Author Topic: LIVE: Expedition 20 first spacewalk - June 5, 2009  (Read 46147 times)

Offline anik

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Expedition 20 commander Gennadiy Padalka and flight engineer-1 Michael Barratt will perform Russian spacewalk (VKD-22) in new Orlan-MK spacesuits from Pirs airlock on June 5.

Quote from http://www.nasa.gov/directorates/somd/reports/iss_reports/

"In preparation for the first Russian Orlan EVA-22 on 6/5, CDR Padalka & FE-1 Barratt had two hours set aside for studying uplinked material on the EVA timeline plus hardware setup & bundling for the spacewalk.
[EVA-22 is scheduled to start at 2:45am EDT (06:45 UTC - anik) for an approximate duration of 5h 32m. Its three main objectives are:
1. Installing & connecting KURS-P system antennas (4AO-VKA, AR-VKA and 2AR-VKA - anik) on the SM,
2. Photographing the installed antennas, and
3. Removing the Container III of the Biorisk-MSN experiment on the DC1.]"
« Last Edit: 06/05/2009 06:29 am by anik »

Offline catfry

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #1 on: 05/21/2009 08:57 pm »
Is this the first spacewalk in the new Orlan type?

Offline anik

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #2 on: 05/22/2009 04:06 pm »
Is this the first spacewalk in the new Orlan type?

Yes. I was told they will use Orlan-MK spacesuits #5 (Padalka) and #6 (Barratt). But I doubt and think that #4 will be used instead of #6.

Offline anik

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #3 on: 05/25/2009 05:44 pm »
But I doubt and think that #4 will be used instead of #6

I was wrong and should trust my sources. :)

Activating & inspecting Orlan-MK spacesuits #5 (CDR, red stripe) & #6 (FE-1, blue stripe)
« Last Edit: 06/03/2009 04:00 pm by anik »

Offline jacqmans

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #4 on: 06/01/2009 06:23 pm »
MEDIA ADVISORY: M09-100

NASA SETS PREVIEW BRIEFING, TV SCHEDULE FOR STATION SPACEWALKS

HOUSTON -- Two residents of the International Space Station will
conduct a pair of spacewalks in the coming weeks to prepare the
Russian segment of the station for future assembly work. The
activities will be broadcast live on NASA Television and previewed in
a briefing originating from NASA's Johnson Space Center in Houston on
Thursday, June 4, at 8:30 a.m. CDT.

The briefing participants are:

- Courtenay McMillan, Expedition 20 lead flight director, Johnson
Space Center
- David Korth, Expedition 20 EVA flight director, Johnson Space Center


Expedition 20 Commander Gennady Padalka and Flight Engineer Mike
Barratt will don Russian spacesuits June 5 for a spacewalk out of the
Pirs docking compartment's airlock. NASA TV coverage of the spacewalk
will begin at 1:15 a.m. Barratt and Padalka are expected to exit the
airlock to begin their exterior work at 1:45 a.m. The spacewalk will
prepare Pirs for the arrival of a new Russian module called the
Mini-Research Module 2, or MRM2, which will be launched later this
year on a Russian booster. The MRM2 will serve as an additional
docking port for Russian vehicles. The spacewalk is planned to last
five and a half hours.

On June 10, Padalka and Barratt will again don Russian suits and
depressurize the transfer compartment between the Zvezda service
module and the Zarya module. They will perform a one-hour interior
spacewalk that will set the stage for the MRM2's launch and automated
linkup. Television of the internal spacewalk is not expected, but
NASA TV will broadcast live commentary beginning about 1:15 a.m. The
internal depressurization of the station's Russian transfer
compartment for Padalka and Barratt is expected to begin about 1:45
a.m.

For NASA Television downlink information, schedule information and
streaming video, visit:

http://www.nasa.gov/ntv


For information about the station, visit:

http://www.nasa.gov/station


-end-
Jacques :-)

Offline anik

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #5 on: 06/01/2009 06:39 pm »
Removing of third container of Biorisk-MSN equipment from Pirs airlock is deleted from list of spacewalk tasks due to request of experiment investigators.

Offline JimO

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #6 on: 06/02/2009 07:45 pm »
Excellent article (and pictures) here (in Russian):

2 июня 2009 года 15:10 | Герман Петелин    
Россия запускает космический «прикид»

   http://svpressa.ru/issue/news.php?id=9547

Offline catfry

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #7 on: 06/03/2009 07:14 am »
From yesterdays ISS status report:

To configure the Progress M-02M/33P cargo ship, docked at the “Pirs” DC1 nadir port, for ground-commanded emergency undocking if it should become necessary during the use of the DC1 airlock for the EVA-22, Romanenko & Padalka –
Activated the Progress (i.e., SUBA/Onboard Equipment Control System & SOTR/Thermal Control System),
Removed the air heater/fan unit & air duct in the passageway,
Released the quick-release screw clamps which rigidize the docking joint (with RS/Russian Segment thrusters inhibited during the closing-up activities),
Took documentary video of the DC1/Progress interface prior to hatch closure and downlinked the video via Ku-band for ground inspection,
Closed the hatches, and
Performed the usual one-hour leak check on the vestibule between the DC1-SU & SU-33P hatches to test for hermeticity.


