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  Soyuz TMA-08M: Viewing, comments, questions

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Author Topic:   Soyuz TMA-08M: Viewing, comments, questions
Robert Pearlman
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Posts: 27709
From: Houston, TX
Registered: Nov 1999

posted 03-08-2013 04:55 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
Soyuz TMA-08M: mission viewing, questions, comments
This thread is intended for comments and questions about the Soyuz TMA-08M mission and the updates published under the topic: Soyuz TMA-08M mission to the space station.

TMA-08M will launch three crew members for the Expedition 35 crew on board the International Space Station: Roscosmos cosmonauts Pavel Vinogradov and Aleksandr Misurkin, and NASA astronaut Chris Cassidy.

TMA-08M will be the 117th flight of a Soyuz spacecraft since its first flight in 1967.

jasonelam
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From: Monticello, KY USA
Registered: Mar 2007

posted 03-13-2013 04:29 PM     Click Here to See the Profile for jasonelam   Click Here to Email jasonelam     Edit/Delete Message   Reply w/Quote
Does the quicker rendezvous method use more fuel than the slower one?

Robert Pearlman
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posted 03-26-2013 08:25 AM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
I believe the burn durations, and therefore fuel requirements, are the same, they just occur on a tighter schedule.

Speaking of the same, launch preparations continue as normal. Soyuz TMA-08M was rolled out to the launch pad today (as shown in the status thread) but this video, posted by NASA on Monday (March 25), shows some of the crew activities leading up to the roll out (including their visit to the Baikonur museum).

Headshot
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From: Streamwood, IL USA
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posted 03-26-2013 10:25 AM     Click Here to See the Profile for Headshot   Click Here to Email Headshot     Edit/Delete Message   Reply w/Quote
Does anyone know if the Soyuz has the fuel margin to effect rendezvous with the ISS in a single orbit?

Gemini XI and several Apollo lunar module ascent stages were able to accomplish this, but their "target" vehicles were in much lower orbits than the ISS.

Robert Pearlman
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From: Houston, TX
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posted 09-13-2013 10:53 AM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
AFP is reporting that the crew of TMA-08M "endured a hair-raising descent after their height sensors failed," according to commander Pavel Vinogradov.
"There were problems. For some reason after the undocking all our parameters disappeared. Essentially, after the undocking, we flew blind," he said at the Star City cosmonaut training centre outside Moscow, quoted by Russian news agencies.

He said that the only data the crew could receive about their approach to the earth -- crucial for knowing when to fire the engines to soften the landing -- came from the salvage team on the ground.

He said the rescue teams were able to radio to the crew that they were 300 metres (1,000 feet) and then 100 metres (330 feet) from the ground in the Soyuz capsule, which lands vertically with the help of a parachute after reentering the atmosphere.

"I managed to count eight seconds and we touched down very softly," he said, adding that aside from the usual G-forces and jolting "everyone felt normal".

Robert Pearlman
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From: Houston, TX
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posted 09-13-2013 05:08 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
NASA spokesman Rob Navias told SPACE.com "the crew was in no danger."
"What I can tell you is that the crew doesn't fly the Soyuz," Navias said. "They're passive. This thing about flying blind has to do with their situational awareness of altimeter data based on what appears to have been a sensor issue that prevented them from seeing data onboard."

Because the astronauts were unable to follow their altitude from readings in the cockpit, recovery crews on the ground kept them updated with information being relayed to them from Russian Mission Control.

"The bottom line is, the Soyuz performed as it was expected to," Navias said. "There were no issues with the vehicle performance, it was just the crew's insight into altimeter data that they can't do anything about anyway... It really was a minor issue."

Robert Pearlman
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Posts: 27709
From: Houston, TX
Registered: Nov 1999

posted 09-14-2013 12:21 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
Fantastic new photo from NASA's Bill Ingalls:

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