |
aerospace data systems |
ADS |
ancillary data system |
ADS |
attitude determination system |
ADS |
audio subsystem |
ADSMB |
attitude determination system mounting base |
ADSS |
Aerospace Data Systems Standards |
ADVLAM |
Advanced Laminate Analysis Code |
ADVT |
ADA development environment |
AE |
assembly element |
AE |
Avionics Integrated Environment |
AEM |
Animal Enclosure Module |
AEPI |
atmospheric emissions photometric imaging |
AFA |
American Fine Arm |
AERCam |
Auonomous EVA Robotic Camera |
AFD |
aft flight deck |
AFDB |
Award Fee Determination Board |
AFDE |
aft flight deck equipment |
AFDWS |
aft flight deck workstation |
AFSIG |
ascent flight systems integration group |
AFT |
aft flight test |
AG |
application generator |
AGCS |
artificial gravity centrifuge system |
AGE |
aerospace ground equipment |
AGIT |
antenna group interface tube |
AGSD |
advanced ground segment design |
AHRS |
attitude heading reference system |
AI |
action item |
AI |
Articulation Index |
AIA |
analysis/architecture |
AIAA |
American Institute of Aeronautics and Astronautics |
AIBS |
American Institute of Biological Sciences |
AID |
altered item drawing |
AID |
automated identification device |
AID |
Avionics Integrated Development |
AIDS |
airborne integration data system |
AIDS |
automated identification development system |
AIDS |
Avionics Integrated Development Schedule |
AIM |
Automated Information Management |
AIMS |
Automated Information Management System |
AIO |
analog input/output |
AIP |
Assembly Integration Panel |
AIPD |
Avionics Installation Packaging Design |
AIPO |
Artificial Intelligence Project Office |
AIPR |
automated information processing resources |
AIR |
Action Item Report |
AIRD |
Assembly Implementation Requirements Document |
AIS |
Automated Information System |
AIS |
APCE interface set |
AIS&S |
Avionics Integrated Systems and Software |
AIT |
Analysis and Integration Team |
AIV |
Avionics Integrated Verification |
AIVRB |
Avionics Integrated Verification Review Board |
AIWG |
ADF Interface working group |
AIX |
Advanced Interactive Executive |
AJPO |
ADA Joint Program Office |
AJTIC |
alpha joint transfer interface converter |
Al |
artificial intelligence |
ALERT |
acute launch emergency restraint tip |
ALMS |
automated logistics management system |
ALO |
airlock outfitting |
ALOD |
Airlock Outfitting Design |
ALS |
advanced life support |
ALS |
alternate landing site |
alt |
altitude |
AM |
amplitude modulation |
AMD |
advanced micro devices |
AMDB |
Automated Maintenance Data Base |
AMDD |
Assembly and Maintenance Definition Document |
AME |
antenna mounted equipment |
AMIDD |
Assembly Maintenance Implementation Definition Document |
AMO |
Advance Material Order |
AMP |
amplifier |
amp |
ampere |
AMR |
advanced microwave radiometer |
AMVP |
Assembly and Maintenance Verification Plan |
ANSI |
American National Standards Institute |
AO |
airlock outfitting |
AO |
atomic oxygen |
AO |
Assembly Order |
AOA |
Assembly Operations Assessment |
AODC |
age of data, clock |
AODE |
age of data ephemerals |
AOE |
area of emphasis |
AOEA |
Assembly Operations and Engineering Assessment |
AOS |
acquisition of signal |
AP |
application processor |
AP |
attached payload |
Ap |
Geomagnetic Activity Index |
AP&AE |
attached payloads and associated equipment |
APA |
Allowance for Program Adjustment |
APAE |
attached payload accommodations equipment |
APAS |
Androgynous Peripheral Attachment System |
APC |
all-purpose carrier |
APC |
autonomous payload controller |
APCE |
automated product/program control environment |
APCU |
assembly power converter unit |
APD |
astronaut positioning device |
APDS |
Androgynous Peripheral Docking System |
APID |
application process identification |
APID |
Application Program Interface Division/Definition |
APL |
approved parts list |
APM |
astronaut positioning mechanism |
APM |
attached pressurized module |
APP |
attached payload pallet |
APPR |
Avionics Project Planning Review |
APR |
assembly planning review |
APS |
astronaut positioning system |
APS |
Automated Payload Switch |
APSE |
ADA programming support environment |
APT |
advanced propulsion test |
APT |
automatic picture test/transmission |
APU |
audio/auxiliary power unit |
APU |
auxiliary propulsion/processing unit |
AR |
Acceptance Review |
AR |
atmospheric revitalization |
Ar |
argon |
AR&D |
Automated Rendezvous and Docking |
ARA |
attitude reference assembly |
ARC |
Ames Research Center |
ARCA |
attached resupply carrier |
ARCU |
American to Russian Converter Unit |
ARIS |
Active Rack Isolation System |
ARMS |
Automated Requirements Management System |
ARO |
after receipt of order |
ARQ |
automatic repeat queueing |
ARS |
air revitalization system |
ART |
advanced reasoning tool |
ARTA |
advanced radiator test article |
ARTE |
ADA runtime environment |
ARTEID |
ARTE interface definition |
ARTEMIS |
Automated Reporting, Tracking, and Evaluation Management Information |
S |
|
ARTS |
automated requirements traceability system |
ARTS |
Advanced RID Tracking System |
AS |
aft shroud |
ASA |
Auxilliary Solar Array |
ASAD |
alpha solar array drive |
ASAP |
Aerospace Safety Advisory Panel |
ASC |
altitude stabilization and control |
ASCAN |
Astronaut Candidate |
ASCG |
automatic solution crystal growth |
ASCII |
American Standard Code for Information Interchange |
ASCR |
assured safe crew return |
ASD |
Avionics Systems Design |
ASE |
airborne support environment |
ASE&I |
Avionics Systems Engineering and Integration |
ASEB |
Aeronautics & Space Engineering Board |
ASEM |
assembly of station by EVA methods |
ASF |
assembly support framework |
ASI |
Agencia Spatiale Italiano |
ASIC |
application-specific integrated circuit |
ASME |
American Society of Mechanical Engineers |
ASNT |
American Society for Nondestructive Testing |
ASO |
Advanced Solar Observatory |
ASRA |
assembly sequence/resource allocation |
ASRS |
automated support requirements system |
ASRS |
automated software reporting system |
assy |
assembly |
AST |
American Segment Trainer |
ASTP |
Advanced Systems Technology Program |
ASTP |
Apollo Soyuz Test Program |
AT |
acceptance test |
AT |
autonomous transporter |
ATA |
ammonia tank assembly |
ATA |
atmospheres, absolute |
ATAC |
Advanced Technology Advisory Committee |
ATB |
Acceptance/Assembly Test Building |
ATB |
antenna test bed |
ATCS |
Active Thermal Control System/Subsystem |
ATD |
astronaut translation device |
ATDAC |
acoustical theory for design of aircraft cabins |
ATE |
airborne/automated test equipment |
ATF |
Autonomous Thruster Facilities |
ATHENA |
advanced thermal hydraulic energy network analyzer |
ATM |
Apollo telescope mount |
ATMM |
active thermal math models |
ATMOS |
atmospheric trace modules observed by spectroscopy |
ATMOS |
automatic testing multiple operating system |
ATO |
abort-to-orbit |
ATP |
acceptance test procedure |
ATP |
authority to proceed |
ATS |
active thermal system |
ATS |
attitude transfer system |
ATS |
assembly truss structure |
ATSL |
ADA Technology Support Laboratory |
ATT |
ADA transition test |
ATT |
assembly task team |
ATU |
audio terminal unit |
ATV |
Automated Transfer Vehicle |
AU |
astronomical unit |
AV |
Avionics Verification |
BAE |
Boeing Aerospace Engineering |
BAFO |
best and final offer |
BAG |
Baseline Advisory Group |
BB |
breadboard |
BBC |
Bolt Bus Controller |
BC |
bus controller |
BCD |
baseline control/configuration document |
BCD |
Budget Change Document |
BCDU |
Battery Charge/Discharge Unit |
BCE |
beamsplitter control electronics |
BCOP |
Bilateral Crew Operations Panel |
BCR |
battery charge regulator |
BCR |
Budget Change Report |
BCU |
bus controller unit |
BCWP |
budgeted cost for work performed |
BCWS |
budgeted cost for work scheduled |
BD |
bypass diode |
BDCF |
baseline data collection facility |
BDEA |
bilateral data exchange agreements |
BDR |
battery discharge regulator |
BER |
bit error rate |
BGA |
beta gimbal assembly |
BIA |
bus interface adapter |
BID |
block interconnect diagrams |
BIF |
bus interface function |
BlT |
built-in-test |
BITE |
built-in test equipment |
BIU |
buffer/bus interface unit |
BIU |
built-in unit |
BIVP |
Bilateral Integration and Verification Plan |
BLDG |
building |
BLIM |
berthing latch interface mechanism |
BM |
business management |
BMA |
bolt motor actuator |
BMAC |
biomedical monitoring and countermeasures |
BMAD |
Berthing Mechanisms Advanced Development |
BME |
biomedical engineer |
BMMD |
body mass measurement device |
BMO |
Business Management Office |
BMR |
body mounted radiator |
BMR |
Business Management Representative |
BN |
ballistic number (W/CDA) |
BNIU |
bus network interface unit |
BOC |
basic operational capability |
BOE |
basis of estimate |
BOL |
beginning of life |
BOS |
bright object sensor |
BP |
biological processing |
BPFM |
Bright Field/Phase Contrast/Fluorescence Microscope |
BPM |
biological production module |
BPR |
Bilateral Program Review |
BPRV |
back pressure regulating valve |
bps |
bits per second |
BPSK |
Binary phase shift keying |
BR |
bit rate |
BSAD |
beta solar array drive |
BSCCM |
Battery Signal Conditioning and Control Module |
BSP |
baseband signal processor |
BSP-T |
baseband signal processor-TDRSS |
BSP-V |
baseband signal processor-video |
BSR |
biweekly schedules reviews |
BTPS |
body temperature and pressure saturated |
BTF |
Biotechnology Facility |
C/V |
cooperative vehicle |
c2 |
command and control |
C3 |
command, control, and communications |
C3I |
command, control, communications, and intelligence |
CA |
control architecture |
CA |
cost account |
CA |
customer accommodations |
CAA |
computer-aided analysis |
CACTIS |
Change and Commitment Tracking Information System |
CAD |
computer-aided design |
CADD |
computer-aided design and drafting |
CADU |
channel access data unit |
CAE |
computer-aided engineering |
CAG |
Commercial Advocacy Group |
CAGE |
Commercial and Government Entity |
CAI |
computer-aided instruction |
CAIS |
Computer-Aided Instructional System |
CAIT |
computer-aided instructional trainers |
CAL |
Common Airlock |
CAL |
computer-aided Logistics |
CALS |
computer-aided acquisition and logistics support |
CAM |
centrifuge accommodation module |
CAM |
computer-aided manufacturing |
CAM |
Cost Account Manager |
CAP |
Computer-Aided Planning |
CAP |
Cost Account Plan |
CAP |
Crew Activity Plan |
CAPP |
computer-aided project planning |
CAPS |
Computer Assisted Publication Service |
CAPS |
Crew Activity Planning System |
CAR |
Certification Approval Report/Request |
CAS |
calibrated ancillary system |
CAS |
Common Attach System |
CAS |
cost accounting standard |
CASA |
computer-aided systems analysis |
CASB |
Cost Accounting Standards Board |
CASE |
checkout and servicing equipment |
CASE |
crew accommodations and support equipment |
CASE |
Computer-Aided Software/Systems Engineering |
CAT |
computer-aided test |
CAT |
computerized axial tomography |
CATCS |
Central Active Thermal Control System |
CB |
center of buoyancy |
CB |
Control Board |
CB |
Control Bus |
CBD |
common data base |
CBDS |
circuit board design system |
CBM |
common berthing mechanism |
CBR |
Configuration Budget Review |
CBR |
contract baseline rephasing |
CCA |
cause-consequence analysis |
CCA |
clinical chemistry analyzer |
CCA |
Contract Change Agreement/Authorization |
CCAA |
Common Cabin Air Assembly |
CCAFS |
Cape Canaveral Air Force Station |
CCAS |
Cryogenic Carrier Attach System |
CCB |
Change/Configuration Control Board |
CCBD |
Configuration Control Board Directive |
CCC |
Consolidated Control Center |
CCC |
Control Center Complex |
CCCN |
customer coordination center node |
CCD |
charged coupled device |
CCDS |
Centers for the Commercial Development of Space |
CCF |
Consolidated Communications Facilities |
CCFCD |
Command and Control Functional Control Document |
CCL |
Cyber Control Language |
CCM |
Composite Change Memo |
CCM |
crew/cargo module |
CCMS |
Command Control and Monitoring System |
CCN |
contract change notice |
CCN |
customer coordination node |
CCO |
contract change order |
CCP |
Configuration Control Panel |
CCP |
Contamination Control Plan |
CCP |
Contract Change Proposal |
CCR |
Configuration Control Review |
CCR |
contract change request |
CCS |
communication and control system |
CCS |
contamination control system |
CCSDS |
Consultive/Consultative Committee for Space Data Systems |
CCTV |
closed circuit television |
CCW |
channel command word |
CCW |
command/control workstation |
CCWS |
command/control workstation |
CCZ |
command and control zone |
CD |
contract direction |
CDD |
Common Data Dictionary |
CDDT |
Common Display Development Team |
CDG |
Concept Development Group |
CDM |
Contract Data Management |
CDM |
Corona Diagnostic Mission |
CDMA |
code division multiple access |
CDMO |
Configuration and Data Management Office |
CDMO |
Contract Data Management Office |
CDO |
Commercial Development Office |
CDOS |
customer data and operations system |
CDR |
commander |
CDR |
Contract Data Requirements |
CDR |
Critical Design Review |
CDRA |
carbon dioxide removal assembly |
CDRL |
Contract Data Requirements List |
CDS |
core data services |
CDT |
customer documentation tree |
CDU |
component development unit |
CE |
camera electronics |
CE |
cargo element |
CE |
concurrent engineering |
CE |
conducted emission |
CE |
current estimate |
CE&IS |
combined elements and integrated system |
CEA |
control electronic assembly |
CEA |
Customer Expectation Agreement |
CEB |
Change Evaluation Board |
CEDRID |
Cargo Element Design Requirement Input Document |
CEI |
contract end item |
CEIS |
combined elements and integrated systems |
CELSS |
closed environmental life support system |
CEMS |
crew and equipment mobility system |
CEO |
Configuration Engineering Office |
CER |
cost estimating relationship |
CERS |
crew emergency rescue system |
CERS |
crew equipment retrieval system |
CERT |
certification |
CERV |
crew emergency return vehicle |
CETA |
crew and equipment translation assembly |
CETF |
Critical Evaluation Task Force |
CETTR |
crew and equipment translation techniques and routing |
CEV |
combined elements verification |
CEV |
common element verification |
CEVT |
combined element verification and testing/training |
CEWG |
Crew Exchange and Training Working Group |
CF |
Centrifuge Facility |
CF |
completion form |
CFC |
chlorinated fluorocarbon |
CFDB |
crew functions data base |
CFE |
contractor-furnished equipment |
CFM |
candle flames in microgravity |
cfm |
cubic feet per minute |
CFP |
conceptual flight profile |
CFR |
Code of Federal Regulations |
CFS |
cryogenic fluid storage |
CFT |
crew factors |
CFU |
colony forming unit |
CG |
center of gravity |
CGBA |
Commercial Generic Bioprocessing Apparatus |
CGM |
Computer Graphics Metafile |
CGS |
Columbus Ground System |
CGSP |
crystal growth and solidification processes |
CGTG |
Crystal Growth Technology Group |
