[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

ISS STATUS REPORT #04-36




    Submitt by Arthur - N1ORC - Amsat #31468


*International Space Station Status Report #04-36*
*10:30 p.m. CDT, Wednesday, June 30, 2004*
*Expedition 9 Crew*

The second time was the charm for two International Space Station 
spacewalkers tonight as they moved with ease to restore power to a key 
control system, completed a series of bonus jobs to get ahead on future 
work, and finished up ahead of schedule.

The spacewalk went smoothly from the moment NASA ISS Science Officer 
Mike Fincke and Commander Gennady Padalka exited the airlock hatch, 
starting outside 20 minutes early. It was the second spacewalk for the 
two. An initial attempt was halted last week after only a few minutes 
due to a balky spacesuit oxygen control handle on Fincke's suit. 
Tonight, Fincke and Padalka spent five hours and forty minutes outside 
of the Station.

The two space-age electricians completed the primary task -- installing 
a new circuit breaker to restore power to one of four gyroscopes that 
help orient the complex -- an hour ahead of schedule. Mission Control 
confirmed the gyroscope had power and appeared to be operating well a 
few minutes later. It is expected to be restored to full operation, 
assisting in controlling the Station's orientation, as early as Thursday 
afternoon.

Communications with the ground and between the two spacewalkers were 
constant throughout the night. Backup hand signals were never needed. It 
was the first time that the primary control of a spacewalk had 
transitioned between controllers in Moscow and Houston periodically in a 
well-choreographed operation that was conducted seamlessly. All Station 
systems operated flawlessly in an autonomous configuration while both 
crew members were outside during the spacewalk.

Padalka and Fincke left the Station at 4:19 p.m. CDT. The duo moved 
smoothly from the Russian Pirs airlock along a 50-foot-long cargo crane 
and a series of handrails, and reached the American-built modules of the 
outpost at 5:09 p.m. CDT. At that time, primary control of the spacewalk 
transferred from Mission Control, Moscow, to Mission Control, Houston.

Flight controllers in Houston helped guide the spacewalkers to their 
worksite on the starboard truss structure and monitored their progress 
in replacing a Remote Power Control Module (RPCM) that had failed April 
21. By 6:52 p.m. CDT, Padalka and Fincke had swapped the faulty circuit 
breaker with a working unit. Fifteen minutes later, Spacecraft 
Communicator Rex Walheim conveyed the good news that power had been 
restored to the gyroscope. The gyroscope was tested to a speed of 30 
revolutions per minute as a preliminary verification of its health. It 
is planned to be spun to 6,600 rpm tomorrow, its normal operating speed, 
and brought on line to assist in stabilizing the Station.

Fincke and Padalka cleaned up tools and headed back to the Russian 
segment of the Station and, by 8:11 p.m. CDT, Mission Control, Houston, 
handed primary coordination back to Mission Control, Moscow. Upon 
returning to the Pirs airlock, the spacewalkers completed get-ahead 
tasks that had been planned for future spacewalks. They installed two 
flexible handrails, mounted a contamination monitor to measure Station 
thruster exhaust, and added end caps to two circular handrails on the 
airlock.

The crew closed the hatch and ended the spacewalk at 9:59 p.m. CDT. This 
was the 54th spacewalk in support of Station assembly and maintenance, 
the 29th staged from the Station itself, the fourth for Padalka in his 
career and Fincke’s second.

Information on the crew's activities aboard the Space Station, future 
launch dates, as well as Station sighting opportunities from anywhere on 
the Earth, is available on the Internet at:

http://spaceflight.nasa.gov/

Details on Station science operations can be found on an Internet site 
administered by the Payload Operations Center at NASA's Marshall Space 
Flight Center in Huntsville, Ala., at:

http://scipoc.msfc.nasa.gov/

The next ISS status report will be issued Thursday afternoon or as 
events warrant.

- END -




----
Via the sarex mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe sarex" to Majordomo@amsat.org



AMSAT Top AMSAT Home