Following a crew farewell ceremony at 11:36 p.m. CDT, hatches between the spacecraft were closed at 12:14 a.m. CDT, with Discovery's undocking planned for 2:24 a.m. CDT Saturday morning.
"The Air Force Song" was the Shuttle crew wake-up song for the day, played at 9:09 p.m. CDT. The song was dedicated to Pilot Jim Kelly, a colonel in the U.S. Air Force, at the request of Commander Eileen Collins. Space Station Expedition 11 crewmates John Phillips and Sergei Krikalev woke 30 minutes later.
After Discovery undocks from the Station, with Kelly at the controls, the Shuttle will fly around the Space Station about 400 feet away to allow the Shuttle crew to take photographs of the complex.
The flyaround maneuver will begin at 2:54 a.m. CDT, and Discovery's final separation from the Station begins with an engine firing at 4:09 a.m. CDT.
The majority of the rest of the day will be free time for Discovery and the Station crew.
Discovery's crew, including Collins, Kelly and Mission Specialists Steve Robinson, Soichi Noguchi, Andy Thomas, Wendy Lawrence and Charlie Camarda, is scheduled for sleep at 11:39 a.m. CDT Saturday.
The Station crew, which will soon begin working back toward its normal workday hours, is scheduled to sleep at 1:09 p.m. CDT.