CHAMPS |
characteristics of hardware assemblies & mission-build planning system |
CHeCS |
Crew Health Care Systems |
CHIA |
Cargo Handling Interface Adapter |
CHL |
Certified Hardware List |
CHRS |
centralized heat removal systems |
CHSF |
Cargo Hazardous Servicing Facility |
CHSL |
certified hardware/software list |
CHX |
cabin heat exchanger |
CHX |
condensing heat exchanger |
CI |
change integrator |
CI |
configuration/contract item |
CI |
customer integration |
CICD |
Contractor Interface Control Document |
CID |
critical item development |
CIDSC |
Contractor In-House Data Support Capability |
CIE |
Commission Eclieree |
CIE |
computer-integrated engineering |
CIFO |
Catalog of Interface Features and Options |
CIL |
Critical Items List |
CILS |
crew-in-the-loop simulator |
CIN |
Center Information Network |
CIN |
Computer Information Network |
CIO |
Customer Integration Office |
CIO |
Center Information Officer |
CIP |
Customer Integration Panel |
CIR |
Cargo Integration Review |
CIS |
communication interface system |
CIS |
customer information system |
CIS |
change impact summary |
CITE |
cargo integration test equipment |
CIVL |
Concept Integration and Verification Laboratory |
CL |
crewlock |
CL |
capture latch |
CLA |
coupled loads analysis |
CLAN |
Core Local Area Network |
CLASS |
communications link analysis and simulation system |
CLASS |
II Comprehensive LSAR automated Support System II |
CLDF |
Clear Lake Development Facility (now Sonny Carter Training Facility) |
CLI |
command line interpreter |
CLIP |
Crew Loads Instrumented Panel |
CMDS |
Configuration Management Data System |
CMG |
control moment gyro |
CMILP |
consolidated maintenance, inventory, and logistics planning |
CMIP |
Common Management Information Protocols |
CMIS |
Common/Configuration Management Information System |
CMO |
Configuration/Contract Management Office |
CMOS |
complementary metal oxide semiconductor |
CMP |
Configuration Management Plan |
CMP |
Command Monitor Panel |
CMPL |
Commercial Materials Processing Lab |
CMRS |
CHeCS Medical Restraint System |
CMRS |
Crew Medical Restraint System |
CMS |
control and monitor subsystem |
CMSP |
Configuration Management Screening Panel |
CMT |
configuration management tool |
CMT |
crew maintenance time |
CNES |
The French Space Agency |
CNS |
computer network system |
CNTRL |
central. control |
CO |
carbon monoxide |
CO |
Contracting Officer |
CO2 |
carbon dioxide |
COAS |
coarse/crew optical alignment sight |
COB |
cargo onboard |
COCOMO |
cost constructive model |
COD |
Center Operations Directorate |
CoF |
construction of facility |
COF |
Columbus Operating Facility |
CoFR |
certification of flight readiness |
COL |
Contracting Officer Letter |
COM |
communications |
COMBO |
computation of miss between orbits |
COMET |
Commercial Experiment Transporter |
COMM |
commercial mission |
COMM |
communications |
COMPASS |
computer-aided scheduling system |
COMSAT |
Communications Satellite |
COMSEC |
Communications Security |
CONLAS |
controls analysis simulation |
CONT |
container |
CONT |
contingency |
CONTAM |
contamination |
COP |
co-orbiting platform |
COR |
Communications Outage Recorder |
COS |
Corporation of Open Systems |
COSM |
checkout, services, and maintenance (airlock equipment) |
COSMIC |
Computer Software Management and Information Center |
COSMIC |
coherent optical system of modular imaging collectors |
COSS |
co-orbit support systems |
COTR |
Contracting Officer's Technical Representative |
COTS |
commercial off-the-shelf |
COU |
Concept of Operations and Utilization |
COUP |
Consolidated Operations and Utilization Plan |
CP |
center of pressure |
CP |
commercially pure |
CP |
communications processor |
CP |
containerless processing |
CPAF |
cost plus award fee (type of contract) |
CPC |
Central Post Computer |
CPCG |
Commercial Protein Crystal Growth |
CPDS |
charged particle directional spectrometer |
CPDS |
Computer Program Development Specification |
CPFF |
cost plus fixed fee |
CPI |
Cost Performance Index |
CPM |
computer program module |
CPM |
critical path method |
CPMO |
Central Printing Management Office |
CPN |
critical path network |
cps |
characters per second |
CPS |
coarse pointing system |
cps |
cycles per second |
CPSR |
Contractor Purchasing System Review |
CPU |
central processing unit |
CR |
change request |
CR |
Configuration Review |
CR |
Cosmonaut Researcher |
CR&D |
Contract Research and Development |
CR/DR |
Change Request/Discrepancy Report |
CRAD |
Contract Research and Development |
CRDB |
Crew Requirements Data Base |
CRDS |
Customer Requirements Data Set |
CRI |
Certification Requirements Index |
CRIDR |
Contract Requirement/Data Requirement |
CRM |
chemical release module |
CRP |
Cost Reduction Proposal |
CRS |
change request sheet |
CRT |
cathode ray tube |
CRU |
catalytic research unit |
CRY |
cryogenics |
CRYT |
cryogen tank |
CS |
conducted susceptibility |
CS |
control segment |
CS |
crew systems |
CS-ES |
conceptual schema to external schema |
CS-IS |
conceptual schema to internal schema |
CSA |
Canadian Space Agency |
CSA |
computer systems architecture |
CSA-CP |
Compound Specific Analyzer-Combustion Products |
CSA-H |
Compound Specific Analyzer-Hydrazines |
CSC |
computer software component/configuration |
CSCI |
computer software/system configuration item |
CSD |
Common Schedule Database |
CSD |
contract start date |
CSD |
control system development |
CSDI |
Contract Status Data Input |
CSE |
Chief Systems Engineer |
CSEV |
combined systems and elements verification |
CSF |
Customer Servicing Facility |
CSI |
control servo input |
CSR |
Certification Status Report |
CSR |
customer support room |
CSS |
crew support station |
CST |
Competitively Sensitive Technology |
CSU |
Computer Software Unit |
CSW |
Centralized Software |
CTB |
central thermal bus |
CTE |
commercial test equipment |
CTL |
control |
CTM |
contract technical manager |
CTMS |
commercial teleoperator maneuvering system |
CTR |
contract technical representative |
CTSD |
Crew and Thermal Systems Division |
CTSIM |
Communications & Tracking simulator |
CTT |
crew transfer tunnel |
CTV |
Crew Transfer Vehicle |
CTVC |
closed loop television camera |
CU |
customer utilization |
Cu-FO |
copper and fiber optic |
CUA |
carrier utilization agreement |
CUI |
common user interface/item |
CUI |
customer user interface |
CUP |
Consolidated Utilization Plan |
CV |
cost variance |
CVCM |
collected volatile condensible materials |
CVD |
chemical vapor deposition |
CVDT |
Current Value Data Table |
CVIU |
common video interface units |
CVT |
Current Value Table |
CWBS |
Contract Work Breakdown Structure |
CWG |
Commonality working group |
CWR |
Collapsible Water Reservoir |
CWS |
caution and warning system |
CWSIT |
Caution and Warning System Integration Team |
CY |
calendar year |
CZE |
capillary zone electrophoresis |
D&B |
docking and berthing |
D&C |
displays and controls |
dB |
decibel |
DBA |
data base administrator |
DBM |
data base management |
DBME |
data base management element |
DBMS |
data base management system |
DBN |
Data Bus Network |
DBS |
direct broadcast sounder/satellite |
DC |
direct current |
DC |
docking compartment |
DCA |
document content architecture |
DCAA |
Defense Contract Audit Agency |
DCAM |
Dialysis Crystallization Apparatus for Microgravity |
DCCAS |
Dry Cargo Carrier Attach System |
DCE |
data communications equipment |
DCE |
dual cycle ergometer |
DCLS |
data collection and location system |
DCMC |
Defense Contract Management Command |
DCN |
document change notice |
DCR |
Design Certification Review |
DCS |
decompression sickness |
DCS |
Digital Communications Subsystem |
DIPEC |
Defense Industrial Plan Equipment Center |
DISU |
dual input switching unit |
DIT |
Development Integration Test |
DIT |
Dynamic Integrated Test |
DITFAC |
Development, Integration & Test Facility |
DIU |
data interface unit |
DKC |
Design Knowledge Capture |
DKSS |
design knowledge support system |
DKSSEC |
design knowledge support system electronic catalog |
DL |
data discrepancy list |
DLI |
Defense Language Institute |
DLA |
drive lock assembly |
DLSC |
Defense Logistics Service Center |
DM |
Dialog manager |
DM |
docking module |
DM&P |
Data Management and Processing |
DMA |
direct memory access |
DMA |
Digraph Matrix Analysis |
DMAP |
direct matrix absorption program |
DMATE |
Delta MDM application test equipment |
DMCS |
data management and control system |
DMS |
Data Management System |
DMS |
data management simulator |
DMS-R |
Data Management System - Russian |
DMSADA |
Data Management System automatic data acquisition |
DMST |
Development and Segment Team |
DMT |
Decreed Moscow Time |
DOC |
document |
DOC |
Discipline Operations Center |
DoD |
Department of Defense |
DoE |
Department of Energy |
DOF |
degree of freedom |
DOF |
direction of flight |
DOMSAT |
Domestic Communications Satellite (system) |
DOP |
Doppler |
DOR |
Director of Operations in Russia [NASA representative at Star City] |
DOR |
daily outage report |
DoS |
Department of State |
DOS |
detailed operations scenario |
DOS |
Disk Operating System |
DOS |
distributed operating system |
DP |
data package/processing |
DPA |
degration performance analysis |
DPA |
delegation of Procurement authority |
DPA |
destructive physical analysis |
DPD |
data procurement department/document |
DPD |
Data Project Description |
DPRO |
Defense Plant Representative Office |
DPS |
Data Processing Subsystem |
DPS |
Data Processing System |
DPSD |
Data Processing Systems Division |
DR |
data requirement |
DR |
design review |
DR |
discrepancy report |
DRA |
Design Requirements Agreement |
DRA |
design review agreement |
DRAM |
dynamic random access memory |
DRCC |
document release and change coordination |
DRCL |
design requirements checklist |
DRD |
data requirement description/document |
DREQ |
design requirement |
DRIS |
Diagnostic Radiologic Imaging System |
DRL |
data requirements list |
DRLI |
Data Requirements List Items |
DRM |
Design Reference Mission |
DRO |
dielectric resonance oscillator |
DRR |
Design Requirements Review |
DRS |
Dexterous Robotics System |
DRTS |
Data Relay Tracking Satellite |
DRWG |
Data Reconfiguration Working Group |
DS |
data sheets |
DS&R |
data storage and retrieval |
DS/FE |
distributed system and flight element |
DSA |
data systems architecture |
DSAR |
data storage and retrieval |
DSCG |
directional solidification crystal growth |
DSH |
development support hardware |
DSM |
Docking and Stowage Module |
DSMC |
Defense Systems Management College |
DSMT |
disturbance simulation management tool |
DSN |
Deep-Space Network |
DSO |
Detailed Science/Supplementary Objective |
DSR |
Design Status Review |
DSRS |
Data Storage and Retrieval System |
DSS |
data/decision support system |
DSS |
Data System Services |
DSSD |
Data Structure and Systems Development |
DSSIP |
data systems and software integration panel |
DSTP |
Detailed System Test Procedure |
DT&E |
Development Test and Evaluation |
DTA |
dedicated/development test article |
DTC |
design-to-cost |
DTE |
data terminal equipment |
DTF |
Development Test Facility |
DTL |
detailed time line |
DTLCC |
design to life-cycle cost |
DTO |
detailed/development test objective |
DU |
development unit |
DVCS |
data/voice communications system |
DVIS |
Digital Voice Intercom System |
DVR |
Detailed Verification Requirement |
DVTM |
design verification test model |
e |
electron |
E&I |
Engineering and Integration |
E&PD |
Engineering and Product Definition |
E(r) |
Earth radius |
e.d.t. |
Eastem Daylight Time |
E/E |
electrical/electronics |
E/I |
end item |
E/W |
East/West |
EA |
Integrated Electronics/Equipment Assembly |
EAC |
engineering analysis capability |
EAC |
estimate at completion |
EAF |
engineering analysis function |
EAMIP |
EVA Assembly & Maintenance Integration Plan |
EAR |
Engineering Analysis Report |
EASE |
electrical automatic support equipment |
EBCD |
extended binary coded decimal |
EC |
electrolysis cell |
EC |
exercise countermeasure |
ECAD |
electronic computer-aided design |
ECC |
Engineering Change Control |
ECD |
element control/configuration document |
ECF |
Exercise Countermeasures Facility |
ECFWS |
Exercise Counter Measures Facility Workstation |
ECG |
electrocardiogram |
ECG |
electroepitaxial crystal growth |
ECIS |
environmental control & life support |
ECLSS |
Environmental Control and Life Support System |
ECN |
engineering change notice |
ECO |
engineering change order |
ECP |
engineering change proposal |
ECS |
Environment Control System |
ECS |
Energy Conversion Subsystem |
ECU |
electronics/environmental control unit |
ECWS |
element control workstation |
ED |
electrodynamics |
ED |
electronics lock deck |
EDAC |
error detection and correction |
EDC |
Engineering Design Council |
EDCAS |
Equivalent Designers Cost Analysis System |
EDCO |
extended duration crew operations |
EDDS |
engineering documentation/drawing data system |
EDF |
Engineering Data Function |
EDF |
electronic/engineering design/development fixture |
EDFE |
EVA Demonstration Flight Experiment |
EDIP |
Element Design Integration Panel |
EDK |
Electric Dynamic Karathermometer |
EDL |
Engineering Data Library |
EDL |
Engineering Drawing List |
EDLS |
Engineering Data/Drawing Library System |
EDLS |
Enhanced Dynamic Load Sensor |
EDM |
Electrical Discharge Machining |
EDMU |
Engineering development mockups |
EDO |
extended duration Orbiter |
EDP |
Electronic/Embedded Data Processing/Processor |
EDRM |
Engineering Design/Drafting Reference/Requirements Manual |
EDRS |
European Data Relay Satellite |
EDU |
engineering development unit |
EEATCS |
Early External Active Thermal Control System |
EECOM |
electrical, environmental, and communications |
EECOMS |
Electrical, Environmental Consumables, and Mechanical Systems |
EEE |
electrical, electronic, and electromechanical |
EEG |
electroencephalograph |
EEPROM |
Electrically Erasable Programmable Read Only Memory |
EESS |
End-to-End Software Simulator |
EETCS |
Early External Thermal Control System |
EEU |
extravehicular excursion unit |
EF |
Exposed Facility |
EGRET |
Energetic Gamma Ray Experiment Telescope |
EGSE |
electrical ground support equipment |
EH |
Equivalent Hertz |
EHD |
engineering hardware description |
EHF |
extremely high frequency |
EHS |
Enhanced HOSC system |
EHS |
Environmental Health System/Subsystem |
EI |
external integration |
EIA |
Electronic (Electrical) Industry Association |
EIP |
element integration panel |
EIR |
element integration review |
EIRP |
Effective Isotropically Radiated Power |
EIS |
End Item Specification |
EISC |
EVAS Internal Stowage Compartments |
EKG |
electrocardiogram |
EL |
east longitude |
EL |
equipment lock |
EL |
exposure limits |
ELF |
extremely low frequencies |
ELIN |
exhibit line item number |
ELM |
experiment logistics module |
ELM-ES |
Experiment Logistics Module-Exposed Section |
