International Space Station Flight UF-2
Remote Servicer Base System
The Mobile Remote Servicer Base System, or MBS, is the second
part of the International Space Station's three-piece Mobile Servicing
System. The MBS is a work platform that moves along rails on the
International Space Station's Integrated Truss Structure. It will
provide lateral mobility for Canadarm2, the station's robot arm,
as it traverses the main trusses.
The MBS is
slated to be attached to the Mobile Transporter on Flight Day
6. STS-111 spacewalkers will make power, data and video cable
connections and bolt it to the transporter during the mission's
second spacewalk on Flight Day 7. On Flight Day 8, the MBS will
be checked out.
The Leonardo Multi-Purpose Logistics Module will be making
its third trip to the International Space Station during STS-111.
Leonardo is one of three Multi-Purpose Logistics Modules, or MPLMs,
built by the Italian Space Agency that serve as pressurized, reusable
cargo carriers to ferry supplies, equipment and experiments between
the ground and the space station.
Leonardo will contain about 2,540 kilograms (5,600 pounds) of
cargo. It will also contain eight Resupply Stowage Racks, five
Resupply Stowage Platforms, two International Stowage Racks and
two new scientific experiment racks for the station. The new science
rack, EXPRESS Rack 3, will increase the orbital outpost's science
capabilities. The other scientific rack is the Microgravity Science
Glovebox. Other cargo includes supplies and equipment for the
station's new residents, the Expedition Five crew.
will be lifted out of Space Shuttle Endeavour's cargo bay and
installed onto the station's Unity Node on Flight Day 4. The MPLM,
which will be filled with items returning to Earth, is scheduled
to be returned to the payload bay on Flight Day 10.