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STS-108, Mission Control Center
Status Report # 19
Friday, Dec. 14, 2001 – 8 p.m. CST
The crews of Endeavour
and the International Space Station will spend a final night together
tonight, preparing for Endeavour's departure from the complex Saturday.
Endeavour will
leave the station with a new crew and almost three tons of new food,
supplies, experiments and equipment. Endeavour will bring home the offgoing
Expedition Three station crew -- Commander Frank Culbertson, Pilot Vladimir
Dezhurov and Flight Engineer Mikhail Tyurin -- and more than two tons
of unneeded station gear, food containers, clothes, and other cargo.
The station's Expedition Four crew -- Commander Yury Onufrienko and
Flight Engineers Dan Bursch and Carl Walz -- will remain aboard the
outpost until May 2002.
Endeavour Pilot
Mark Kelly used the shuttle's robotic arm to detach the Raffaello logistics
carrier from the station today and reberth it in Endeavour's payload
bay. Raffaello was latched back into the shuttle bay at 4:44 p.m. CST.
This morning, Dezhurov and Onufrienko worked together to replace a faulty
air conditioner compressor in the station's Zvezda living quarters module
as the crews completed cargo transfer activities.
Flight controllers
are planning slight changes to Endeavour's departure from the station
Saturday, allowing time for a small jet firing by the shuttle to boost
the station's future path away from a piece of space debris that could
pass near the complex on Sunday. Mission Control was notified early
today that a spent Russian rocket upper stage launched in the 1970s
could pass within three miles of the station if Endeavour did not perform
the engine firing. With the shuttle reboost now planned on Friday, the
station is predicted to instead pass more than 40 miles away from the
debris on Sunday.
The new plan for
Saturday's activities will have the station and shuttle crews bid farewell
to one another and close hatches between the two spacecraft at about
7:30 a.m. CST. Endeavour will pulse its steering jets gradually for
about 30 minutes beginning at about 8:55 a.m. CST to raise the station's
altitude by almost three-quarters of a mile. Endeavour will then undock
from the station at about 10:37 a.m. CST. Because of the changes, Endeavour
will not perform a full-circle flyaround of the station after undocking.
Instead, Endeavour will undock from the station and fly only a quarter
circle of the complex, to a point about 400 feet directly above the
station where it will fire its engines at about 11:20 a.m. CST to depart
the vicinity of the oribting outpost.
Endeavour's crew
will begin a sleep period today at 8:19 p.m. CST and awaken at 4:17
a.m. CST Saturday. The next Mission Control Status report will be issued
at about 5 a.m. CST Saturday or as events warrant.
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