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STS-101, Mission Control Center
Status Report # 09 Tuesday,
May 23, 2000 - 6 a.m. CDT
Atlantis' crew
ventured into the International Space Station for the first time last
night, finding the 35-ton outpost comfortable, clean and in overall
good condition as they completed a series of maintenance tasks well
ahead of schedule.
Astronaut Susan
Helms and Cosmonaut Yury Usachev were the first crew members to enter
the station as they opened the first of five station hatches at 7:03
p.m. CDT Monday. Helms and Usachev then opened the hatch into the station's
Unity connecting module a half-hour later and were quickly joined by
Astronaut Jim Voss. Voss, Helms and Usachev are scheduled to live aboard
the station for more than four months next year as the second resident
station crew. Helms and Usachev next entered the Zarya module at 7:53
p.m. CDT and opened the final station hatch, accessing Zarya's main
compartment, at 7:58 p.m. The crew went to work in the modules immediately,
placing ducting throughout the station to improve air circulation and
prevent problems with stale air that were experienced during a mission
last year. Because of problems reported by the crew of that previous
mission, STS-96 in May 1999, the ducting was modified for this flight
and Atlantis' crew has reported no problems with air circulation.
Maintaining a pace
hours ahead of schedule, Helms and Usachev replaced two of six batteries
in the Zarya module along with some associated battery-charging electronics.
Two additional fresh batteries will be installed on successive days
of the mission. This morning, station controllers in Moscow have begun
charging the first of the two newly installed batteries, finding it
functioning perfectly thus far. The crew also installed three fresh
fire extinguishers in Zarya, replacing three that were nearing the end
of their design life. Inside the Unity module, Pilot Scott Horowitz
and Mission Specialist Jim Voss replaced a power distribution box for
a United States-built communications system. The crew also inspected
the station for signs of condensation or mold, finding all areas clean
and dry.
Aboard Atlantis,
Mission Specialist Mary Ellen Weber readied more than a ton of supplies
-- ranging from sewing kits and trash bags to an exercise treadmill
and IMAX film camera -- for transfer to the station beginning this evening.
The crew also began filling several water containers that will be left
aboard the station as well to await future resident station astronauts.
The crew will begin
a sleep period at 7:41 a.m. CDT and awaken for Day 6 of the mission
at 3:41 p.m. CDT. This evening, Commander Jim Halsell will fire Atlantis'
steering jets 27 times over an hour to boost the average altitude of
the station by about nine statute miles. A similar process will be repeated
twice more later in the mission to increase the station's average altitude
by a total of about 27 statute miles before Atlantis departs. The higher
altitude will aim the International Space Station toward the optimum
orbit for a link up with the Russian Zvezda living quarters module planned
for launch in July.
The Atlantis and
station complex are now in an orbit with a high point of 208 statute
miles and a low point of 204 statute miles, circling Earth each 91 minutes.
The next status report will be issued at 7 p.m.
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