5 a.m. CST Saturday, Feb. 20, 2010
Mission Control Center, Houston, Texas
STS-130 MCC Status Report #25
HOUSTON – Space shuttle Endeavour undocked from the International Space Station at 6:54 p.m. CST after a visit totaling nine days, 19 hours and 48 minutes.

Endeavour delivered the final addition to the U.S. segment, the Tranquility node, along with the cupola, an observatory module that will be used for scientific observations of Earth and celestial bodies, and as a robotics control room. The station is now 98 percent complete by volume, 90 percent by mass.

After undocking, shuttle Pilot Terry Virts moved the shuttle to 400 feet ahead of the station, and then flew a full circle around it while camera-wielding shuttle crew members and cameras in Endeavour’s payload bay focused on documenting the state of the station with Tranquility and the cupola.

After the fly-around, Virts executed two burns of Endeavour’s jets to maneuver the shuttle behind the station and leave the area. Later, Endeavour crew members began the late inspection of its thermal protection system using the Orbiter Boom Sensor System. Commander George Zamka, Mission Specialists Kathryn Hire, Stephen Robinson, and Nicholas Patrick and Virts worked in shifts to examine the reinforced carbon-carbon panels and heat shield tiles on the starboard wing, nose cap and port wing.

Tomorrow is to be the last full day of orbital activities for the STS-130 crew and will focus on landing preparations. Zamka, Virts and Robinson will check out Endeavour’s flight control systems and steering jets to make sure they’re ready for re-entry.

Landing for Endeavour is planned to take place at 9:16 p.m. on Sunday at Kennedy Space Center, weather permitting.

The crew's bedtime is 6:14 a.m. as it adjusts for scheduled entry on Sunday. The wakeup call is set for 2:14 p.m. The JSC Newsroom will close at 5 a.m. and reopen at 3 p.m. The next status will be issued after the crew awakens, or earlier if events warrant.

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