ELM--PS |
Experiment Logistics Module-Pressurized Section |
ELS |
emergency landing site |
ELT |
emergency locator transmitter |
ELV |
expendable launch vehicle |
EM |
engineering model |
EM |
energy module |
EM |
electromagnetic |
EM |
environmental monitor |
EMADS |
Emergency Malfunction and Display System |
EMC |
electromagnetic compatibility |
EMCC |
eight man crew capability |
EMCFA |
Electromagnetic Compatibility Frequency Analysis |
EME |
electromagnetic effects |
EMI |
electromagnetic interface |
EMI |
electromagnetic interference |
EMP |
enhanced multiplexer/demultiplexer pallet |
EMR |
electromagnetic radiation |
EMS |
Engineering Master Schedule |
EMS |
Engineering Master Schedule/Services |
EMSF |
Extemal Maintenance and Servicing Facility |
EMST |
External Maintenance Solution Team |
EMTC |
early man-tended capability |
EMTT |
Etemal Maintenance Task Team |
EMU |
extravehicular maneuvering/mobility unit |
EO |
Earth orbit |
EO |
electro-optical |
EO |
electronics lock overhead |
EO |
engineering order |
EO |
executive order |
EOC |
End of Contract |
EOIM |
Environmental Oxygen Interaction with Materials |
EOL |
end of life |
EOM |
end of mission |
EOMA |
Element OMA |
EOS |
Earth Observation System |
EOS |
Electrophoresis Operations in Space |
EP |
electrical power |
EP |
equivalent personnel |
EP's |
equivalent persons |
EPA |
Environmental Protection Agency |
EPCE |
electrical power consuming equipment |
EPDB |
Electrical Power data base |
EPDCS |
Electrical Power Distribution and Control System |
EPDS |
Electrical Power Distribution System |
EPDS |
European Data Relay Satellite |
EPIC |
engineering planning, integration, and coordination |
EPIRB |
Emergency Position-Indicating Radio Beacon |
EPL |
Electronic, Electrical, and Electromechanical Parts List |
EPIMS |
EEE Parts Information Management System |
EPS |
Electrical Power System |
EPS |
Engineering Purchase Specification |
EPWG |
Electrical Power working group |
EQID |
Equivalent ID (number) |
ER |
Environmental Rights (OMS term) |
ER |
engineering release |
ERA |
Exobiology and Radiation Assembly |
ERA |
European Robotic Arm |
ERB |
Engineering Review Board |
ERBE |
Earth Radiation Budget Experiment |
ERCA |
Electrochemically Regenerable CO Absorber |
ERD |
Entity Relationship Diagram |
ERM |
Entity Relationship Model |
ERNO |
European Research National Organization |
ERODB |
Environmental Run Time Operating data base |
ERVS |
Emergency Routine Verification Schedule |
ES |
equipment section |
ES |
EVA support |
ES |
expert system |
ESA |
European Space Agency |
ESC |
electronic still camera |
ESC |
Engineering Support Center |
ESD |
electrostatic discharge |
ESE |
EVA support equipment |
ESE&T |
EVA support equipment and tools |
ESF |
Engineering Support Facility |
ESH |
equivalent sun hours |
ESIT |
Electrical System Integrated Test |
ESM |
Experiment Support Module |
ESMC |
Eastern Space and Missile Center |
ESMR |
electrically scanned microwave radiometer |
ESPACS |
EMIJ Signal Processing and Communications Set |
ESR |
Earth Science Research |
ESS |
electronic security system |
ESS |
emergency separation system |
ESS |
energy storage subsystem |
ESS |
environmental stress screening |
ESS |
experiment support system |
ESSMDM |
enhanced Space Station multiplexer/demultiplexer |
EST |
eastern standard time |
ESTEC |
European Space Technology Center |
ESTL |
Electronic System Test Laboratory |
ET |
effective temperature |
ET |
external tank |
ETA |
engineering test article |
ETC |
end-to-end test capability |
ETC |
estimate to completion |
ETE |
EVA translation evaluation |
ETED |
external thermal environment data |
ETEDB |
External Thermal Environment data base |
ETI |
elapse time indicator |
ETP |
Equipment Test Plan |
ETR |
Eastern Test Range |
ETRO |
Estimated Time of Return to Operation |
ETS |
Engineering Technical/Test System |
ETU |
Engineering test unit |
eV |
electron volts |
EV-CPDS |
Extravehicular/External Charged Particle Directional Spectrometer |
EVA |
extravehicular activity |
EVAR |
EVA retriever |
EVARDS |
EVA/Robotics Design Standards |
EVAS |
extravehicular activity system |
EVC |
extravehicular communication |
EVR |
extravehicular robotics |
EVS |
equipment visibility system |
EW |
extreme ultraviolet |
EWAC |
Emergency Warning and Caution |
EXP |
Explorer Mission |
EXPRESS |
expediting the process of experiments to the Space Station |
F |
flight |
F |
forward |
F |
Fahrenheit |
F-MPAC |
fixed multipurpose application console |
F/W |
firmware |
FAB |
flight assignment baseline |
FABRS |
Fabrication Reporting System |
FAC |
facility |
FACI |
First Article Configuration Inspection |
FACTS |
FMEA/CIL tracking system |
FAM |
functional area manager |
FAO |
Flight Activity Officer |
FAP |
Flight Activity Plan |
FAR |
Federal Acquisition Regulation |
FAST |
flexible Ada simulation tool |
FAST |
folding articulated square truss |
FAX |
facsimile transmission |
FBC |
full body cleansing |
FBM |
fleet ballistic missile |
FBT |
Feedback Technology |
FC |
flight control |
FC |
fuel cell |
FCA |
flow control assembly |
FCA |
Functional Configuration Audit |
FCA |
Funding Constraint Assessment |
FCD |
functional control document |
FCF |
Fluids and Combustion Facility |
FCEF |
Flight Crew Equipment Facility (at KSC) |
FCI |
Flight Crew Integration |
FCIR |
Flight Crew Integration Requirements |
FCM |
future capability mission |
FCOD |
Flight Crew Operations Directorate |
FCOM |
Facilities Capital Cost of Money |
FCP |
firm cost proposal |
FCP |
fluid and chemical processing |
FCP |
Fracture Control Plan |
FCP |
fuel consumption projection |
FCS |
FGB Communications System |
FCS |
Flight Crew Systems |
FCT |
file compare tool |
FD |
flight day/director |
FD |
flight design |
FD |
flight dynamics |
FD/FI |
fault detection/fault isolation |
FDA |
Food and Drug Administration |
FDA |
functional development article |
FDDI |
fiber distributed data interface |
FDE |
Flight Dynamics Engineer |
FDF |
flight data file |
FDF |
Flight Dynamics Facility |
FDI/RM |
fault detection and isolation/redundancy management |
FDIR |
fault detection, isolation and recovery/reconfiguration |
FDM |
Fault detection and management |
FDMA |
Frequency-Division Multiple Access |
FDO |
Fee Determination Official |
FDP |
Fatigue Decreased Proficiency |
FDPA |
flight dynamics and planning analysis |
FDR |
Final Design Review |
FDS |
Fire Detection System |
FDS |
fire detection and suppression |
FDS |
Flight Design Systems |
Fe |
iron |
FEA |
finite element analysis |
FEAT |
final engineering acceptance test |
FEAT |
failure environment analysis tool |
FED-STDS |
Federal Telecommunications Standards |
FEID |
Flight Equipment Interface Device |
FEL |
First Element Launch |
FEM |
finite element model |
FEO |
flight elements office |
FEP |
Front-end Processor |
FEP |
fluorinated ethylene propylene |
FERD |
Facility and Equipment Requirements document |
FET |
field effect transistors |
FEU |
functionally equivalent unit |
FEU |
flight evolution unit |
FF |
first flight |
FF |
free-flyer |
FFFT |
Forced Flow Flamespread Test |
FFHD |
First Flight Hardware Delivery |
FFP |
firm fed price |
FFRR |
First-Flight Readiness Review |
FGB |
Functional Cargo Block [sic] (Functionalui Germaticheskii Block) |
FGE |
fine guidance electronics |
FGS |
fine guidance sensor |
FGSE |
Fine Guidance System Electronics |
FHRC |
flex hose rotary coupler |
FHST |
Fixed Head Star Tracker |
FIM |
Flight/Functional Integration manager |
FIMS |
Fault Isolation Monitoring System |
FIP |
Flight Increment Plan |
FIPS |
Federal Information Processing Standards |
FITL |
flight increment training load |
FLC |
Fluids logistics carrier |
FLD |
fluid dynamics |
FLPS |
Flight Loads Preparation System |
FLT |
flight |
FM |
facility management |
FM |
flight model |
FM |
frequency modulation |
FMA |
failure modes analysis |
FMA |
fixed MPAC adapter |
FMAD |
fluid management and distribution |
FMC |
fluid momentum controller |
FMEA |
failure modes and effects analysis |
FMECA |
failure modes, effects, and criticality analysis |
FMS |
Financial Management Systems |
FMS |
fluid/food management system/subsystem |
FMT |
file and memory transfer [software] |
FO |
Fabrication Order |
FO |
fiber optics |
FRE |
Functional Requirement Envelope |
FRED |
Facilities Request Data Base |
FRHC |
Force Reflecting Hand Controller |
FRR |
Flight Readiness Review |
FRS |
Functional Requirements Summary |
FS |
Factor of Safety |
FSD |
fluid system design/distribution |
FSD |
full-scale development |
FSE |
flight support equipment |
FSES |
flight software execution system |
FSIM |
functional simulation |
FSM |
fungal spores monitor |
FSR |
Final Systems Review |
FSSA |
Flexible Substrata Solar Array |
FSSR |
flight system software requirement |
FST |
Fire Safety Technology |
FSU |
Functional Support Unit |
FSVS |
Flight Software Verification System |
FSW |
flight software |
FSW |
feet of sea water |
ft |
foot |
G |
giga (one billion) |
g |
Acceleration of Gravity |
g |
gram |
G&A |
General and Administrative |
G&C |
Guidance and Control |
G&N |
Guidance and Navigation |
G.IM |
Geometric Mathematical Model |
G.m.t. |
Greenwich Mean Time |
G/L |
greater than/less than |
GaAIAs |
gallium aluminum arsenide |
GaAs |
gallium arsenide |
GANE |
Global Positioning System (GPS) Attitude & Navigation Experiment |
GAO |
General Accounting Office |
GASMAP |
Gas Analysis System for Metabolic Analysis of Physiology |
gb |
gigabit |
GBD |
generation breakdown |
GBF |
Gravitational Biology Facility |
GBL |
Generation Breakdown List |
gbps |
gigabits per second |
GC/IMS |
gas chromatograph/ion mobility spectrometry |
GC/MS |
Gas Chromatograph/Mass Spectrometer |
GCA |
gas conditioning assembly |
GCC |
Ground Control Center |
GCE |
Ground Control Equipment |
GCR |
Galactic Cosmic Radiation/Ray |
GCS |
Ground Control Station |
GCSD |
Government Communications Systems Department |
GCT |
Growth Core Team |
GCTC |
Gagarin Cosmonaut Training Center |
GDCS |
Ground Distributed Control System |
GDMS |
Ground Data Management System |
GDS |
Ground Data Systems |
GENPLAN |
Generative Progress Planning |
GEO |
Geosynchronous Earth Orbit |
GEODSS |
Ground-Based, Electro-Optical Deep-Space Surveillance System |
GEOMOD |
geometric modeler |
GET |
Ground Elapsed Time |
GeV |
gigaelectronvolts |
GF |
grapple fixture |
GFE |
Government-furnished equipment |
GFI |
Govemment-furnished Information |
GFM |
Government-furnished material |
GFP |
Government-furnished property |
GFY |
Government Fiscal Year |
GG |
gravity gradient |
GH2 |
gaseous hydrogen |
GHz |
gigahertz |
GIDEP |
Government-Industry Data Exchange Program |
GKS |
Graphical Kernal System |
GL |
Graphics Laboratory |
GLS |
Government Launch Services |
GLSA |
Government Large Structures Assembly |
GLSC |
Government Launch Services-Cryogenic |
GLSF |
General Laboratory Support Facilities |
GM |
Geometric Mean |
GMOS |
Generic Message Orientation System |
GMS |
Geostationary Meteorological Satellite |
GMW |
Generic Maintenance Workstation |
GN |
gaseous nitrogen |
GN&C |
guidance, navigation, and control |
GN&C/MT |
Guidance, Navigation, and Control/Mobile Transporter |
GN&C/P |
guidance, navigation, and control/propulsion |
GNCM |
guidance, navigation, control management |
GO2 |
gaseous oxygen |
GOC |
Ground Operations Center (part of Mobile Servicing System) |
GODF |
Ground Operations Data File |
GOE |
Ground Outfitting Equipment |
GOES |
GN&C Orbital Environment Simulation |
GOLIP |
Ground Operations and Logistics Integration Panel |
GPC |
General Purpose Computer |
GPO |
Government Printing Office |
GPP |
General Purpose Processor |
GPRP |
Government Production and Research Property |
GPS |
Global Positioning System |
GP/INS |
Global Positioning System/Inertial Navigation System |
GPTU |
General Purpose Transfer Unit |
GPWS |
General Purpose Workstation |
GR&C |
Ground Rules and Constraints |
Gr/E |
Graphite-Epoxy |
GRC |
Glenn Research Center |
GRD |
general requirements docurnent |
GRO |
Gamma Ray Observatory |
GRP |
Glass Reinforced Plastic |
Gs |
geodetic |
GS |
Ground System |
GSA |
General Services Administration |
GSC |
Ground Station Control |
GSD |
General Services Division |
GSDE |
Ground System Development Environment |
GSDR |
Ground System Data Repository |
GSE |
ground support equipment |
GSFC |
Goddard Space Flight Center |
GSFT |
Ground Support Facilities and Tools |
GSI |
Government Source Inspection |
GSP |
ground support position |
GSR |
Generic Space Robot |
GSRP |
Ground Safety Review Panel |
GSTDN |
Ground Satellite Tracking Data Network |
GT |
global temperature |
GT |
Group Technologies |
GTA |
ground test article/assembly |
GTOS |
Ground Terminal Operations Support |
GTOSS |
Generalized Tethered Object System Simulation |
GTR |
Government transportation request |
GTU |
ground test unit |
HCS |
Hybrid Computation and Simulation |
HCSE |
Hyperbaric Chamber Support Equipment |
HD |
Hard Drive |
HDBK |
handbook |
HDR |
High Data Rate |
HDRR |
High Data Rate Recorder |
HDTV |
high definition television |
HDW |
hardware |
He |
helium |
HEAO |
High Energy Astronomy Observer |
HECA |
Hyperbaric Environmental Control Assembly |
HEDS |
Human Exploration and Development of Space |
HEO |
High Earth Orbit |
HEPA |
High-Efficiency Particulate Air |
HETGS |
High-Energy Transmission Grating Spectrometer |
HF |
High Frequency |
HFE |
Human Factors Engineering |
HFS |
high fidelity simulator |
HFSM |
high fidelity simulation model |
Hg |
Mercury |
HGA |
High-Gain Antenna |
HGPCA |
Hyperbaric Gas Pressurization Control Assembly |
HHL |
Hand-held Lidar |
HI-FI |
High Fidelity |
HI-REL |
High Reliability |
HIRL |
Hypervelocity Impact Research Facility |
HIT |
Horizontal Integration Team |
HIT-F |
Hypervelocity Impact Test Facility |
HLA |
high level analog |
HLA |
Hyperbaric Lighting Assemblies |
HLCM |
High Level Control Module |
HLLV |
Heavy Lift Launch Vehicle |
HLS |
hyperbaric lighting set |
HMC |
Hydrogen Master Clock |
HMD |
head/helmet mounted device |
HMD |
helmet-mounted display |
HME |
heat and moisture exchange |
HMF |
Health Maintenance Facility |
HMFWS |
Health Maintenance Facility Workstation |
HMIF |
Human-Machine Interface |
HMMR |
High-Resolution Multifrequency Microwave Radiometer |
HMO |
Habitat Module Outfitting |
HMOS |
Habitat Module Outfitting System |
HO |
hydrogen/oxygen |
HOL |
High-Order Language |
HOSC |
Huntsville Operations Support Center |
HOU |
Houston |
HOW |
hand-over word |
HPA |
High Power Amplifier |
HPBID |
Host Processor/Bus Interface Dedicated |
HPBIG |
Host Processor/Bus Interface Global |
HPF |
Hazardous Processing Facility |
HPORS |
High Pressure Oxygen Recharge Subsystems |
HPSI |
Human-Ported System Interface |
HQ |
Headquarters |
HQUL |
Hardware Quantity and Usage List |
HR |
Human Resources |
HR&T |
Heat Rejection and Transport |
HRC |
High Resolution Camera |
HRD |
high rate demultiplexer |
