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Glossary of NASA Acronyms and Abbreviations

ADSF     Automated Directional Solidification Furnace
AFSCN    Air Force Satellite Control Network
A/L      Approach and Landing
ALT      Approach and Landing Test (Program)
AMU      Astronaut Maneuvering Unit
AOA      Abort Once Around
APS      Alternate Payload Specialist
APU      Auxiliary Power Unit
ARC      Aggregation of Red Blood Cells
ASE      Airborne Support Equipment
ATE      Automatic Test Equipment
ATO      Abort to Orbit

BFC      Backup Flight Control (System)
BOC      Base Operations Contract

CAPCOM   Capsule Communicator
CCAFS    Cape Canaveral Air Force Station 
CCMS     Checkout, Control and Monitor Subsystem
CCTV     Closed Circuit Televison
CDR      Commander
CDMS     Command & Data Management Systems Officer
CDS      Central Data System
CFES     Continuous Flow Electrophoresis System
CIC      Crew Interface Coordinator
CIE      Communications Interface Equipment
CITE     Cargo Integration Test Equipment
CTS      Call to Stations

DCC      Data Compution Complex
DCR      Design Certification Review
DCS      Display Control System
DIG      Digital Image Generation
DFI      Development Flight Instrumentation
DFRF     Hugh L. Dryden Flight Research Facility
DMC      Data Management Coordinator
DMOS     Diffusive Mixing of Organic Solutions
DOD      Department of Defense
DOP      Diver Operated Plug
DPS      Data Processing System

EAFB     Edwards Air Force Base
ECLSS    Environmental Control & Life Support System
EECOMP   Electrical, Environmental & Consumables Systems Engineer
EI       Entry Interface
ELRAD    Earth Limb Radiance
EMU      Extravehicular Mobility Unit
ESA      European Space Agency
ESMC     Eastern Space and Missile Center
ET       External Tank
EVA      Extravehicular Activity
FAO      Flight Activities Officer
FAWG     Flight Assignment Working Group 
FBSC     Fixed Base Crew Stations
F/C      Flight Controller
FCT      Flight Crew Trainer
FCTS     Flight Crew Trainer Simulator
FD       Flight Director
FDF      Flight Data File
FDO      Flight Dynamics Officer
FOD      Flight Operations Directorate
FOE      Flight Operations Engineer
FOPG     Flight Operations Planning Group
FOSO     Flight Operations Scheduling Officer
FR       Firing Room
FRC      Flight Control Room
FRCS     Forward Reaction Control System
FRF      Flight Readiness Firing
FRR      Flight Readiness Review
FSE      Flight Simulation Engineer
FSS      Fixed Service Structure

GAS      Getaway Special
GC       Ground Control
GDO      Guidance Officer
GLS      Ground Launch Sequencer
GN       Ground Network
GNC      Guidance, Navigation & Control Systems Engineer 
GPC      General Purpose Computer
GSE      Ground Support Equipment
GSFC     Goddard Space Flight Center

HAC      Heading Alignment Circle
HB       High Bay 
HMF      Hypergolic Maintenance Facility
HPPF     Horizontal Payloads Processing Facility 
HUS      Hypergolic Umbilical System

IECM     Induced Environment Contamination Monitor
IEF      Isoelectric Focusing Experiment
IG       Inertial Guidance
ILS      Instrument Landing System
IMF      In Flight Maintenance
IMU      Inertial Measurement Unit 
INCO     Instrumentation & Communications Officer
IRCFE    Infrared Communications Flight Experiment
IRIG     Interrange Instrumentation Group
ISP      Integrated Support Plan
IUS      Inertial Upper Stage
IVA      Intravehicular Activity

JPL      Jet Propulsion Laboratory
JSC      Lyndon B. Johnson Space Center
KSC      John F. Kennedy Space Center
LC       Launch Complex
LCC      Launch Control Center
LCS      Launch Control System
LDEF     Long Duration Exposure Facility
LETF     Launch Equipment Test Facility
LOX      Liquid Oxygen
LPS      Launch Processing System
LSA      Launch Services Agreement
LWG      Logistics Working Group

