Author Topic: Expedition 24 thread (June 2 - September 24, 2010) - Includes ETCS Updates  (Read 184904 times)

Offline psloss

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Per Kyle Herring, the astronauts performing today's development NBL training run will be Suni Williams and Cady Coleman.

Tomorrow, the STS-133 EV crew of Al Drew and Tim Kopra will do a second NBL run based on feedback from the first run.
« Last Edit: 08/02/2010 03:16 PM by psloss »

Offline psloss

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Now replaying some of the audio from the events Saturday evening.

It sounds like it starts a little earlier than all the audio that Rob provided for us over the weekend.
« Last Edit: 08/02/2010 03:26 PM by psloss »

Online jacqmans

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MEDIA ADVISORY: M10-106

NASA SETS BRIEFING TO PREVIEW UPDATED SPACE STATION SPACEWALK PLAN

HOUSTON -- NASA managers will discuss updated plans for two
International Space Station spacewalks during a news briefing at 3
p.m. CDT on Monday, Aug. 2. The briefing replaces one originally
scheduled for Tuesday.

The news conference from NASA's Johnson Space Center in Houston will
air live on NASA Television and the agency's website. Journalists may
ask questions from participating NASA locations.

The briefers are:
- Michael Suffredini, manager, International Space Station Program
- Courtenay McMillan, Expedition 24 spacewalk flight director

Expedition 24 Flight Engineers Doug Wheelock and Tracy Caldwell Dyson
are scheduled to perform two spacewalks. The two NASA astronauts will
replace an ammonia coolant pump that failed July 31.

Engineers and flight controllers continue to review data on the
failure, which resulted in the loss of one of two cooling loops
aboard the station. This caused a significant power down and required
adjustments to provide the maximum redundancy possible for station
systems. The systems are stable, and the six crew members aboard are
not in any danger.

Wheelock and Caldwell Dyson originally were scheduled to perform a
spacewalk to outfit the Russian Zarya module for future robotics work
and prepare the station for the installation of a new U.S. permanent
multipurpose module. However, because of the importance of restoring
redundancy to the station's cooling and power systems, Thursday's
spacewalk will be dedicated to the pump module replacement. Another
spacewalk will be scheduled a few days later to complete the repairs.


NASA TV coverage of the 15th U.S. spacewalk from the station will
begin at 5 a.m. on Thursday, Aug. 5. Wheelock and Caldwell Dyson are
expected to begin the spacewalk from the Quest airlock at 5:55 a.m.
It will be Wheelock's fourth spacewalk and Caldwell Dyson's first.


Offline psloss

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Now replaying some of the audio from the events Saturday evening.

It sounds like it starts a little earlier than all the audio that Rob provided for us over the weekend.
Kyle Herring provided some additional context for the audio replay; the condensed audio covered the period from about 18:47 to 20:24 Central time on Saturday.  (For reference, yesterday's ISS status report notes that "RPC1 (Remote Power Controller 1) in RPCM (RPC Module) S11A_D tripped open" at 18:48 Central.)
« Last Edit: 08/02/2010 03:54 PM by psloss »

Offline Space Pete

For anyone wondering, here's an image showing the location of the S1 PM:
Electronic Engineer by day, NASASpaceflight's ISS Editor by night | Read my NASASpaceflight articles here

Offline arkaska

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Do anyone know what the other "big 14" is?

Offline John44

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Offline rdale

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Tracy somehow set up a conference with World Classic Rockers, and plenty of greats are on the line.

http://www.wcr.com/page.cfm

You can watch it on the ISS live video stream.

They mentioned that they've been talking with her via email for a while, and went to hear launch. They are in Houston now and she must have arranged a trip to JSC.
« Last Edit: 08/02/2010 05:55 PM by rdale »

Offline GoForTLI

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Do anyone know what the other "big 14" is?

I'm curious myself.  I searched yesterday and didn't come up with a list, but I need to familiarize myself better with the ISS resources that are available on L2. 

A quick google search showed the existence of a Stage Contingency EVA list (also known as the "Big 14") that came out of the ACFIT.  ACFIT = Assembly Critical Failure Investigation Team.     
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Offline rdale

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DPC: "The EVA procedures you sent up were NBL, will we have better stuff?"

"Tomorrow will be revised based on today's NBL but still preliminary. We hope to have better stuff for you Wednesday."

"I certainly hope so!"

Offline rdale

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"When will Shannon receive words on Robotics for EVA?"

"We're hoping to get preliminary work tomorrow."

Offline rdale

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"What sort of space-to-ground conference do you need? We want to do one before sleep tomorrow, but we won't have our full team because they'll still be at the pool. Tomorrow's will include lessons learned from today. Does that sound good?"

"Sounds great, who is running the NBL tomorrow?"

Offline AndrewSTS

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Do anyone know what the other "big 14" is?

I'm curious myself.  I searched yesterday and didn't come up with a list, but I need to familiarize myself better with the ISS resources that are available on L2. 


Some awesome presentations in L2, Rob linked up some of them in the thread where the memos are being posted. Those new MOD Training Presentations are coming in useful too :)

Online Chris Bergin

About to begin. Whoa, need help with screenshots....

Have an article ready to go, will wait to see if there's a late update.

Online Chris Bergin

Do anyone know what the other "big 14" is?

I'm curious myself.  I searched yesterday and didn't come up with a list, but I need to familiarize myself better with the ISS resources that are available on L2. 


Some awesome presentations in L2, Rob linked up some of them in the thread where the memos are being posted. Those new MOD Training Presentations are coming in useful too :)

Yeah, included some slides into the upcoming article too.

Offline rdale

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Presser:

Mike S recapping, I can't type enough to add all his details unless he says something new.

Ops team did great job reconfiguring vehicle after the loss.
« Last Edit: 08/02/2010 08:10 PM by rdale »

Offline rdale

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Once we were stable, ops team tried to reactivate the pump in case it was a momentary glitch but the circuit breaker tripped right away. Data suggests motor and impeller are not frozen, it started to pump, so short in the power feed between controller and motor. All of that is in Pump Module.

Offline rdale

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Once we saw loads on systems that are not being cooled, were able to bring some stuff back. Only one CMG and one MDM offline at this point. We're actually fairly close to nominal today mechanically. Some payload racks are offline, MELFI1 is offline but MELFI2 has had power for all but a short period (and it has a 8hr poweroff limit which we never got near.)

Offline psloss

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There's the spares answer: four, all on-orbit.

This ORU can fly on HTV and SpaceX.
« Last Edit: 08/02/2010 08:13 PM by psloss »

Offline rdale

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Since next failure of PM would be significant, we'll R&R. 4 spares on orbit, and that's all we have. We can fly the PM on HTV or SpaceX if we need to fly again, but all spares currently up there.

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