HRDL |
high rate data link |
HRDM |
high rate demultiplexer/multiplexer |
HRF |
Human Resource Facility |
HRF |
Human Research Facility |
HRFM |
high-rate frame multiplexer |
HRM |
high rate modem |
HRMA |
High-Resolution Mirror Assembly |
HRPT |
High-Resolution Picture Transmission |
HRR |
Human Resource Representative |
HRS |
heat rejection subsystem |
HRS |
High-Resolution Spectograph |
HRT |
High-Resolution Tracker |
HRTS |
High-Resolution Telescope Spectrograph |
HSD |
Hamilton Standard Division |
HSE |
Hyperbaric Support Equipment |
HSI |
hardware and software integration |
HSO |
Habitation and Station Operations |
HSP |
High-Speed Photometer |
HST |
Hubble Space Telescope |
HSTA |
Harris System Testability Analyzer |
HT |
high temperature |
HTC |
Human-Tended Capability |
HTF |
Horizontal Test Facility |
HTLPS |
High Temperature Liquid Phase Sintering |
IACO |
installation, assembly, and check out |
IACO |
integration and checkout |
IACO |
integration and checkout operations |
IACP |
Integrated Assembly and Configuration Panel |
IAF |
International Aeronautical Federation |
IAH |
inertial attitude hold |
IAM |
Information Asset Management |
IAR |
Independent Annual Review |
IAR |
integrated avionics racks |
IAS |
Internal Audio Subsystem |
IATCS |
Internal Active Thermal Control System |
ICAM |
Integrated Computer Aided Manufacturing |
ICAP |
Integrated Configuration Assessment Panel |
ICC |
Integrated Command and Control |
ICC |
Instrument Control Center |
ICD |
interface control document |
ICD |
instrument control document |
ICE |
in-circuit emulator |
ICN |
Integrated Communications Network |
ICOM |
intercom |
ICT |
Integrated Communications Team |
ICT |
Interface Control Tooling |
ICWG |
Interface Control Working Group |
ICWO |
intercomponent work order |
ID |
identification/identify |
ID |
integrated diagnostics |
IDA |
Intentional Design Assessment |
IDAC |
integrated design analysis cycle |
IDB |
Instrumentation data base |
IDD |
interface development/division document |
IDD |
interface design document |
IDDR |
Incremental/Integrated Detail Design Review |
IDE |
Interior Design Engineering |
IDEAS |
Integrated Design and Engineering Analysis Software |
IDEF |
Integrated Computer-Aided Manufacturing Definition |
IDEFO |
ICAM Definition Language Zero |
IDL/S |
Intersite Delivery List/Schedule |
IDM |
Information & Data Management |
IDMM |
Intermediate and Depot Maintenance manual |
IDP |
Interface Development Panel |
IDR |
Incremental Design Review |
IDRD |
increment definition requirements document |
IDS |
Integrated Data Systerns |
IDT |
interdepartment transfer |
IEA |
Integrated Equipment Assembly |
IEC |
International Electrotechnical Commission |
IEEE |
Institute of Electrical and Electronic Engineers |
IELK |
Individual Equipment Liner Kit |
IEVA |
Integrated Extravehicular Activity |
IF |
intermediate frequency |
IF |
Integration Facility |
IFB |
invitation for bid |
IFHX |
interface heat exchanger |
IFM |
inflight maintenance |
IFS |
integrated fluid servicer |
IFSP |
ITA Fluid Service Pallet |
IFSR |
Integrated Flight Software Requirement |
IG |
Inspector General |
IGA |
Intergovernmental Agreement |
IGA |
International Governmental Agreement |
IGES |
Initial Graphic Exchange Specification |
IGSE |
Instrument Ground Support Equipment |
IH/SR |
Integrated Hardware and Software Review |
IHCP |
Increment Hazard Control Plan |
IHTC |
Interim Human-Tended Capability |
IIA |
Instrument interface Agreement |
IIAP |
ISS Independent Assessment Panel |
IIDD |
integrated information development plan |
IIO |
Inertial Instrument/Instrumentation Organization/Operation |
IISS |
Integrated Information Support System |
IL |
intermediate language |
ILE |
Intermediate Language Executor |
ILE |
Intermediate Language Editor |
ILP |
Integrated Logistics Panel |
ILS |
Integrated Logistics Support/System |
ILSA |
Industry Large-Structures Assembly |
ILSC |
Industry Launch Services - Cryogenic |
ILSP |
Integrated Logistics Support Plan |
ILSS |
Industry Launch Services - Storable |
ILSWG |
Integrated Logistics Support working group |
ILTF |
in-line test fixture |
IM |
Institutional Management |
IMAD |
Information Management Assimilation & Delivery |
IMCA |
integrated motor control assembly |
IMCB |
Information Management Control Board |
IMD |
Integrated Monitoring and Diagnostics |
IMMCL |
Integrated Master Measurement and Command List |
IMS |
Information Management System |
IMS |
Institutional Management System |
IMS |
Inventory Management System |
IMS |
ion mobility spectrometry |
IMTF |
Inflight Maintenance Team |
IMU |
Inertial Measurement Unit |
IMV |
intermodule ventilation |
INS |
Inertial Navigation System |
INS |
Integrated Nitrogen System |
IO |
industrial operations |
IOC |
Initial Operation Capability |
IOC |
Integrated Operations Configuration |
IOC |
Initial Operational Capability |
IOCU |
Input/Output Control Unit |
IOCWG |
IOC working group |
IODB |
Input/Output data base |
IODP |
Incremental Operations Design Panel |
IOHA |
Integrated Operational Hazards Analysis |
IOP |
In-Orbit Plane |
IOP |
Increment Operations Plan |
IOP |
Input/Output Processor |
IOPT |
Integrated Operational Procedures and Timelines |
IOR |
Increment Operations Review |
IOS |
Integrated Operations Scenario |
IP |
intermediate processor |
IP |
Internal Protocol |
IP |
International Partner |
IP |
Internet Protocol |
IPB |
Illustrated Parts Breakdown |
IPC |
Information Planning Council |
IPC |
Interprocess Communications |
IPCL |
Instrumentation Program and Command List |
IPD |
Integrated Product Development |
IPG |
Information Planning Group |
IPIR |
Increment Payload Integration Requirements |
IPL |
Initial Program Load |
IPM |
Interprocessor Multiplexer |
IPPDR |
Interim Program Preliminary Design Review |
IPRD |
Integrated Payloads Requirements Document |
IPRM |
Integrated Performance and Risk Management |
IPS |
Instrument Pointing System |
IPSSD |
Integrated Program Scheduling Standard Document |
IPT |
Integrated Product Team |
IPT/AIT |
Integrated Product Team/Analysis and Integration Team |
IPTA |
Integrated Propulsion Test Article |
IR |
ionizing radiation |
IR |
infrared |
IR |
ionizing radiation |
IR&D |
Independent Research and Developrnent |
IRB |
Inertial Reference Base |
IRB |
Instrumentation/Relay Board |
IRD |
interface requirement document |
IRDS |
Information Resources Dictionary System |
IRE |
Ionizing Radiation Effects |
IREC |
Ionizing Radiation Effects Compatibility |
IRGW |
Intermediate Rate Gateway |
IRI |
International Reference Ionosphere |
IRM |
Information Resource Management |
IRM |
integrated risk management |
IRN |
Interface Revision Notice |
IRP |
Integrated Resource Plan |
IRR |
Interface Requirements Review |
IRS |
Integrated Resource and Schedule |
IRU |
In-flight Refill Unit |
IRU |
Inertial Reference Unit |
IRU |
IVA Replacement Unit |
IRWG |
Interface Requirements Working Group |
IS |
Imaging Spectrometer |
IS |
Information Systems |
ISA |
inertial sensor assembly |
ISB |
Issues Screening Board |
ISC |
Information Systems Contract |
ISD |
Information Systems Directorate |
ISD |
intersite delivering |
ISE |
integrated station executive |
ISF |
Industrial Space(s) Facility |
ISM |
Interstellar Medium |
ISO |
International Standards Organization |
ISPOC |
International Safety and Product Assurance Oversight Committee |
ISPR |
International Standard Payload Rack |
ISQR |
Institutional Quality and Safety Division |
ISR |
Interim Systems Review |
ISS |
International Space Station |
ISS |
internal secondary structure |
ISSA |
International Space Station Alpha |
ISU |
International System Unit |
ISV |
Integrated Systems Verification |
IT&V |
integration, test, and validation/verification |
IT&VE |
Integrated Test and Verification Environment |
ITA |
Integrated Truss Assembly |
ITA |
Intelligent Task Automation |
ITAC |
Integration Trades and Analysis Cycle |
ITAC-O |
Integration Trades and Analysis Cycle-O |
ITAR |
International Traffic in Arms Regulation |
lTAV |
Integrated Truss Assembly Verification |
ITCS |
Intemal Thermal Control System |
ITF |
Integration Training Facilities |
itoo |
Integrated Tactical Operations Organization |
ITP |
Increment Training Plan |
ITS |
Integrated Truss Segments |
ITS |
information transmittal sheet |
ITU |
Input Terminal Unit |
ITVE |
integrated test and verification environment |
ITVF |
Integration, Test, and Verification Facility |
IU |
interface unit |
IUC |
Initial User Capability |
IUD |
ITA utility distribution |
IUDP |
ITA Utility Distribution Pallet |
IUG |
Intelligence/Interactive Users' Guide |
IUM |
Interim Use Manual |
IUS |
Inertial Upper Stage |
IV |
intravehicular |
IV&V |
Independent Verification and Validation |
IV-CPDS |
Intravehicular Charged Particle Directional Spectrometer |
IVA |
intravehicular activity |
IVACS |
Intravehicular Control Station |
IVAWG |
IVA working group |
IVE |
Interface Verification Equipment |
IVS |
internal video subsystem |
IVT |
Integration, Verification, and Training |
IWFS |
Integrated Waste Fluids System |
IWG |
Interface Working Group |
IWG |
initialization working group |
IWGS |
Integrated Waste Gas System |
IWS |
Integrated Water System |
JACD |
joint accommodation configuration document |
JACD |
joint architectural control document |
JASWG |
Joint Safety Assurance Working Group |
JCNSP |
Joint CSA/NASA Simulation Panel |
JCP |
Joint Committee on Printing |
JDL |
job drawing list |
JDTRS |
Japanese Data Tracking & Relay Satellite |
JEA |
Joint Endeavor Agreement |
JEM |
Japanese Experiment Module |
JEM-EF |
Japanese Experiment Module-Exposed Facility |
JEM-PM |
Japanese Experiment Module-Pressurized Module |
JEMRMS |
JEM Remote Manipulator System |
JIN |
JSC Interface Network |
JIS |
Joint Integration Schedule/Simulation |
JISP |
Joint Integrated Simulation Procedures |
JLM |
Japanese Logistic Module |
JMICB |
Joint Mission Integration Control Board |
JMP |
Joint Management Plan |
JMSWG |
Joint Manifest and Schedules Working Group |
JOIP |
Joint Operations Interface Plan |
JPA |
Job Performance Assistance |
JPALS |
JSC Program Automated Library System |
JPDRD |
Joint Preliminary Design Requirements Document |
JPDRD |
Joint Program Definitions and Requirements Document |
JPL |
Jet Propulsion Laboratory |
JPP |
Joint Program Plan |
JPR |
Joint Program Review |
JPRCB |
Joint Program Requirements Control Board |
JRB |
Joint Review Board |
JRMS |
JEM Remote Manipulator System |
JSC |
Johnson Space Center |
JSCDSS |
JSC Data Support System |
JSCMD |
Johnson Space Center Management Directive |
JSCMI |
JSC Management Instruction |
JWG |
joint working group |
K |
thousand |
k |
kilo |
K-Band |
Code Elements per Second in Thousands |
K-SIM |
K-band Simulation |
KB |
keel bending |
LCN |
Logistics Code Number |
LCP |
Left Circular Polarization |
LCP |
Letter Change Proposal |
LCVG |
Liquid Cooling and Ventilation Garment |
LD |
Luminescence Detector |
LDEF |
Long-Duration Exposure Facility |
LDI |
Local Data-Bus Interface |
LDIP |
Logistics Development Implementation Plan |
LDM |
Logical Data Model |
LDO |
Long Duration Orbiter |
LDR |
Large Deployable Reflector |
LDR |
Low Data Rate |
LDRF |
Long-Distance Range Finder |
LDS |
laser docking sensor |
LDU |
line of code |
LDU |
linear drive unit |
LEA |
Logistics Engineering Analysis |
LED |
Light-Emitting Diode |
LEEC |
Laser-to-Electric Energy Conversion |
LEM |
Logistics Element Manager |
LEO |
low earth orbit |
LESC |
Lockheed Electronic Systems Company |
LET |
Linear Energy Transfer |
LETGS |
Low-Energy Transmission Grating Spectrometer |
LF |
laboratory floor |
LF |
load factor |
LF |
low frequency |
LFF |
Large Formation Flyer |
LFMR |
Low-Frequency Microwave Radiometer |
LG |
logistics |
LGA |
low gain antenna |
LGG |
light gas gun |
LIDAR |
Laser-Instrument Distance and Range |
LIDAR |
Light Intensification Detection and Ranging |
LIM |
Logistics Inventory Management |
LIMS |
Logistics Inventory Management System |
LIOS |
local input/output subsystem/subunit |
LIS |
lightning imaging sensor |
LIS |
Logistics Information System |
LISP |
List Process (language) |
LL |
lighting laboratory |
LLA |
low level analog |
LRR |
Launch Readiness Review |
LRS |
Laser Reflectance Spectrometer |
LRU |
land/line/lowest replaceable unit |
LS |
Laboratory Starboard |
LS |
Launch Site |
LS |
Life Support |
LS |
light shield |
LSA |
logistics support analysis |
LSA |
Large Space Antenna |
LSA |
Launch Services Agreement |
LSAP |
Launch Site Assembly Plan |
LSAPM |
Logistics Support Analysis Procedures Manual |
LSAR |
Logistics Support Analysis Record |
LSB |
Least Significant Bit |
LSC |
Large Solar Concentrator |
LSE |
Laboratory Support Equipment |
LSF |
Laboratory Support Facilities |
LSF |
Life Sciences Facility |
LSG |
Life Sciences Glovebox |
LSI |
large-scale integration |
LSIS |
Loral Space Information Systems |
LSL |
Life Sciences Laboratory |
LSLE |
Life Sciences Laboratory Equipment |
LSM |
Life Support Module |
LSM |
Logistics Support Manager |
LSML |
Life Science Mini Laboratory |
LSP |
Laboratory Support Processor |
LSP |
Logistics Support Plan |
LSRF |
Life Sciences Research Facility |
LSS |
life support system |
LSSI |
logistics support systems and integration |
LSSM |
Launch Site Support Manager |
LSSP |
Launch Site Support Plan |
LSTE |
Large Structure Technology Experiment |
LTL |
low temperature loop |
LTU |
load transfer unit |
LTV |
Logistics Transfer Vehicle |
LZP |
level zero processing |
M |
mega |
M |
million |
m |
meter |
M&CE |
Manifesting and Cargo Engineering |
M&D |
maintenance and depot |
M&I |
management and integration |
M&O |
maintenance and operations |
M&P |
materials and processes |
M&T |
manufacturing and test |
m.d.t. |
Mountain Daylight Time |
M/D |
meteoroid/debris |
M/OD |
meteoroid/orbital debris |
m/s |
meters per second |
m/s/s |
meters per second per second |
MA |
multiple access |
MAA |
metal aerosol analyzer |
MAAPP |
manufacturing assessment and planning package |
MAAR |
Monthly Associate Administrator's Report |
MAC |
Maintenance Allocation Chart |
MAC |
Materials and Coatings |
MAC |
Maximum Allowable Concentration |
MAC |
Message Authentication Code |
MAF |
Master Audit File |
MAF |
multiple-access forward |
MAGIK |
Manipulator Analysis, Graphics, and Integrated Kinematics |
Mbps |
megabits per second |
MBS |
Mobile Remote Servicer Base System |
MBSA |
main bus switching assembly |
MBSU |
main bus switching unit |
Mbyte |
megabyte |
MC |
manned core |
MC |
midcourse correction |
MCA |
Major Constituent Analyzer |
MCA |
Mission Complement Analysis |
MCAD |
mechanical computer-aided design |
MCAS |
Mobile Servicing System (MSS) Common Attach System |
MCB |
Multilateral Control Board |
MCC |
Mission Control Center |
MCCF |
MSS command/control facility |
MCCU |
Mission Control Center Units |
MCDS |
Management, Communications, and Data System |
MCDS |
Multifunction CRT Display System |
