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STS-102: Home | The Crew | Cargo | Timeline | EVA

International Space Station Assembly Flight 5A.1

IMAGE: Workers examine Leonardo.
(Left to right) Astronaut Chris Hadfield, Salimbeti Andrea of Alenia Aerospazio, Astronaut Winston Scott and Astronaut Robert Curbeam examine the interior of the Multi-Purpose Logistics Module Leonardo in the Space Station Processing Facility.

Cargo Bay Payloads:

Leonardo Multi-Purpose Logistics Module
The Leonardo Multi-Purpose Logistics Module, which was built by the Italian Space Agency (ASI), is the first of three such pressurized modules that will serve as the International Space Station's "moving vans," carrying laboratory racks filled with equipment, experiments and supplies to and from the station aboard the space shuttle.

The unpiloted, reusable logistics modules function as both a cargo carrier and a space station module when they are flown. Mounted in the space shuttle's cargo bay for launch and landing, they are berthed to the station using the shuttle's robotic arm after the shuttle has docked. While berthed to the station, racks of equipment are unloaded from the module and then old racks and equipment may be reloaded to be taken back to Earth.

On STS-102, Leonardo will be filled with equipment and supplies to outfit the U.S. Destiny Laboratory Module, which was delivered by STS-98. The MPLM is a pressurized module that carries to orbit six U.S. Laboratory System Racks, Resupply Stowage Platforms (RSP), Resupply Stowage Racks and a Human Research Facility (HRF) rack. The racks and RSPs contain crew rotation hardware, avionics hardware, spare hardware, stowage items, Crew Health Care System (Checs) items, the ISS ergometer, Mobile Servicing System (MSS) Robotic Workstation (RWS) equipment and HRF experiment unique equipment.

Integrated Cargo Carrier
The Integrated Cargo Carrier, or ICC, is an externally mounted, unpressurized, aluminum flatbed pallet, coupled with a keel-yoke assembly, that expands the shuttle's capability to transport cargo.

On STS-102, the ICC is the carrier which transports the Early Ammonia Servicer, the Rigid Umbilical, The Lab Cradle Assembly with the Module to Truss Structure Attach System -A, the Pump Flow Control Assembly and the External Stowage Platform.

In-Cabin Payloads

DTO 700-14 - Single String Global Positioning System
The purpose of the Single String Global Positioning System DTO is to evaluate the performance of a Global Positioning System, or GPS, receiver being developed for operational use by the shuttle. The Miniaturized Airborne GPS Receiver was designed and manufactured by Rockwell Collins for military aircraft. It has been modified to work in the space environment, and communicate with the shuttle's computers. GPS data will be downlinked during all mission phases. When development, flight test and certification activities are complete, two more GPS receivers may be added to provide a fully redundant replacement for existing Tactical Air Navigation systems, and improve orbiter capabilities for orbit and entry navigation.

What is a payload?
IMAGE: Shuttle payload bay
The formal designation as a "payload" indicates that the experiment will be accorded top priority in crew time and energies during the entire flight, along with all other experiments carrying the same "payload" designation.
Related Links
*STS-102 KSC Electronic Photo File
*Payload Overview (Shuttle Presskit)

Curator: Kim Dismukes | Responsible NASA Official: John Ira Petty | Updated: 04/07/2002
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