Author Topic: RS EVA VKD-61 - Nauka outfitting/RTOd leak tasks - Oct 25 2023 (Kononenko, Chub)  (Read 12801 times)

Offline eeergo

Spacewalk still on in spite of the leak on Nauka's external radiator, although understandably modified to account for it.


https://twitter.com/katlinegrey/status/1711779893954883950
« Last Edit: 10/16/2023 09:20 am by Galactic Penguin SST »
-DaviD-

Offline SMS

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Spacewalk still on in spite of the leak on Nauka's external radiator, although understandably modified to account for it.


https://twitter.com/katlinegrey/status/1711779893954883950

October 25th, 2023 is correct schedule date!
« Last Edit: 10/10/2023 05:26 pm by SMS »
---
SMS ;-).

Offline eeergo

Well spotted, thanks!
-DaviD-

Offline Galactic Penguin SST

https://www.nasa.gov/nasatv/

Wednesday, Oct. 25
2 p.m. — Coverage of Russian Spacewalk 61 at the International Space Station to install a synthetic radar communications system, deploy a solar sail technology satellite, replace electrical connector patch panels, and photograph the Multipurpose Laboratory Module’s external radiator. Spacewalk expected to begin at approx. 2:30 p.m. and last approx. 6 hours, 45 minutes

= ~18:30 UTC
Astronomy & spaceflight geek penguin. In a relationship w/ Space Shuttle Discovery. Current Priority: Chasing the Chinese Spaceflight Wonder Egg & A Certain Chinese Mars Rover

Offline russianhalo117

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https://www.nasa.gov/nasatv/

Wednesday, Oct. 25
2 p.m. — Coverage of Russian Spacewalk 61 at the International Space Station to install a synthetic radar communications system, deploy a solar sail technology satellite, replace electrical connector patch panels, and photograph the Multipurpose Laboratory Module’s external radiator. Spacewalk expected to begin at approx. 2:30 p.m. and last approx. 6 hours, 45 minutes

= ~18:30 UTC
The SAR instrument to be installed is Rakurs and was built by IPG. The instrument will be mounted on a special adapter of the UFP2 passive standard attachment point of the Nauka module
« Last Edit: 10/25/2023 04:14 pm by russianhalo117 »

Online Yellowstone10

https://www.nasa.gov/news-release/nasa-sets-coverage-for-roscosmos-spacewalk-outside-space-station/

Quote
NASA will provide live coverage as two Roscosmos cosmonauts conduct a spacewalk outside the International Space Station Wednesday, Oct. 25, to install communications hardware and inspect a portion of the orbital complex. 

Coverage begins at 1:45 p.m. EDT on NASA Television, the NASA app, and the agency’s website. The spacewalk is expected to begin at 2:10 p.m. and could last up to seven hours.

Expedition 70 cosmonauts Oleg Kononenko and Nikolai Chub will venture outside of the station’s Poisk module to install a synthetic radar communications system and release a nanosatellite to test solar sail technology. While outside the station, they also will inspect and photograph an external backup radiator on the Nauka multipurpose laboratory module that experienced a coolant leak on Oct. 9.

The spacewalk will be the 268th in support of space station assembly, maintenance, and upgrades. It will be the sixth for Kononenko, who will wear the Orlan spacesuit with red stripes and the first for Chub, who will wear the spacesuit with blue stripes.

Online Yellowstone10

Here's the YouTube link for Russian-language coverage:



as well as the press kit imagery from Roscosmos's Telegram.

Online Yellowstone10

And the rest of the press kit:

Online Yellowstone10

The Napor-miniRSA equipment that will be installed on the exterior of Nauka was reportedly launched to the station with Progress MS-22 back in February 2023:

https://interfax.com/newsroom/top-stories/87787/

Quote
The spaceship is also carrying kits for Russian scientific experiments, including Kardiovektor, Neiroimmunitet, Pilot-T, Matryoshka-R, Biomag-M, Antiseptik, Probiovit, Struktura, Fotobioreaktor, Biodegradatsiya, Biopolimer, and Sepatsiya.

Additionally, it will supply equipment for the Napor-miniRSA experiment and an ASN-KM satellite navigation antenna to be installed on the exterior of Russian modules during spacewalk.

There are some references to another Napor-miniRSA experiment in the 2016-17 timeframe, so I'm not sure how those are related.

Edit - after some additional research, it seems like Napor-miniRSA involves both an optical and a radar component, and the optical part's been up there for a while - it's those cameras that UrtheCast sent up there back in 2013 that took a couple EVAs to successfully install during Expedition 38. Now that Nauka's up and running, they can finally install the SAR component and start cross-referencing between the observations.
« Last Edit: 10/25/2023 12:00 am by Yellowstone10 »

Online Yellowstone10

Russian comms have switched over to Space-to-Ground 2 in advance of today's spacewalk.

Offline Targeteer

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Russian comms have switched over to Space-to-Ground 2 in advance of today's spacewalk.
Russian comms have switched over to Space-to-Ground 2 in advance of today's spacewalk.

Sometoday, maybe today, I wish an expert/insider would explain the functional differences between SG 1 and SG 2..
« Last Edit: 10/25/2023 05:10 pm by Galactic Penguin SST »
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Online Yellowstone10

Port and starboard SARJs are both in Shutdown mode as of about 15:20Z. (Presumably for EVA ops?)

The video feed is also now on a "No WVS Video" test screen, and the Node 1 WETA is one of the downlink video sources.
« Last Edit: 10/25/2023 03:28 pm by Yellowstone10 »

Online Yellowstone10

SG2 now has a Russian-to-English translator narrating the spacewalk preps.

Online Yellowstone10

Working through leak checks on Poisk - sounds like everything's going as planned so far.

Online Yellowstone10

Waiting for the prebreathe period to finish up...

Online Yellowstone10

Prebreathe is finishing up right about now. They're currently about 8 minutes ahead of schedule.

Online Yellowstone10

Pressure is down to 35 millimeters.

Offline theonlyspace

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nICE VIEW OF THE THREE SPACECRAFT

Online Yellowstone10

NASA TV coverage has started. Rob Navias is today's commentator.

Online Yellowstone10

Thermal Loop #1 is the leaky one, and Loop #2 is active. Both loops go through both the body mounted radiators and the external radiator - but they'll be closing some valves at the radiator to shut off both loops from the RTOd at this point. They'll also connect the external radiator part of Loop #2 to the fluid reservoir they used to fill it, so as to provide thermal expansion space, since they're not draining that loop. Eventually they hope to bring up more fluid to refill Loop #1.

Navias is also discussing the additional clean-up steps they'll take to mitigate any risk of bringing coolant inside the ISS - careful wipedowns, plus an extra filtration system activated in Poisk for about 24 hours.

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