MCE |
MSS Control Equipment |
MCNIU |
Multicompatible Network Interface Unit |
MCP |
Materials Control Plan |
MCR |
Materials Control Requirement |
MCS |
Maneuver Control Systems |
MCS |
microbiology safety cabinet |
MCS |
Motion Control Systems |
MCT |
Management Control Team |
MCU |
Mechanism Control Unit |
MDA |
McDonnell Douglas Aerospace |
MDA |
Mission Database Application |
MDB |
mission data base |
MDBMS |
Medical Data Base Management System |
MDC |
maintenance data collection |
MDC |
Manipulation Detection Code |
MDCS |
Maintainability Data Collection System |
MDD |
mission description document |
MDE |
mechanism drive electronics |
MDF |
Manipulator Development Facility |
MDM |
multiplexer/demultiplexer |
MDMS |
Maintenance Data Management System |
MDP |
Master Development Plan |
MDS |
Maintenance Diagnostic System |
MDT |
mean down time |
MDU |
Medical Development Unit |
MGM/PFT |
metabolic gas monitor/pulmonary function tester |
MGSE |
Mechanical Ground Support Equipment |
MGSS |
Manned Geosynchronous Spacecraft Servicer |
MHAC |
Multifrequency High-Gain Antenna Configuration |
MHD |
magnetohydrodynamics |
MHEX |
Material Handling Extension |
MHz |
megahertz |
MI |
Management Integration |
MI |
Manufacturing Instruction |
MI |
modification instruction |
mi |
mile |
MIA |
Multiplex Interface Adapter |
MIB |
medical information bus |
MIB |
Multilayer Interconnection Board |
MIC |
Management Information Center |
MIC |
microphone |
MIC |
microwave integrated circuit |
MICS |
Material Inventory Control System |
MIDAS |
materials in devices as superconductors |
MIE |
modal identification experiment |
MIF |
Module Integration Facility |
mil |
thousandths of an inch |
MIL-HDBK |
military handbook |
MIL-STD |
military standard |
MILSPEC |
military specification |
MlLSTAR |
Military Strategic/Tactical and Relay Satellite |
MIM |
microgravity isolation measurement |
MIMO |
multiple input, multiple output |
min |
minimum |
min |
minute |
MIO |
Management Integration Office |
MIP |
Maintainability Implementation Plan |
MIP |
Mission Integration Plan |
MIPS |
million instructions per second |
MIPS |
Mir Interface to Payload Systems |
MIR |
Mission Integration Review |
MIRR |
Material Inspection and Receiving Report |
MIS |
Management Information System |
MIS |
Master Integrated Schedule |
MIS |
Medical Information System |
MiSDE |
Mir Structural Dynamics Experiment |
MISN |
Master Integrated Schedule/Network |
MITA |
manufacturing integration test assembly |
MIUL |
Material Identification Usage List |
MLA |
multilinear array |
MLA |
multispectral linear array |
MLE |
maximum likelihood estimation |
MLI |
multilayer insulation |
MLP |
Monitored Line Program |
MLR |
mass loss rate |
MLS |
Microwave Limb Sounder |
mm |
millimeters |
MM |
Momentum Management |
MM/OD |
micrometeoroid/orbital debris |
MMA |
module manager application |
MMA |
multiplexer mating adapter |
MMC |
Mission Management Computer |
MMCH/Y |
Mean Maintenance Crew Hours per Year |
MMCL |
Master Measurements and Command List |
MMD |
mass-measurement device |
MMD |
mean mission duration |
MMD |
Mobile Maintenance Depot |
MMDB |
Master Measurement Data Base |
MMDB |
Mission Manifesting Data Base |
MMDM |
multi multiplexer-demultiplexer |
MMDS |
Mission Management Data System |
MME |
man month equivalents |
MMH |
monomethylhydrazine |
mmHg |
millimeters of Mercury |
MMl |
man-machine interface |
MML |
Master Measurement List |
MMMD |
micro mass-measurement device |
MMMH |
mean maintenance man hours |
MMP |
magnetospheric multiprobes |
MMS |
Maintenance Management System |
MMS |
Manufacturing Message Specification |
MMS |
Momentum Management System |
MMS |
multimission spacecraft |
MMSE |
multimission support equipment |
MMT |
Mission Management Team |
MMU |
mass memory unit |
MO |
Management Operations |
MO |
Module Outfitting |
MOA |
Memorandum of Agreement |
MOD |
Miscellaneous Obligating Document |
MOD |
Mission Operations Directorate |
MOD |
module outfitting design |
MOD/UM |
modulated/unmodulated |
MODB |
Master Object data base |
MODIS |
Moderate Resolution Imaging Spectrometer |
MOI |
moment of inertia |
MOIWG |
Mission Operations and Integration Working Group |
MOL |
Manned Orbiting Laboratory |
MOODS |
multiple orbiting objects dynamics simulation |
MOP |
maximum operating pressure |
MOP |
Mission Optimization Program |
MORES |
metal oxide regenerable subsystem |
MOT |
musculoskeletal overload trainer |
MOU |
Memorandum of Understanding |
MP |
maintenance platform |
MPA |
Maintenance Prompter Application |
MPA |
multiple payload adapter |
MPAC |
Multipurpose Application Console |
MPAD |
Mission Planning and Analysis Division |
MPC |
multiple-payload carrier |
MPDB |
Main Power Distribution Board |
MPEV |
Manual Pressure Equalization Valve |
MPLM |
Mini-Pressurized Logistics Module |
MPP |
Material Processing Platform |
MPPF |
Materials Processing Products Facility |
MPRD |
maintainability process requirements document |
MPS |
Main Propulsion System |
MPS |
Materials Processing in Space |
MPS |
Materials Processing System |
MPS |
mechanically pumped system |
MPS |
Mission Planning System |
MPS |
Modular Power Subsystem |
mps |
meters per second |
MPSR |
mission profile storage and retrieval |
MPT |
Mission Planning Terminal |
MPWG |
Mass Properties Working Group |
MR |
management and resources |
MR |
management report/review |
MR |
materials request |
MRAD |
Mission Requirements and Allocations Document |
MRB |
Material Review Board |
MRCS |
MSS Robotics Control Station |
MRCS |
multiple report creation system |
MRD |
mission requirements document |
MRDB |
Mission Requirements Data Base |
MRMDF |
Multi-use Remote Manipulator Development Facility |
MRMS |
Mobile Remote Manipulator System |
MRS |
Medical Restraint System |
MRS |
mobile remote servicer |
MRWG |
Mission Requirements Working Group |
MS |
margins of safety |
MS |
Mission Specialist |
ms |
mail stop |
ms |
rnillisecond |
MSA |
module structure assembly |
MSA |
multiuse solar array |
MSAD |
Microgravity Science and Applications Division |
MSB |
most significant bit |
MSC |
Mission Systems Contract |
MSC |
Mobile Servicing Center |
MSCS |
Mobile Service Center System |
MSD |
mass storage device |
MSE |
maintenance support equipment |
MSF |
mass storage function |
MSFC |
Marshall Space Flight Center |
MSI |
maintenance-significant items |
MSI |
multisystem integration |
MSID |
Measurement Stimulation Identification |
MSIF |
multisystem integration facility |
MSIS |
Man-Systems Integration Standards |
MSRE |
Mir Sample Return Experiment |
MSS |
Mission Specialist Station |
MSS |
Mobile Servicing System |
MST |
modular servicing tool |
MST |
Module System Trainer |
MSTL |
Man-Systems Telerobotics Laboratory |
MSU |
mass storage unit |
MT |
Mobile Transporter |
MT&L |
manufacturing, test and logistics |
MTA |
maintenance task analysis |
MTB |
magnetic torque bar |
MTBF |
mean time between failures |
MTBR |
mean time between repairs |
MTCT |
manipulator/teleoperator control technology |
MTE |
manual test equipment |
MTEM |
Mobile Transporter Element Manager |
MTIRI |
Multispectral Thermal Infrared Imager |
MTL |
Manufacturing and Technology Laboratory |
MTL |
Master Time Line |
MTL |
Materials Technology Laboratory |
MTL |
moderate temperature loop |
MTLO |
Moscow Technical Liaison Office |
MTP |
Master Test Plan |
MTS |
Mobile Transporter System |
MTS |
module-to-truss structure |
MTTR |
mean time to repair/replace |
MTTS |
mean time to service |
MTU |
master timing unit |
MTV |
Manned Transport Vehicle |
MUA |
Materials Usage Agreement |
MUX |
multiplexer |
mV |
millivolt |
MVAK |
Module Vertical Access Kit |
MVP |
Master Verification Plan |
NASA |
National Aeronautics and Space Administration |
NASCOM |
NASA Communications (network) |
NASDA |
National Space Development Agency of Japan |
NASP |
National Aerospace Plane |
NASTRAN |
NASA Structural Analysis Computer Program |
NB |
navigation base |
NB |
neutral buoyancy |
NBF |
Neutral Buoyancy Facility |
NBL |
Neutral Buoyancy Laboratory |
NBS |
National Bureau of Standards |
NBS |
Neutral Buoyancy Simulator |
NBT |
Neutral Buoyancy Test |
NC |
numerically controlled |
NC |
1 First Phasing Maneuver (Orbiter rendezvous maneuver) |
NC(Curve) |
noise criteria curve |
NCC |
Network Control Center |
NCC |
Nominal Corrective Combination Maneuver |
NCCDS |
Network Control Center Data System |
NCD |
number column density |
NCEN |
Network Compatibility Engineer |
NCG |
noncondensible gas |
NCn |
nth Phasing Maneuver |
NCRPM |
National Council of Radiation Protection and Measurement |
NCS |
Node Control Software |
NDC |
notification of document change |
NDE |
nondestructive evaluation |
NDI |
nondestructive inspection |
NDT |
nondestructive test |
Ne |
neon |
NEMS |
NASA Equipment Management System |
NET |
network |
NFS |
NASA FAR Supplement |
NFSD |
NASA FAR Supplement Directive |
NGT |
NASA Ground Terminal |
NH |
1 First Differential Height Maneuver |
NHB |
NASA handbook |
NHn |
nth Differential Height Maneuver |
NIA |
Network Interface Adaptor |
NIE |
natural and induced environment |
NIEP |
Natural and Induced Environments Panel |
NIF |
network interface function |
NIH |
National Institutes of Health |
NiH2 |
nickel hydrogen |
NIM |
Network Integration Manager |
NIMS |
NASA Interface Monitoring System |
NIPS |
NASA Interactive Planning System |
NIR |
nonionizing radiation |
NISI |
network and information system integration |
NIST |
National Institute of Standards and Testing (formerly NBS) |
NIU |
Network Interface Unit |
NLT |
not less than |
NM |
network management |
nm |
nanometer |
NMI |
NASA Management Instruction |
nmi |
nautical mile |
NMLO |
NASA Moscow Liaison Office |
NOA |
New Obligation Authority |
NOA |
notice of availability |
NOS |
Network Operating System |
NOSP |
Network Operations Support Plan |
NPD |
NASA Program Directive |
NPR |
National Performance Review |
NPSS |
NASA Packet Switching System |
NR |
not required |
NRC |
National Research Council |
NRT |
nonreal time |
NRZ |
not return to zero |
NSA |
National Security Agency |
NSA |
Node Switching Assembly |
NSCORT |
NASA Specialized Centers of Research and Training |
NSE |
Network Simulations/Systems Engineer |
NSF |
National Science Foundation |
NSIS |
NASA Software Information System |
NSN |
National Stock Numbers |
NSP |
NASA Support Plan |
NSPAR |
Nonstandard Part Approval Request |
NSRML |
Naval Submarine Research Medical Laboratory |
NSRS |
NASA Safety Reporting System |
NSS |
NISI Security Subpanel |
NSS/GO |
NASA Safety Standards/Ground Operations |
NST |
Node Systems Trainer |
NSTL |
National Space Technology Laboratory |
NSTS |
National Space Transportation System (Do Not Use--use SSP) |
NSU |
Node Switching Unit |
NTA |
network test adapter |
NTA |
Nitrogen tank assembly |
NTE |
not to exceed |
NTO |
nitrogen tetroxide |
NTSC |
National Television Standards Committee |
NTTF |
Network Test and Training Facility |
NWAN |
NASA Wide Area Network |
O&C |
operations and checkout |
O&M |
operations and maintenance |
O&R |
operations and robotics |
O&SHA |
Operating and Support Hazard Analysis |
O&U |
operations and utilization |
O&UCB |
Operations and Utilization Control Board |
O/A |
operations/administrative |
O/D |
on dock |
O2 |
oxygen |
OA |
office automation |
OACT |
Office of Advanced Concepts and Technology |
OAS |
Orbiter Attachment System |
OASIS |
Orbiter Avionics to Station Interface System |
OAST |
Office of Aeronautics and Space Technology |
OATS |
Optical Alignment Transfer System |
OB |
octave band |
OBC |
onboard computer |
OBCO |
onboard check out |
OBCP |
Onboard Computer Program |
OBCS |
Onboard Computer System |
OBS |
Operational Bioinstrumentation System |
OBS |
Organization Breakdown Structure |
OBT |
onboard training |
OCA |
Overall Configuration Analyses |
OCC |
Operations Control Center |
OCP |
Office of Commercial Programs |
OCP |
Operations Control Panel |
OCR |
Operations Capability Reference/Review |
OCR |
Optical Character Reader |
OCS |
Operations and Control Software |
OCS |
Operational Control Segment |
OCS |
Onboard Computer System [Russian] |
OCZ |
Operational Control Zone |
OD |
outside diameter |
ODB |
Operations Data Base |
ODBMS |
Onboard Data Base Management System |
ODC |
other direct charge |
ODC |
V/A other detailed cost value/added |
ODF |
Operations Data File |
ODIN |
onboard data interfaces and network |
ODM |
operational data message |
ODRS |
Orbital Decay and Reboost Simulation |
ODS |
Orbiter Docking System |
OE |
operating envelope (OMS term) |
OEL |
Operational Events List |
OEM |
original equipment manufacturer |
OETC |
Oversized Element Transportation Cradle |
OF |
outfitting |
OFDS |
operations flight design system |
OFP |
Operational Flight Profile |
OFPP |
Office of Federal Procurement Policy |
OFT |
Orbital Flight Test |
OGE |
objective grating electronics |
OHA |
operating hazards analysis |
OI |
operational instrumentation/increment/integration |
OI |
operations integration |
OIP |
Operations Integration Panel |
OIS |
Operational Intercommunication System |
OISR |
Open Item Status Report |
OIU |
Orbiter Interface Unit |
OJT |
on the job training |
OLIPSE |
Optizon Liquid Phase Sintering Experiment |
OLSD |
off-line storage device |
OMA |
Operations Management Application |
OMB |
Office of Management and Budget |
OMCF |
Orbiter Maintenance & Checkout Facility |
OMGA |
Operations Management Ground Application |
OMIS |
Operations and Maintenance Information System |
OMLC |
Operations Management & Logistics Center |
OMM |
Orbital Maintenance Mission |
OMP |
Operations and Maintenance Plan |
OMRS |
Operations and Maintenance Requirements and Specifications |
OMS |
Orbital Measuring System |
OMS |
Orbital Maneuvering System |
OMV |
Orbital Maneuvering Vehicle |
OMWS |
Orbiter Maintenance Workstation |
OOCI |
OSTP/ODF crew interface |
OOD |
object oriented design |
OOS |
On-orbit Operations Summary |
OP |
operation |
OP |
Operational Processing |
OP |
Operations Panel |
OPAS |
Operations Planning and Analysis Systems |
OPB |
Operations Program Baseline |
OPF |
Orbiter Processing Facility |
OPM |
Optical Properties Monitor |
OPR |
Office of Primary Responsibility |
OPS |
Operations Planning System |
OPS |
operations |
ORA |
Operational Requirements Analysis |
ORACLE |
a software data base tool |
ORD |
Operations Requirements Document |
ORI |
Operational Readiness Inspection |
ORLA |
optimum repair-level analysis |
ORR |
Operational Readiness Review |
ORU |
Orbital Replacement Unit |
OS |
Operating System |
OS |
Operations Support |
OS |
Orbital Station |
OSA |
Orbiter-based Station Avionics |
OSAR |
Operations Suitability Assessment Report |
OSC |
Operations Support Center |
OSE |
orbital support equipment |
OSF |
Office of Space Flight |
OSHA |
Occupational Safety and Health Administration |
OSI |
open system interconnection |
OSID |