I assume an ermergency that would involve the need to undock the Progress at the DC1 would be something like the inability to repressurize the DC1 compartment. is this need to be able to undock automatically just so that it will be possible at all to undock the Progress or is it necessary to undock immediately during the spacewalk as part of an emergency response?

Offline anik

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #8 on: 06/03/2009 03:59 pm »
http://www.nasa.gov/mission_pages/station/main/index.html

"During the Russian spacewalk, Padalka and Barratt will prepare the Pirs docking compartment for the arrival of the Mini-Research Module 2, which will serve as an additional docking port for Russian vehicles. The spacewalkers will install a docking antenna to help guide the new module into place when it arrives at the station aboard an unpiloted Soyuz [MRM-2 arrives aboard Progress M-MIM2 cargo ship-module, which will be launched by Soyuz-U rocket - anik] in November.

Additionally, Padalka and Barratt will take photographs of the Strela-2, a manually-operated crane used during Russian spacewalks [they will take photographs of the installed antennas from cargo boom - anik], and retrieve a canister from the Biorisk space exposure experiment [this task is already removed - anik]. Flight Engineer Koichi Wakata will assist the spacewalkers from inside the Zvezda service module."

Is this need to be able to undock automatically just so that it will be possible at all to undock the Progress or is it necessary to undock immediately during the spacewalk as part of an emergency response?

The first, of course.

Offline catfry

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #9 on: 06/03/2009 08:56 pm »
Thank you anik. I guess I just don't know what emergency steps would be involved if faced what this situation of an inability to repressurize.

Offline cd-slam

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #10 on: 06/04/2009 09:02 am »
Thank you anik. I guess I just don't know what emergency steps would be involved if faced what this situation of an inability to repressurize.
As I understand (from discussion on earlier spacewalks with Soyuz at the Pirs) the main concern is an event causing emergency evacuation of the ISS which might occur during an EVA from the Pirs airlock. The obvious example would be a major fire inside one of the ISS modules.

In such a case, the spacewalking astronauts would be required to enter their Soyuz capsule from outside hatch and evacuate the complex without the need to re-enter Pirs. This operation had been tested on an earlier spacewalk.

In such case, presumably Pirs would remain depressurized and thus there may be a need for Progress to be jettisoned automatically. The surprise is that such detailed procedures are needed for this operation, the typical Russian method is to command everything from the ground and use crew operation as a back-up method.

Offline catfry

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #11 on: 06/04/2009 11:27 am »
Oh I see now. Though in such a major upset the ability to undock Progress seems of lesser importance. Although on the other hand, any potential recovery/necessary deorbit would obviously involve a fresh vehicle that would need a free docking port, so I suppose it actually is quite important to manage these things.
Thanks for explanations.

Offline anik

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Offline catfry

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #13 on: 06/04/2009 05:29 pm »
I understand why Wakata have to be in the SM during the second spacewalk, so as not to be isolated from his rescue vehicle docked to SM aft, but that graffic makes it look like he is required to stay there during the first spacewalk also which I don't understand.
I didn't catch that anything were happening to the transfer compartment that would make it a no-go area during the first spacewalk?

Offline The-Hammer

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #14 on: 06/04/2009 06:09 pm »
IANAE

My understanding is that the transfer compartment is the backup airlock. If they can't repressurize Pirs then the spacewalkers will enter the transfer compartment and try to repress there.

The equipment lock in Quest serves a similar function.
Grant Imahara: Oxygen deficiency alarm? Is that something I should be worried about?
NASA worker: Only if it goes off.

Offline John44

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Offline cb6785

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #16 on: 06/05/2009 06:11 am »
Coverage of todays EVA is going to start in a few minutes.

Edit: And here we are.
« Last Edit: 06/05/2009 06:16 am by cb6785 »
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Offline cb6785

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #17 on: 06/05/2009 06:19 am »
Tasks for today, as said on the previous page, are:

- Installation of two sets of KURS-antennas for MRM2
- Installing and connecting the cables to these two anntenna sets.
- Taking pictures of the installed antennas.
« Last Edit: 06/05/2009 06:20 am by cb6785 »
You know, if I’d had a seat you wouldn’t still see me in this thing. - Chuck Yeager

Offline cb6785

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #18 on: 06/05/2009 06:21 am »
First view from orbit, showing the Pirs docking compartement, from which todays EVA will be based.

Edit: Spacessuit leak-checks are underway
« Last Edit: 06/05/2009 06:22 am by cb6785 »
You know, if I’d had a seat you wouldn’t still see me in this thing. - Chuck Yeager

Offline cb6785

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Re: Expedition 20 first spacewalk - June 5, 2009
« Reply #19 on: 06/05/2009 06:24 am »
Checking Orlan parameters
« Last Edit: 06/05/2009 06:25 am by cb6785 »
You know, if I’d had a seat you wouldn’t still see me in this thing. - Chuck Yeager

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