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Tracy Young
Kennedy Space Center, Fla.

NASA's Space Shuttle Processing Status Report
Note: NASA's Kennedy Space Center issues Space Shuttle Processing Status Reports periodically and is the source for information regarding processing activities associated with the vehicles and payloads. This report does not necessarily reflect the chronological order of future space shuttle missions. If you are a member of the media and would like further information, visit:

Mission: STS-121 - 18th International Space Station Flight (ULF1.1) - Multi-Purpose Logistics Module
Vehicle: Discovery (OV-103)
Official Launch Date/Time: July 4, 2006 at 2:38 p.m.
Expected KSC Landing Date/Time: July 17 at about 9:07 a.m.
Crew: Lindsey, Kelly, Sellers, Fossum, Nowak, Wilson and Reiter
Inclination/Orbit Altitude: 51.6 degrees/122 nautical miles

Today is flight day 11 for STS-121. Discovery is docked to the International Space Station. The multi-purpose logistics module containing supplies and equipment for the space station has been unloaded and transferred from its station port back to Discovery's payload bay as the crew prepares for undocking. The crew will also conduct an imagery survey of the orbiter's left wing. Discovery is scheduled to undock from the station early Saturday morning.

Mission: STS-115 - 19th International Space Station Flight (12A) - P3/P4 Solar Arrays
Vehicle: Atlantis (OV-104)
Location: Orbiter Processing Facility Bay 1
Launch Date: No earlier than Aug. 28, 2006
Launch Pad: 39B
Crew: Jett, Ferguson, Tanner, Burbank, MacLean and Stefanyshyn-Piper
Inclination/Orbit Altitude: 51.6 degrees/122 nautical miles

In Orbiter Processing Facility bay 1, workers are busy preparing Atlantis for rollover to the Vehicle Assembly Building, currently scheduled for the last week of July. Final gap filler and tile work is under way. The payload bay doors are closed for rollover. The orbiter main engine and maneuvering systems are configured for rollover. Close-out work in the forward section of the orbiter continues. On Monday, Atlantis will be powered down for rollover.

In high bay 3 of the Vehicle Assembly Building, close-out work is under way to mate the solid rocket boosters to ET-118, the external fuel tank for STS-115.

Endeavour (OV-105)

Powered-up system testing continues on Endeavour in Orbiter Processing Facility bay 2 following an extensive modification period. Functional testing of the atmosphere revitalization pressure control system is under way. This system maintains crew module pressure during flight. Tile processing work continues around the external tank doors and nose landing gear doors. Gap filler removal and replacement continues in the high priority areas of the orbiter's heat shield. Helium system leak and functional tests of the main propulsion system are under way. Workers are installing the star trackers in Endeavour; these are deployed during flight for guidance and navigation. All reinforced carbon-carbon panels have been installed on both wing leading edges.