Operating System Interface Definition |
OSPL |
overall sound pressure level |
OSR |
Operational Safety Review |
OSSE |
Oriented Scintillation Spectrometer Experiment |
OSTP |
Office of Science and Technology Policy |
OSTP |
onboard short term Plan |
OSU |
On-Orbit Serviceable Unit |
OSVS |
Orbiter Space Vision System |
OT&E |
operational test and evaluation |
OTA |
Optical Telescope Assembly |
OTC |
over the counter |
OTCM |
ORU/Tool Changeout Mechanism |
OTDA |
Office of Tracking and Data Acquisition |
PABF |
Precision Air Bearing Floor |
PAD |
program approval document |
PADS |
Product Assurance Data System |
PAE |
Payload Attached Equipment |
PAFAM |
Performance and Failure Assessment Monitor |
PAH |
Payload Accommodations Handbook |
PAI |
payload analytical integration |
PAIM |
Product Assurance Integration Manager |
PAIT |
Program Analysis and Integration Team |
PALS |
Program Automated Library System |
PAM |
Payload Assist Module |
PAM |
Payload Accommodation Manager |
PAP |
Payload Activity Plan |
PAPL |
Program Approved Parts List |
PAPR |
Product Assurance Program Representative |
PARS |
Property Accountability Record System |
PASDE |
Photogrammetric Appendage Structural Dynamics Experiment |
PASR |
Product Assurance Source Representative |
PATS |
Payload Avionics Test Station |
PAYCOM |
Payload Command |
PAYDAT |
payload data |
PBA |
Portable Breathing Apparatus |
PBA |
pressurized berthing adapter |
PBM |
pressurized berthing module |
PC |
personal computer |
PC |
plasma contactor |
PC |
printed circuit |
PCA |
payload control areas |
PCA |
Pressure Control Assembly |
PCA |
Procurement Configuration Audit |
PCA |
Program Commitment Agreement |
PCB |
Parts/Program Control Board |
PCB |
Payload Control Board |
PCC |
Platform Control Center |
PCC |
Program Coordination Committee |
PCG |
protein crystal growth |
PCI |
product configuration identification |
PCM |
phase change material |
PCM |
program cost management |
PCMCIA |
Portable Computer Memory Card International Adapter |
PCR |
Payload Certification Review |
PCR |
Portable Computer Receptacle |
PCS |
Portable Computer System |
PCTS |
Program Correspondence Tracking System |
PCU |
power conditioning unit |
PCU |
Power Conversion Unit |
PD |
passive damper |
PD |
program directive |
PDA |
Portable Diagnostic Analyzer |
PDA |
Power Distribution Assembly |
PDA |
pressurized docking adapter |
PDAP |
Portable Data Acquisition Package |
PDBD |
Preliminary Design Baseline Directives |
PDCA |
power distribution and control assembly |
PDCS |
Procedure Development and Control System |
PDCU |
Power Distribution Control Unit |
PDDR |
product definition data requirements |
PDGF |
power and data grapple fixture |
PDIP |
Payload Data Interface Panel |
PDL |
Program Design Language |
PDM |
pressurized docking mast/mechanism |
PDM |
Program Development Methodology |
PDMA |
Pressurized Docking Mating Adapter |
PDMS |
Payload Data Management System |
PDO |
Performance Determination Official |
PDP |
Programmable Display Pushbutton |
PDR |
Preliminary Design Review |
PDRD |
Program Definition and Requirements Document |
PDRS |
payload deployment retrieval system |
PDS |
PRACA Data System |
PDSS |
Payload Data Services System |
PDU |
power distribution unit |
PDU |
prototype development unit |
PDV |
predelivery verification |
PE |
Photometer Electronics |
PE |
plasma effects |
PE |
preceding event |
PEB |
Performance Evaluation Board |
PEC |
Performance Evaluation Committee |
PEC |
plasma effects compatibility |
PEC |
Proposal Evaluation Committee |
PEDB |
Payload Engineering Data Base |
PEHG |
Payload Ethernet Hub Gateway |
PEM |
plastic encapsulated microcircuits |
PEO |
Polar Earth Orbit |
PEP |
Portable Emergency Provisions |
PEP |
Program Execution Plan |
PERB |
Performance Evaluation Review Board |
PERT |
Program Evaluation Review Technique |
PET |
phase elapsed time |
PF |
platform |
PF |
protoflight |
PFCS |
Pump/Flow Control Subassembly |
PFE |
portable fire extinguisher |
PFM |
pulse frequency modulation |
PFR |
Portable Foot Restraint |
PFU |
parts followup |
PG |
product group |
PGHM |
payload ground-handling mechanism |
PGOC |
Payload Ground Operations Contractor |
PGSC |
Payload General Support Computer |
PGSE |
payload ground-support equipment |
PGU |
Plant Growth Unit |
PH |
personal hygiene |
pH |
measure of acidity |
PHA |
Preliminary Hazard Analysis |
PHC |
Permanent Human Capability |
PHCP |
Payload Hazard Control Plan |
PI |
payload integrator |
PIA |
Payload Interface Adapter |
PIA |
Program Initiation Agreement |
PIC |
plume impingement contamination |
PID |
prime item development |
PIDG |
proportional, integral, and differential gain |
PIE |
Particle Impact Experiment |
PIM |
Payload Integration Manager |
PIMS |
Payload Information Management System |
PIMS |
Plasma Integration Monitoring System |
PIND |
particle impact noise detection |
PIO |
Program Integration Office |
PIO |
provisioned item order |
PIP |
Payload Integration Plan |
PIRN |
Preliminary/Proposed Interface Revision Notice |
PIT |
preintegrated truss |
PIU |
Power Interface Unit |
P/LC |
payload compartment |
PL/PL |
prelaunch/postlanding |
PLAN |
Payload Local Area Network |
PLB |
payload bay |
PLC |
pressurized logistic carrier |
PLH |
Payload Handling |
PLM |
payload/pressurized logistics module |
PLSS |
Payload Support Structure |
PLSS |
Portable Life Support System (subsystem) |
PLSS |
Primary Life-Support System |
PLT |
pilot |
PM |
Performance Monitor |
PM |
pressurized module |
PM |
preventive maintenance |
PM |
program manager |
PM |
propulsion module |
PMA |
platform management application |
PMA |
pressurized mating adapter |
PMA |
pump module assembly |
PMAA |
propulsion module attach assembly |
PMAD |
Power Management and Distribution |
PMAS |
Propulsion Module Attach Structure |
PMB |
Performance Measurement Baseline |
PMC |
Power Management Controller |
PMCU |
Power Management Controller Unit |
PMDS |
Power Management and Distribution System |
PMDU |
propulsion module development unit |
PMM |
Property Management Manual |
PMM |
Propulsion Module Manager |
PMP |
parts, materials, and processes |
PMP |
Program Management Plan |
PMPAC |
Portable Multipurpose Application Console |
PMPP |
Preventive Maintenance Prediction Program |
PMR |
Program Manager's Review |
PMRS |
Partial Medical Restraint System |
PMS |
Performance Measurement System |
PMS |
Platform Management System |
PMS |
Polar Meteorological Satellite |
PMS |
Program Master Schedule |
PMSR |
Performance Measurement System Report |
PMV |
pressure monitoring valve |
PN |
pseudonoise |
PNP |
Preliminary Network Plan |
PNP |
prenegotiation position |
PNP |
probability of no penetration |
PO |
Program Office |
PO |
purchase order |
POC |
point of contact |
POCC |
Payload Operations Control Center |
POCRFC |
Proof-of-Concept Rotary Fluid Coupler |
PODF |
Payload Operations Data File |
POIC |
Payload Operations Integration Center |
POIF |
payload operation integration function |
POL |
paints, oils, and lubricants |
POP |
period of performance |
POP |
perpendicular-to-orbit plane |
POP |
Program Operating Plan (POP-96) |
POP/IOP |
Program Operating Plan/Institution Operating Plan |
POPIS |
proximity operations plume impingement simulation |
pos |
position |
POST |
power-on self test |
POV |
proximity operations vehicle |
POWS |
Program Operating Work Statement |
POZ |
Proximity Operations Zone |
PP |
program procedure |
PP |
project plan |
PP&C |
Program Planning and Control |
PPA |
Pump Package Assembly |
PPAL |
Preliminary Preferred Parts List |
PPCO2 |
partial pressure of carbon dioxide |
PPF |
Payload Processing Facilities |
PPFR |
Powered Portable Foot Restraint |
PPL |
Plant Physiology Laboratory |
PPM |
primary propulsion manager |
ppm |
parts per million |
PPO2 |
partial pressure oxygen |
PPOC |
Platform Payload Operations Center |
PPOP |
Platform Payload Operations Plan |
PPR |
Payload Preparation Room |
PPRV |
positive pressure relief valve |
PPS |
Payload Pointing System |
PQA |
program quality acceptance |
PR |
Purchase Request |
PR&A |
Program Requirements and Assessment |
PRA |
Probabilistic Risk Assessment |
PRAB |
Program Risk Assessment Board |
PRACA |
Problem Reporting and Corrective Action |
PRAD |
Processor Resource Allocation Document |
PRCB |
Program Requirements Change Board |
PRCS |
Primary Reaction Control System |
PRD |
Program Requirements Document |
Priroda |
One of the modules of the Mir Orbiting Station |
PRL |
Program Requirements List |
Progress |
Russian unmanned resupply vehicle for Mir |
PRP |
personnel reliability program |
PRR |
Preliminary/Program Requirements Review |
PS |
payload scientist/specialist |
PS |
Personal System |
PS |
Platform Servicing |
PS/2 |
Personal System/2 |
PSA |
Preliminary Safety Analysis |
PSA |
provisions storage assemblies |
PSAT |
Predicted Site Acquisition Table |
PSC |
Payload Steering Committee |
PSC |
Platform Support Center |
PSC |
Program Support Communications |
PSCN |
Program Support Communications Network |
PSCN/I |
Program Support Communications Network/Interface |
PSCRD |
Program Support Communications Requirements Document |
PSF |
Power Systems Facility (LeRC facility) |
psi |
pounds per square inch |
psia |
pounds per square inch absolute |
psig |
pounds per square inch gage |
PSL |
Parts Selection List |
PSM |
Program Staff Manager |
PSP |
Program Support Plan |
PSRP |
Payload Safety Review Panel |
PSS |
Payload Specialist Station |
PSS |
Planning and Scheduling System |
PSS |
Polar Subsurface Sounder |
PST |
Planetary Spectroscopy Telescope |
PT |
push-to-talk |
PTA |
prototype test article |
PTA |
propellant tank assembly |
PTC |
payload training cabability |
PTCS |
Passive Thermal Control System/Subsystem |
PTFE |
Polytetrafluorethylene (Teflon) |
PWS |
Portable Work Station |
PY |
program year |
q |
quality factor |
QA |
quality assurance |
QAI |
Quality Assurance Instruction |
QD |
quick disconnect |
QDR |
Quality Discrepancy Report |
QF |
Quality Factor |
QM/FM |
qualification model/flight model |
QML |
qualified manufacturing line |
QMR |
Quick Medical Reference |
QPSK |
Quadriphase Shift Key |
QS |
Quality System |
QSA |
Qualification Site Approval |
QSD |
Quality Support/Systems Division |
QTA |
Qualification Test Article |
QTP |
Qualification Test/Procedure |
R&D |
research and development |
R&M |
reliability and maintainability |
R&QA |
reliability and quality assurance |
R&T |
research and technology |
Ra |
radium |
RACU |
Russian-American Converter Unit |
RAD |
Radiation Absorbed Dose |
RADALT |
radar altimeter |
RAFP |
Resource Allocation & Functional Partitioning |
RAFPP |
Resource Allocation & Functional Partitioning Panel |
RAM |
random access memory |
RAM |
Responsibility Assignment Matrix |
RAMIS |
Rapid-Access Management Information System |
RAMPAT |
Reliability and Maintainability Prediction and Notification Tool |
RAN |
Resource Allocation Notice |
RAS |
reference assembly sequence |
RB |
radiator bending |
RBC |
Recoverable ballistic capsule |
RBDA |
reliability block diagram analysis |
RBE |
relative biological effectiveness |
RBI |
Remote Bus Isolator |
RC |
Reference Configuration |
RC |
ring concentrator |
RCB |
Requirements Change Board |
RCM |
reliability centered maintenance |
RCS |
Reaction Control System/Subsystem |
RCU |
remote control unit |
RCU |
ring concentrator unit |
RD |
radiator drive |
RD |
Rocketdyne |
RDA |
Recommended Dietary Allowance |
RDB |
Relational/Requirements Data Base |
RDC |
Regional Data Center |
RDCS |
Reconfiguration Data Collection System |
RDD |
requirements definition document |
RDMA |
Risk Data Management Application |
RDRM |
Return Data Relay Measurement |
RDT&E |
research, development, test, and engineering |
RECP |
request for engineering change proposal |
REE |
Responsible Equipment Engineer |
REF |
reference |
REFCON |
Reference Configuration |
REM |
rocket engine module |
REM |
Roentgen Equivalent Man (unit of dost equivalent) |
REV |
revision |
RF |
radio frequency |
RIA |
Rack Interface Agreement |
RID |
review item discrepancy/disposition |
RIF |
request for information |
RIM |
Relational Information Management |
RJCC |
rotor joint command and control |
RJE |
remote job entry |
RJM |
resistojet module |
RJMC |
rotary joints motor controller/coupler |
RLA |
repair level analysis |
RLG |
ring laser gyro |
RLLS |
Russian Language and Logistics Support |
RLSC |
Russian Language Services Contract |
RLV |
Reusable Launch Vehicle |
RM |
remote manipulator |
RM |
Redundancy/Resource Management |
RM |
Research Module |
RMAT |
Reliability and Maintainability Assessment Tool |
RMDU |
remote multiplexer/demultiplexer unit |
RME |
Risk Mitigation Experiment |
RME |
responsible maintainability engineers |
RMPS |
Remote Manipulator Planning System |
RMS |
rate monotonic scheduling |
RMS |
record management system |
RMS |
remote manipulator system |
RMS |
Risk Management System |
RMS |
root mean square |
RN |
resource node |
RNA |
ribonucleic acid |
RNIU |
Remote/Redundant Network Interface Unit |
ROAM |
robotics ORU assembly and maintenance |
ROC |
Regional Operations Center |
ROD |
record of discussion |
RODB |
Runtime Object Data Base |
ROEU |
remotely operable electrical umbilical |
ROM |
read only memory |
ROM |
rough order of magnitude |
ROS |
regulated oxygen supply |
ROS |
removable overhead structure |
ROS |
Russian Orbital Segment |
ROTV |
Reusable Orbiter Transfer Vehicle |
RPC |
remote power converter/controller |
RPCM |
remote power control mechanism |
RPDA |
remote power distribution assembly |
RPDP |
Recoverable Plasma Diagnostics Package |
RPF |
Robotics Planning Facility |
RPL |
Rodent and Primate Laboratory |
RPS |
Remote Planning System |
RPSA |
Recovery Procedure Selection Application |
RPV |
Remotely Piloted Vehicle |
rqmt |
requirement |
RR |
Rendezvous Radar |
RRMD |
Realtime Radiation Monitor Device |
RS |
reference standard |
RS |
Robotic Servicer |
RS |
Russian Segment |
RSA |
Russian Space Agency |
RSC |
Remote Service Center |
RSC-E |
Rocket Space Corporation-Energia |
RSIS |
Robotic Systems Integration Standards |
RSS |
root-sum-square |
RSS |
Rotating Service Structure |
RST |
Russian Segment Trainer |
RSU |
rate sensor unit |
RSU |
roller suspension unit |
RT |
remote terminal |
RTE |
Real/Run Time Environment |
RTG |
Radioisotope Thermoelectric Generator |
RTHC |
rotation translation hand controller |
RTL |
Responsible Task Leader |
RTLS |
return to launch site |
RTM |
Requirements Traceability Manager |
rtn |
return |
RTOP |
Research and Technology Objectives and Plans |
RTS |
real-time subsystem |
RTS |
RID Tracking System |
RTV |
Room-Temperature Vulcanized |
RUM |
remote unit manipulator/monitor |
RUPSM |
Resource Utilization Planning/Systems Model |
RUR |
Reference Update Review |
RV |
routine verification |
RW |
roll wrapping |
RWA |
Reaction Wheel Assembly |
RWAM |
Reaction Wheel Assembly Module |
