SUBMITTED BY ARTHUR N1ORC - AMSAT A/C #31468
*Oxygen Generation System Producing Oxygen*
ISS015-E-15680 --- Clay Anderson with a spacesuit in the Quest Airlock of the ISS image above: Astronaut Clay Anderson, Expedition 15 flight engineer, poses with an Extravehicular Mobility Unit spacesuit in the Quest Airlock of the International Space Station. Image credit: NASA TO VIEW IMAGE GO TO: http://www.nasa.gov/mission_pages/station/main/index.html
The U.S. Oxygen Generation System (OGS) is up and running and producing oxygen. After a day of fits and starts with the new system Thursday, environmental systems officers spent Thursday night resetting software system limits on fluid flow and sensor readings that caused multiple shutdowns of the OGS Thursday. Perseverance paid off Friday morning when the ECLSS console reported that the OGS had passed all of its tests and was producing oxygen as planned. The OGS is running in a "test mode." It is expected to be shut off over the weekend. Flight controllers plan to turn the OGS on periodically, probably once a month, until the point two years from now when it will be turned on to support a six-person crew.
The crew is also continuing preparations for the spacewalk on July 23 by Flight Engineer Clay Anderson and Commander Fyodor Yurchikhin.
The three crew members performed calf volume and body mass measurements. These tests provide a rough index of body deconditioning in zero-gravity and the effectiveness of countermeasures.
An error condition in the EarthKAM camera required early termination of the current session.
Yurchikhin continued work on the Russian computers, while Flight Engineer Oleg Kotov continued gathering and transferring excess equipment and trash to the ISS Progress 24.
+ Read more about Expedition 15 http://www.nasa.gov/mission_pages/station/expeditions/expedition15/index.html + View crew daily timelines http://www.nasa.gov/mission_pages/station/timelines/index.html