MBCS     Motion Base Crew Station
MCC      Mission Control Center
MD       Mission Director
MDD      Mate/Demate Device 
ME       Main Engine
MECO     Main Engine Cutoff
MET      Mission Elapsed Time
MLE      Mesoscale Lightning Experiment
MLP      Mobile Launch Platform
MLR      Monodisperse Latex Reactor
MLS      Microwave Landing System
MMACS    Maintenance, Mechanical Arm & Crew Systems Engineer
MMPSE    Multiuse Mission Payload Support Equipment 
MMSE     Multiuse Mission Support Equipment
MMU      Manned Maneuvering Unit
MOD      Mission Operations Directorate
MOP      Mission Operations Plan
MPGHM    Mobile Payload Ground Handling Mechanism
MPPSE    Multipurpose Payload Support Equipment
MPS      Main Propulsion System
MS       Mission Specialist
MSBLS    Microwave Scanning Beam Landing System 
MSCI     Mission Scientist
MSFC     George C. Marshall Space Flight Center
MSS      Mobile Service Structure
MST      Mobile Service Tower
MUM      Mass Memory Unit Manager

NASCOM   NASA Communications Network 
NBT      Neutral Buoyancy Facility
NIP      Network Interface Processor
NOCC     Network Operations Control Center
NSRS     NASA Safety Reporting System
NSTL     National Space Technology Laboratories
NSTS     National Space Transportation System

OAA      Orbiter Access Arm
OC       Operations Coordinator
O&C      Operations and Checkout (Building)
OAST     Office of Aeronautics & Space Technology 
OFI      Operational Flight Instrumentation
OFT      Orbiter Flight Test
OMBUU    Orbiter Midbody Umbilical Unit 
OMRF     Orbiter Maintenance & Refurbishment Facility 
OMS      Orbital Maneuvering System
OPF      Orbiter Processing Facility
OSF      Office of Space Flight
OSS      Office of Space Science
OSSA     Office of Space Science and Applications
OSTA     Office of Space and Terrestrial Applications
OV       Orbiter Vehicle

PACE     Prelaunch Automatic Checkout Equipment
PAM      Payload Assist Module
PAYCOM   Payload Command Coordinator
PCG      Protein Crystal Growth Experiment
PCR      Payload Changeout Room
PDRS     Payload Deployment & Retrieval System
PGHM     Payload Ground Handling Mechanism
PHF      Payload Handling Fixture
PIP      Payload Integration Plan
PLSS     Portable Life-Support Subsystem
PLT      Pilot
POCC     Payload Operations Control Center
POD      Payload Operations Director
PPE      Phase Partitioning Experiment
PRC      Payload Changeout Room
PRF      Parachute Refurbishment Facility
PRSD     Power Reactant Storage & Distribution
PS       Payload Specialist 
PVTOS    Physical Vapor Transport of Organic Solids

R&D      Research Development
RCS      Reaction Control System
RMS      Remote Manipulator System
RPS      Record Playback Subsystem
RSS      Rotating Service Structure
RTLS     Return to Launch Site 

SAEF     Spacecraft Assembly & Encapsulation Facility
SAIL     Shuttle Avionics Integration Laboratory
SCA      Shuttle Carrier Aircraft
SCAMMA   Station Conferencing & Monitoring Arrangement
SCAPE    Self-Contained Atmospheric Protection Ensemble
SID      Simulation Interface Device
SIP      Standard Interface Panel
SIT      Shuttle Interface Test
SL       Spacelab
SLF      Shuttle Landing Facility
SMAB     Solid Motor Assembly Building
SMCH     Standard Mixed Cargo Harness
SMS      Shuttle Mission Simulator
SN       Space Network
SPIF     Shuttle Payload Integration Facility
SPOC     Shuttle Portable On-Board Computer
SRB      Solid Rocket Booster
SRBDF    Solid Rocket Booster Dissassembly Facility
SRM      Solid Rocket Motor
SRM&QA   Safety, Reliability, Maintainability & Quality Assurance
SSC      John C. Stennis Space CenterSSCP     Small Self-Contained Payload
SSIP     Shuttle Student Involvement Program
SSP      Standard Switch Panel
SSME     Space Shuttle Main Engines
SST      Single System Trainer
STA      Shuttle Training Aircraft
STS      Space Transportation System

T        Time
TACAN    Tactical Air Navigation
TAEM     Terminal Area Energy Management
TAL      Trans-Atlantic Abort Landing
TDRS     Tracking and Data Relay Satellite
TPAD     Trunnion Pin Acquisition Device
TPS      Thermal Protection System
TSM      Tail Service Mast

UHF      Ultra-high Frequency
UV       Ultra-violet

VAB      Vehicle Assembly Building
VLF      Very Low Frequency
VPF      Vertical Processing Facility

WCS      Waste Collection System
WSMC     Western Space & Missile Center
WSMR     White Sands Missile Range
WSSH     White Sands Space Harbor

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Curator: Kim Dismukes
Responsible NASA Official: John Ira Petty