RWG |
Robotics Working Group |
SA |
Solar Array |
SA |
supplemental assembly |
SAA |
South Atlantic anomaly |
SAA |
subsystem architecture and analysis |
SAAM |
Science and Applications Mission |
SAB |
Space Applications Board |
SABB |
solar array blanket boxes |
SAE |
Solar Array Experiment |
SAEPL |
Space Station Approved EEE Parts List |
SAES |
Solar Array Electrical Simulator |
SAFER |
simplified aid for EVA rescue |
SAGE |
Stratospheric Aerosol and Gas Experiment |
SAI |
Systems Application Integration |
SAIS |
Science & Application Information System |
SAM |
servicing and maintenance |
SAMS |
Space Acceleration Measurement System |
SAP |
Service Access Point |
SAR |
Safety Analysis Report |
SAR |
software architecture review |
SAR |
specific absorption rate |
SAR |
synthetic aperture radar |
SARJ |
solar alpha rotary joint |
SAS |
Solar Array Simulator |
SAS |
Statistical Analysis System |
SASE |
Specific Application Software Elements |
SAT |
Servicing Aid Tool |
SAT |
single access transmitter |
SATE |
SDP application test environment |
SATS |
Satellite Automated Test System |
SATS |
Station Accommodation Test Set |
SB |
S-band |
SB |
small business |
SBA |
Small Business Administration |
SBA |
space-based antenna |
SBAR |
space-based antenna range |
SBB |
Satellite Busy Box |
SBF |
single barrier failure |
SBL |
space-based laser |
SC |
segment control |
SC |
stage/system configuration |
SC |
station commander |
SCA |
Shuttle Carrier Aircraft |
SCARA |
schedule, cost, and risk assessment |
SCAT |
scatterometer |
SCAT |
System Commonality Analysis Tool |
SCBA |
self contained breathing apparatus |
SCD |
specification control drawing |
SCDR |
Safety Compliance Data Report |
SCE |
signal conditioning equipment |
SCG |
Security Classification Guide |
SCG |
Solar Concentrator Group |
SCIM |
standard cubic inches per minute |
SCL |
space component lifetime |
SCM |
Software Configuration Management |
SCM |
spacecraft materials |
SCM |
space cargo modified |
SCMA |
Station Configuration Monitoring Application |
SCN |
Specification Change Notice |
SCP |
Systems Control Panel |
SCPMP |
Station Crew Procedures Management Plan |
SCR |
Schedule Change Request |
SCR |
solar cosmic radiation |
SCR |
space constructible radiator |
SCR |
system conceptual requirements |
SCS |
Satellite Control Section |
SCSI |
Small Computer System Interface |
SCTF |
Sonny Carter Training Facility |
SD |
support development |
SD |
solar dynamics |
SDB |
small disadvantaged business |
SDD |
software design documentation |
SDD |
software design document |
SDDD |
Software Detail Design Document |
SDDP |
Solar Dynamic Demonstration Project |
SDDU |
System Development and Diagnostic Unit |
SDE |
Software Development Environment |
SDFD |
Solar Dynamic Flight Demonstration |
SDIL |
Software Development Integration Lab |
SDIO |
serial digital input/output |
SDIO |
Strategic Defense Initiative Organization |
SDIP |
Systems Design and Integration Panel |
SDLC |
synchronous data link communication |
SDLT |
static/dynamic load technology |
SDLV |
Shuttle-Derived Launch Vehicle |
SDM |
Solar Dynamic Module |
SDM |
Subsystem/System Development Manager |
SDO |
solenoid driver output |
SDOM |
Station Development and Operations Meeting |
SDP |
Safety Data Package |
SDP |
Software Development Plan |
SDP |
Standard Data Processor |
SDP |
Standard/System Data Processor |
SDPF |
Science Data Processing Facility |
SDR |
Software Design Requirements |
SDR |
System Design Review |
SDS |
Satellite Data System |
SDT |
System Design Team |
SDTN |
Space and Data Tracking Network |
SDV |
Shuttle-Derived Vehicle |
SE |
Spectrometer Electronics |
SE |
support environment |
SE |
support equipment |
SE |
system engineer |
SE&A |
System Engineering and Analysis |
SE&I |
system engineering and integration |
SEAD |
Space Station Early Assembly Demonstration |
SEASAR |
Sea Synthetic Aperture Radar |
SEASAT |
Sea Surveillance Satellite |
SEB |
Source Evaluation Board |
sec |
second |
SEDB |
Support Equipment Data Base |
SEE |
single event effect |
SEI |
support equipment installation |
SEID |
support equipment item description |
SEIR |
Support Equipment Item Requirement |
SEL |
Systems Engineering Laboratory |
SEM |
Scanning Electron Microscopy |
SEM |
Sustaining Engineering Manager |
SEM |
System Engineering Manager |
SEMP |
Systems Engineering Management Plan |
SEMS |
Systems Engineering Master Schedule |
SEMU |
Short Extravehicular Mobility Unit |
SEP |
solar electric propulsion |
SEP |
solar energetic particles |
SEPAC |
Space Experiments with Particle Accelerators |
SEPS |
secondary/solar electric power system |
SERD |
support equipment requirements document |
SERR |
Support Equipment Requirements Review |
SERS |
Space Erectable Radiator System |
SES |
Shuttle Engineering Simulator |
SES |
Systems Engineering/Evaluation Simulator |
SESA |
Support Element Selection Algorithm |
SESL |
Space Environment Simulation Laboratory |
SETI |
Search for Extraterrestrial Intelligence |
SEU |
single-event upset |
SEUL |
Support Equipment Utilization List |
SF |
Servicing Facility |
SF |
standard form |
SFA |
Small Fine Arm |
SFCA |
System Flow Control Assembly |
SFDF |
Station Flight Data File |
SFDR |
System Functional Design Review |
SFE |
smart front-end |
SFE |
Static Feed Electrolysis |
SFF |
Small Formation Flyer |
SFHe |
superfluid helium |
SFM |
Service Facility Manipulator |
SFP |
single failure point |
SFP |
Summary Flight Plan |
SFPS |
Single Failure Point Summary |
SFTA |
software fault tolerance analysis |
SFU |
Space Flyer Unit |
SGAC |
space-to-ground antenna controller |
SGANT |
space-to-ground antenna |
SGBSP |
space-to-ground baseband signal processor |
SGE |
Strain Gage Electronics |
SGL |
space-to-ground link |
SHA |
system hazard analysis |
SHAPES |
Spatial, High-Accuracy Position Encoding Sensor |
SHARE |
Station Heatpipe Advanced Radiator Element |
SHF |
S-band high frequency |
SI |
science instrument |
SI |
solar inertial/intensity/international |
SI |
International System of Units |
SI&A |
Systems Integration and Avionics |
SI&T |
Software Integration & Test |
SIA |
solar inertial attitude |
SIA |
standard interface adapter |
SIA |
Station Interface Adapter |
SIB |
simulation interface buffer |
SIB |
Systems Integration Board |
SIC |
Standard Industrial Classification |
SIC |
Standard Interface Connector |
SICDH |
Scientific Instrument Computer and Data Handling |
SID |
selected item drawing |
SID |
Simulator Interface Device |
SID |
standard interface docurnent |
SIDD |
Servicing Implementation Definition Docurnent |
SIF |
Software Integration Facility |
SIF |
System Integration Facility |
SIGAda |
special interest group on Ada |
SIL |
Speech Interference Level |
SIL |
system integration laboratory |
SIM |
simulation |
SIM |
System Integration Manager |
SIMS |
Shuttle Inventory Management System |
SINDA |
Systems Improved Numerical Differencing Analyzer |
SiO2 |
silicon dioxide |
SIP |
Strategic Information Plan |
SIP |
systems integration panel |
SIPE |
Scientific Instrument Protection Enclosure |
SIPS |
Simulation Interface & Processing System |
SIS |
Simulator Interface Subsystem |
SIT |
Software Integration Test |
SIVT |
system integration verification and test |
SL |
Space Lab |
SLA |
Scanning Laser Altimeter |
SLASER |
Space Laser |
SLAW |
Station Logistics Analysis Worksheet |
SLC |
Shuttle Launch Complex |
SLC |
specialized logistics carrier |
SLD |
Simulated Launch Demonstration |
SLDPF |
Spacelab Data Processing Facility |
SLED |
System-Level Engineering Documentation |
SLF |
Shuttle Landing Facility |
SLIC |
Systems and Logistics Integration Capability |
SLOC |
source/standard lines of code |
SLS |
Spacelab Life Sciences |
SLSD |
Space and Life Sciences Directorate |
SLSR |
Service Level Status Report |
SM |
Service Module |
SM |
system manager/management |
SM&C |
Station Management and Control |
SM&F |
Structures, Mechanical and Fluid Systems |
SMA |
Science Monitoring Area |
SMAC |
Spacecraft Maximum Allowable Concentration |
SMAIT |
Subcontractor Management Analysis & Integration Team |
SMAP |
Software Management and Assurance Program |
SMART |
Safety and Mission Assurance Review Team |
SMARTS |
Spacecraft Mission Analysis Real-Time Simulator |
SMASE |
Shuttle/Mir Alignment Stability Experiment |
SMCE |
Secondary Mirror Control Electronics |
SMCH |
standard mixed cargo harness |
SMD |
Structures and Mechanics Division |
SMF |
Space Medical Facility |
SMF |
Superconducting Magnetic Facility |
SMMD |
Small Mass Measurement Device |
SMP |
Security/Software Management Plan |
SMPT |
Shuttle Main Propulsion Test |
SMR |
source, maintainability and recoverability |
SMR |
supportability, maintainability, and repairability |
SMS |
Separation Mechanism Subsystem |
SMS |
Service Manipulator System |
SMS |
Shuttle Mission Simulator |
SMTF |
Shuttle Mission Training Facility |
SN |
space network |
SNA |
Shaping Network Assembly |
SNA |
System Network Architecture |
SNDU |
Standard Network Data Unit |
SNLDU |
standard network layer data unit |
SNS |
SSIS Network Simulator |
SO |
station operator |
SOA |
systems operability assessment |
SOC |
System Operating Concept |
SOD |
start of development |
SOD |
statement of direction |
SODB |
Space Shuttle Operations Data Book |
SODF |
Systems Operations Data File |
SOHO |
Solar Heliosphere Observatory |
SOP |
Safety Operating Procedure |
SOP |
Standard/System Operating Procedure |
SOP |
System Operations Panel |
SOPC |
Shuttle Operations and Planning Center |
SOR |
stable orbit endezvous |
SOT |
systems operation testing |
SOT |
Structural Operations Technology |
SOW |
Statement of Work |
Soyuz |
Russian vehicle used to transport personnel to and from Mir |
SPA |
Small Payload Attachment |
SPACEHAB |
One of the ISS modules |
SPARC |
Standard Planning & Requirement Committee |
SPARS |
Safety/Product Assurance Requirements Specification |
SPAS |
Space Pallet Satellite |
SPASCOM |
Space Station cost model |
SPB |
Strategic Planning Board |
SPC |
secondary power controller |
SPC |
Service and Performance Checkout |
SPC |
Shuttle Processing Contractor |
SPC |
Supplier Product Control |
SPCE |
servicing performance and checkout equipment |
SPCS |
Service and Performance Checkout System |
SPCU |
service and performance checkout unit |
SPD |
serial parallel digital |
SPDA |
secondary power distribution assembly |
SPDD |
Software Preliminary Design Document |
SPDM |
special purpose dexterous manipulator |
SPDMS |
Shuttle Program Data Management System |
SPDR |
Software/Subcontractor Preliminary Design Review |
SPDS |
Secondary Power Distribution System |
SPDS |
shuttle/stabilized payload deployment system |
SPE |
Solar Particle Event |
SPEE |
special purpose end effector |
Spektr |
One of the modules of the Mir Orbiting Station |
SPEL |
Space Power Electronics Lab |
SPEX |
space plasma experiment |
SPF |
single-point failure |
SPF |
Software Production Facility |
SPF |
Space Power Facility |
SPF |
Spacelab Processing Facility |
SPF |
specific pathogen free |
SPI |
Schedule Performance Index |
SPIA |
Small Payload Interface Adapter |
SPIAP |
shuttle payload integration activities plan |
SPIP |
Station Program Implementation Plan |
SPL |
solar pumped laser |
SPL |
sound pressure level |
SPM |
solar power module |
SPMP |
Station Procedures Management Plan |
SPOC |
Shuttle Payload of Opportunity Carrier |
SPOC |
single point orbit calculator |
SPOT |
Space Station Proximity Operations Trainer |
SPP |
solar pumped plasma |
SPP |
Science Power Platform |
SPP&A |
Strategic Project Planning and Assessment |
SPPF |
Site Platform Processing Facility |
SPPF |
Spacehab Payload Processing Facility |
SPR |
Software Problem Report |
SPR |
Strategic Planning Review |
SPS |
Software Product Specification |
SPT |
solar panel technology |
SPTB |
secondary power test bed |
SQA |
Software Quality Assurance |
SQL |
structural query language |
SQUID |
Standard Quick Release Universal Interface Device |
SR |
safety and reliability |
SR |
service request |
SR |
status report |
SR |
Status Review |
SR |
System Requirement |
SR&QA |
Safety, Reliability, and Quality Assurance |
SRAM |
Static Random Access Memory |
SRB |
Software Review Board |
SRB |
Solid Rocket Booster |
SRC |
Specimen Research Centrifuge |
SRD |
System Requirements Document |
SRDCS |
Simulation Reconfiguration Data Collection Subsystem |
SRM |
Safety, Reliability, and Maintainability |
SRM |
Solid Rocket Motor |
SRM&QA |
Safety, Reliability, Maintainability and Quality Assurance |
SRMS |
Shuttle Remote Manipulator System |
SRP |
Safety Review Panel |
SRP |
standard repair procedure |
SRR |
Software Requirements Review |
SRR |
System Requirements Review |
SRS |
software requirements specification |
SRS |
supplemental reboost system |
SRT |
Station Redesign Team |
SRU |
shop replaceable unit |
SS |
space segment |
SS |
Space Station/Shuttle |
SS |
sun sensor |
SS |
System Specification |
SSA |
S-Band Single Access |
SSA |
Space Structure Assembly |
SSA |
Space Suit Assembly |
SSAD |
Structured Systems Analysis & Design |
SSAF |
S-Band, Single Access Forward |
SSAIAF |
Space Station Automated Integration and Assembly Facility |
SSAIT |
Space Station Analysis and Integration Team |
SSAR |
S-Band, Single Access Return |
SSAR |
Stereo Synthetic Aperture Radar |
SSAS |
segment-to-segment attach system |
SSAS |
solid sorbent air sampler |
SSAT |
Space Station assembly technology |
SSATA |
Space Station airlock test article |
SSB |
Source Selection Board |
SSBRP |
Space Station Biological Research Project |
SSC |
Space Station Complex |
SSCB |
Space Station Control Board |
SSCBD |
Space Station Control Board Directive |
SSCC |
Space Station Control Center |
SSCE |
Space Station core equipment |
SSCM |
Space Station Change Memo |
SSCN |
Space Station Change Notice |
SSCP |
small self-contained payload |
SSCR |
Space Station change request |
SSCS |
Space to Space Communications System |
SSCTS |
Space Station Communications and Tracking System |
SSD |
Space Station Division |
SSD. |
Sun-Synchronous Day/Night |
SSDMS |
Space Station Data Management System |
SSDS |
Space Station Data System |
SSDS/AA |
Space Station Data System/Analysis Architecture |
SSE |
software support environment |
SSE |
Solar System Exploration |
SSE |
Space Station element |
SSE |
space support equipment |
SSE |
sun sensor electronics |
SSEIC |
Space Station Engineering Integration Contractor |
SSEMU |
Space Station Extravehicular Mobility Unit |
SSETS |
Space Station Element Transportation System |
SSF |
S-Band Shuttle forward |
SSFF |
Space Station Furnace Facility |
SSG |
Servicing Scenario Generator |
SSH |
S-Band Shuttle |
SSHA |
space system hazard analysis |
SSHC |
Space Station hand controller |
SSHPF |
Space Station Hazardous Processing Facility |
SSICB |
Space Station Integration Control Board |
SSIF |
Space Station Integration Facility |
SSIPC |
