STS-125/HST SM-4 Status Report No. 20 (Forwarded)

STS-125 MCC Status Report #20
Mission Control Center, Houston, Texas
Thursday, May 21, 2009, 2:30 a.m. CDT

The crew of Atlantis will spend the day preparing the shuttle for tomorrow's
return home. The crew woke up this morning at 2:04 a.m. CDT to "Cantina
Band," one of composer John Williams' songs from the soundtrack to "Star
Wars." The song was played for the entire crew.

Commander Scott Altman, Pilot Greg Johnson and Mission Specialist Megan
McArthur will check out the flight control surfaces of Atlantis, including
the rudder and the wing flaps at 5:11 a.m. Those surfaces will guide the
shuttle's unpowered flight through the atmosphere to a landing. Immediately
afterward, at 6:21 a.m., the astronauts will test fire Atlantis' reaction
control system thrusters. The thrusters will control the shuttle's
orientation as it descends and begins its re-entry through the atmosphere.

Mission Specialists Mike Good, John Grunsfeld, Mike Massimino and Drew
Feustel will begin stowing away everything inside Atlantis and preparing the
shuttle for the return trip. Landing is targeted for 9:01 a.m. tomorrow at
the Kennedy Space Center in Florida.

After lunch, the crew will talk with Senator Barbara Mikulski and other
members of the U.S. Senate at 11:31 a.m. At 1:41 p.m., the crew will talk
with reporters from ABC, FOX, CBS, NBC and CNN.

The crew is due to go to sleep at 5:01 p.m. and will wake at 1:01 a.m. to
begin the procedures for landing. The next status report will be issued at
the end of the crew's day or earlier if events warrant.