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More Details for 2004-07-01

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Flight controllers today fully revved up a gyroscope on the International Space Station that spacewalkers brought back to life Wednesday. They plan to return it to the set of gyroscopes controlling the Station's orientation Friday morning.

After a normal, slow ramping up of speed over several hours, the newly restored Control Moment Gyroscope 2 reached its normal peak spin rate of 6,600 revolutions per minute at about 1:30 p.m. CDT. Engineers plan to perform tests overnight to further monitor the gyroscope's operation. The gyroscope will then join the other two CMGs currently controlling the Station's attitude.

Expedition 9 Commander Gennady Padalka and Flight Engineer and NASA ISS Science Officer Mike Fincke successfully replaced the failed circuit breaker providing power to the gyroscope during a 5-hour, 40-minute spacewalk Wednesday. Today the crew had a short, off-duty day. Russian flight controllers used air from the Progress cargo craft's supply tanks for a normal repressurization of the complex today, replacing air that had been vented overboard to allow the airlock to be opened for the spacewalk. The crew will work on additional spacewalk clean-up tasks Friday.