Space Station Integrated Promotion Center (NASDA) |
SSIR |
Space Station Integration Review |
SSIS |
Space Station Information System |
SSL |
system specification language |
SSM |
Spacecraft Systems Monitor |
SSM |
Subsystem Manager |
SSM |
Subsystem/Systems Support Module |
SSM |
Support System Module |
SSMB |
Space Station Manned Base |
SSMDM |
Space Station Multiplexer/Demultiplexer |
SSME |
Space Shuttle Main Engine |
SSMES |
Systems Support Module Equipment Section |
SSMI |
Special Sensor Microwave Imager |
SSMTF |
Space Station Man-Systems Training Facility |
SSMTF |
Space Station Mockup and Test/Training Facility |
SSMVP |
Space Station Master Verification Plan |
SSMVPR |
Space Station Master Verification Process Requirements |
SSMVR |
Space Station Master Verification Requirements |
SSO |
Source Selection Official |
SSOC |
Space Station Operations Center |
SSODB |
Space Station Operations Data Book |
SSOL |
Space Station Operation Language |
SSP |
Space Station Program |
SSP |
Space Shuttle Program |
SSPAO |
Space Station Safety Product Assurance Office |
SSPF |
Space Station Processing Facility |
SSPIF |
Software Support Production Integration Facility |
SSPM |
Schedule Statusing and Performance Measurement |
SSPM |
Software Standards and Procedures Manual |
SSPM |
Space Station Pricing Model |
SSPO |
Space Station Program Office |
SSPP |
Space Station program participant |
SSQ |
Space Station Quality |
SSR |
S-Band Shuttle Return |
SSR |
Software Specification Review |
SSRB |
Senior Safety Review Board |
SSRFAR |
Space Station Research Facility Assessment Review |
SSRMS |
Space Station Remote Manipulator System |
SSRPOS |
Space Station Rendezvous and Proximity Operations Simulator |
SSS |
solid state switch |
SSS |
space-to-space subsystem |
SSSA |
Space Station Solar Array |
SSSAA |
Space Station Solar Array Assemblies |
SSSAS |
Space Station Systems Analysis Study |
SSSC |
Space Station Support Center/Complex |
SSSF |
Space Station Support Facility |
SSSM |
System Support Service Module |
SSSP |
Space Station Safety Program |
SSSR |
Space To Space Station Radio |
SSST |
Space Station Systems Trainer |
SST |
Satellite Servicing Technology |
SST |
Spacecraft Systems Test |
SST |
Supersonic Transport |
SSTC |
Space Station Training Center |
SSTF |
Space Station Training Facility |
SSTMF |
Space Station Training and Mockup Facility |
SSTP |
System Supporting Test Plan |
SSU |
Sequential Shunt Unit |
SSUAS |
Space Station Utilization Advisory Subcommittee |
SSUB |
Space Station Utilization Board |
SSUIS |
Space Station User Information System |
SSUWG |
Space Station Users Working Group |
SSVTF |
Space Station Verification and Training Facility |
ST |
special tooling |
STA |
service track assembly |
STA |
Science and Technology Agency (Japan) |
STA |
Star Tracker assembly |
STA |
structural test article |
STAR |
Scientific and Technical Report |
STARS |
Space Transportation Accounting and Resources System (KSC) |
STD |
software test description |
STD |
standard |
STDN |
Space Tracking and Data Network |
STE |
special test equipment |
STel |
Standard Telecommunications |
STF |
Simulation and Training Function |
STI |
Scientific and Technical Information |
STO |
Solar Terrestrial Observatory |
STP |
short term plan |
STP |
Space Test Program |
STP |
standard temperature and pressure |
STR |
Starboard Thermal Radiator |
STRAP |
Station Reboost Analysis Program |
STS |
Space Transportation System |
STU |
science, technology, and utilization |
STV |
Space Transfer Vehicle |
SUL |
software usage list |
SUM |
science utilization management |
SUP |
supply |
SURR |
Stage Unique Requirements Report |
SURS |
Standard Umbilical Retractor System |
SUSIM |
Solar Ultraviolet Spectral Irradiance Monitor |
SV |
schedule variance |
TA |
Teleoperator Assembler |
TA |
test article |
TA&A |
translation aids and attachments |
TACAN |
Tactical Air Navigation |
TAG |
Technology Advocacy Group |
TAL |
transatlantic abort landing |
TAM |
Technology Area Manager |
TAT |
turnaround time |
TAV |
Transatmospheric Vehicle |
TAVERNS |
Test and Verification Environment for Remotely Networked Systems |
TBD |
to be determined |
TBR |
to be resolved/revised |
TBS |
to be specified/supplied |
TBT |
total body temperature |
TBU |
Telemetry Buffer Unit |
TC |
thermal Control |
TCCS |
Trace Contaminant Control System |
TCE |
thermal conditioning electronics |
TCFT |
TUS copper-fiber transceiver |
TCIP |
Technical and Configuration Integration Panel |
TCMS |
Test Control and Monitoring System |
TCP |
Transmission/Transport Control Protocol |
TCR |
Technical Cost Review |
TCS |
Technical Change Summary |
TCS |
Thermal Control System |
TCS |
trajectory control sensor |
TCSS |
Thermal Conditions Support System |
TD |
technical direction/directive |
TD&D |
Technical Data and Documentation |
TD/CD |
Technical Direction/Contract Direction |
TDAS |
Test Data Analysis System |
TDASS |
Tracking and Data Acquisition Satellite System |
TDB |
time distribution bus |
TDC |
transition document change |
TDD |
Test Documentation Drawing |
TDL |
Transparent Datalink |
TDM |
Technology Development Mission |
TDM |
time division multiplexed |
TDR |
time domain reflectometer |
TDR |
tracking data relay |
TDRS |
Tracking and Data Relay Satellite |
TDRSS |
Tracking and Data Relay Satellite System |
TDS |
Test Description Sheet |
TDY |
temporary duty |
TE |
technical evaluation |
TE |
test enclosure |
TE |
thermoelectric |
TE/WAX/RAD |
thermoelectric/wax/radiator |
TEA |
torque equilibrium attitude |
TEAMS |
Technology Experiments Advancing Missions in Space |
TEEM |
Two-Phase Extended Evaluation in Microgravity |
TEF |
thermal electric freezer |
TEHOF |
Thermal Electric Holding Facility |
TEMP |
temperature/temporary |
TEMP |
thermal energy management process |
TEP |
Team Execution Plan |
TEPC |
Tissue Equivalent Proportional Counter |
TEPS |
Telerobotic Electrical Power Subsystem |
TES |
test execution software |
TEU |
thermoelectric unit |
TeV |
tera-electron volts |
TFDU |
thin-film disposition unit |
TFU |
theoretical first unit |
TGS |
Time Generation System |
TGU |
time generation unit |
THA |
Total Hydrocarbon Analyzer |
THC |
temperature and humidity control |
THEME |
Terrestrial Hardware Engineered for the Microgravity Environment |
TI |
transition initialization |
TID |
Traveling Ionospheric Disturbance |
TIG |
time of ignition |
TIM |
technical interchange meeting |
TIMS |
Thermal Infrared Mapping Spectrometer |
TIP |
Technical Integration Panel |
TIP |
thrust inlet pressure |
TIPS |
Technical Information Processing System |
TL |
termination liability |
TL |
thermoluminescent |
TLCSC |
top level computer software component |
TLF |
test logic flow |
TLM |
telemetry |
TLP |
transmission level point |
TLV |
threshold limit value |
TM |
task/technical manager |
TM |
technical manual |
TMA |
Technical Management Area |
TMDE |
Test. Measurement and Diagnostic Equipment |
TMG |
thermal model generator |
TMIS |
Technical and Management Information System |
TML |
total mass loss |
TMM |
Thermal Math Model |
TMMCH/Y |
total mean maintenance crew hours per year |
TMS |
task/technical/test management system |
TMS |
teleoperator maneuvering system |
TMS |
test measurement system |
TMS |
thermal maneuvering system |
TN |
TDRSS Network |
TO |
task order |
TO |
technical officer |
TOC |
Test Operation Center |
TOC |
total organic carbon |
TOL |
Telemetry Object List |
TOMRS |
Test, Operations and Maintenance Requirements and Specifications |
TOMS |
Task Order Management System |
TOP |
Tactical Operations Plan |
TOPCAT |
total program cost analysis tool |
TOS |
Transfer Orbit Stage |
TP |
teleprocessing |
TPA |
Test Planning Analysis |
TPC |
technical performance criteria |
TPC |
Telemetry Preprocessing Computers |
TPEP |
Transition Program Execution Plan |
TPF |
Terminal Phase Final |
TPI |
Terminal Phase Initiation |
TPITS |
Two-Phase Integrated Thermal System |
TPM |
Technical Performance Measurement |
TPM |
Technical Program Measurement |
TPM |
terminal phase midcourse |
TPP |
top program problem |
TPR |
Team of Primary Responsibility |
TPR |
Terminal Phase Rendezvous |
TPS |
Technical Planning Sheet |
TPS |
test preparation sheet |
TPS |
Thermal Protection System |
TQI |
Total Quality Involvement |
TQM |
Total Quality Management |
TR |
test report |
TRASYS |
Thermal Radiation Analyzer System |
TRB |
test review board |
TRC |
transmitter-receiver-controller |
TRD |
test requirements document |
TREP |
Tropical Rainfall Experiment Package |
TRIC |
Transition Radiation and Ionization Calorimeter |
TRMM |
Thermal Radiation Math Model |
TRR |
Technical Requirements Review |
TRR |
Test Readiness Review |
TRR |
Thermal Radiator Rotation |
TRRB |
Test Readiness Review Board |
TRRJ |
thermal radiator rotary joint |
TSA |
test start approval |
TSC |
thermal shape control |
TSC |
tradeoff study control |
TSCV |
test setup, configuration, and verification |
TSO |
Time-Sharing Option |
TSP |
Twisted Shielded Pair |
TSR |
Technical Status/Support Review |
TSS |
Tethered Satellite System |
TSS |
tradeoff study suggestion |
TsUP |
Russian Mission Control Center in Kaliningrad |
TT&C |
Telemetry, Tracking and Communications |
TTA |
technical task agreement |
TTB |
thermal test bed |
TTC |
Telemetry Traffic Control |
TTCP |
Technology Transfer Control Plan |
TTI |
Tech Trans International |
TTL |
transistor-to-transistor logic |
TTN |
Threshold Task Number |
TTRT |
target token rotation time |
TTS |
temporary threshold shift (hearing) |
TTS2 |
temporary threshold shift measured 2 minutes after exposure |
TTY |
teletype |
TURF |
transport utilization requirements faction |
TUS |
trailing umbilical system |
TV |
television |
TVCIC |
television camera interface controller |
TVS |
thermal vacuum stability |
TVT |
thermal vacuum testing |
U&O |
utilization and operations |
U/S |
user/station |
UBA |
unpressurized berthing adapter |
UBIC |
Universal Bus Interface Controller |
UBM |
unpressurized berthing mast/mechanism |
UCD |
urine collection device |
UCP |
Utilization Control Panel |
UCTR |
UHF communication transmitter-receiver |
UDFR |
user defined functional requirements |
UDM |
Universal Docking Module |
UDM |
unpressurized docking mast |
UDMH |
unsymmetrical dimethyldrazine |
UDS |
utility distribution system |
UE |
user equipment |
UF |
utility/utilization flight |
UHF |
ultrahigh frequency |
UI |
user integration/interface |
UIC |
User Identification Code |
UIDB |
user interface data base |
UIE |
User Interface Environment |
UIL |
User/Utility Interface Language |
UIS |
User Interface System |
ULBC |
universal local bus controller |
ULC |
unpressurized logistics carrier |
ULCAS |
unpressurized logistics carrier attach system |
ULE |
unpressulized logistics element |
ULT |
ultimate (loads) |
UMA |
umbilical mechanism assembly |
UMDB |
User Mission Data Base |
UNSR |
Unclassified National Security Related |
UOC |
Usable On Codes |
UOF |
User Operations Facility |
UOF |
utilization outfitting |
UOIF |
User Operations Interface Function |
UOP |
utility outlet port |
UOP |
Utilization Operations Panel |
UOS |
User Operations Support |
UOTAT |
Utilization, Operations, and Training Assessment Team |
UPDM |
unpressuIized docking mast |
UPN |
Unique Project Number |
UPR |
Unit Performance Record |
UPS |
uninterrupted power supply |
URD |
User Requirements Document |
UVR |
ultraviolet radiation |
UWTF |
Underwater Test Facility |
V |
volts |
V&V |
verification and validation |
V-BAR |
Orbit Velocity-Vector |
VA |
vehicle analysis |
VAB |
Vehicle Assembly Building |
VAC |
volts (Alternating Current) |
VAC |
Variance at Completion |
VAFB |
Vandenberg Air Force Base |
VAIT |
Vehicle Analysis and Integration Team |
VAMS |
Vibroacoustic Monitoring System |
VAPEPS |
vibroacoustic payload environment prediction system |
VAS |
Validation System |
VAT |
Value Added Tax |
VATA |
Vertical Assembly and Test Area |
VATF |
Vertical Assembly Test Facility |
VAX |
Virtual Address Extension |
VBSP |
video baseband signal processor |
VC |
virtual channel |
VC |
voice circuit |
VCA |
virtual channel access |
VCB |
Vehicle Control Board |
VCD |
vapor-compression distillation |
VCDU |
Virtual Channel Data Unit |
VCG |
vapor crystal growth |
VCM |
volatile condensable material |
VCN |
Verification Completion Notice |
VCR |
Video Cassette Recorder |
VCRC |
Voice Circuit Reconfiguration Confirmation |
VCRR |
Voice Circuit Reconfiguration Request |
VCS |
Video Compression System |
VDB |
Verification Data Base |
VDC |
volts (direct current) |
VDPU |
Video and Data Processing Unit |
VDS |
Vehicle Dynamics Simulator |
VDS |
video distribution subsystem |
VDT |
Visual Display Terminal |
VER |
Variance Exception Report |
VER |
verification |
VES |
Vehicle Effectiveness and Safety |
VF |
verification fixture |
Vg |
vacuum gage |
VHF |
very high frequency |
VHOL |
Very High Order Language |
VHS |
Video Home System |
VHSIC |
Very-High-Speed Integrated Circuit |
VI |
vehicle integration |
Vi |
internal velocity |
VIC |
Vehicle Identification Code |
VIC |
video interface controller |
VIP |
Verification Integration Plan |
VIPT |
Vehicle Integrated Product Team |
VIR |
Verification Implementation Requirement |
VIR |
Visible Infrared Radar |
VIS |
verification information system |
VIS |
vibration isolation system |
VIS/UV |
visual/ultraviolet |
VITS |
Video Teleconferencing System |
VLA |
verification loads analysis |
VLBI |
Very Long Baseline Interferometry |
VLF |
very low frequency |
VLN |
Verification Logic Network |
VLSI |
Very Large-Scale Integration |
VLSIC |
Very Large-Scale Integrated Circuit |
VLSID |
Very Large-Scale Integrated Device |
VLV |
valve |
VM |
virtual memory |
VMDB |
Vehicle Master Database |
VMS |
Velocity Measuring System |
VMS |
Virtual Memory System |
VOA |
volatile organic analyzer |
VOC |
volatile organic concentrator |
VOIR |
Venus Orbiting Imaging Radar |
VPF |
Vertical Processing Facility |
VPPA |
variable polarity plasma arc |
VRA |
volatile removal assembly |
VRCS |
Vector/Vernier Reaction Control System |
Vrms |
volts root-mean-square |
VRTS |
Verification Requirements Tracking System |
VS |
Vacuum System |
VS |
virtual storage |
VS&A |
vibrations, shock, and acoustics |
VSW |
video switch |
VT |
vehicle tests |
VTAM |
Virtual Telecommunications Access Method |
VTAR |
Verification Test/Analysis Reports |
VTB |
verification test bed |
VTC |
Vital Telemetry Telecommand Computer |
VTR |
video tape recorder |
VTS |
verification tracking system |
VTS |
Voice Teleconferencing System |
VUV |
vacuum ultraviolet |
VV |
visiting vehicle |
VVIG |
Visiting Vehicle Integration Group |
W |
watt |
w/o |
without |
WAD |
Work Authorization Document |
WAN |
Wide Area Network |
WB |
wideband |
WBGT |
wet bulb globe temperature |
WBS |
Work Breakdown Structure |
WCS |
Waste Control System |
W/D |
Wet/Dry Index |
WETF |
Weightless Environment Training Facility |