Author Topic: MLM radiator leak 9 October 2023  (Read 11799 times)

Offline Targeteer

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MLM radiator leak 9 October 2023
« on: 10/09/2023 05:14 pm »
ISS crew in the cupola and controllers using external cameras have confirmed a leak from a radiator on MLM
« Last Edit: 10/09/2023 06:31 pm by zubenelgenubi »
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: MLM radiator leak
« Reply #1 on: 10/09/2023 05:17 pm »
Andy is downloading photos of the leak.  Shutters to the cupola windows have been closed per ground request.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

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Re: MLM radiator leak
« Reply #2 on: 10/09/2023 05:22 pm »
A reminder, Russian comms on SG-1 are no longer aired on the ISS Youtube feed so getting updates will be difficult.  Translations of the comms stopped before the SG-1 was dropped from the feed.  The feed is only aired by NASA during Russian visiting vehicle events. 
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

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Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

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Re: MLM radiator leak Oct 09, 2023
« Reply #4 on: 10/09/2023 05:42 pm »
No impacts so far due to the leak according to MCC-H in discussions Moscow.  The crew was asked to confirm all US segment window shutters are closed.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

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Re: MLM radiator leak Oct 09, 2023
« Reply #5 on: 10/09/2023 06:06 pm »
Crew is receiving several cautions and warnings on board but CAPCOM confirms no crew action required.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline rdale

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Re: MLM radiator leak Oct 09, 2023
« Reply #6 on: 10/09/2023 06:07 pm »

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Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

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Re: MLM radiator leak Oct 09, 2023
« Reply #8 on: 10/09/2023 06:19 pm »
MCC-H advises they are working through the cautions and warnings and that more may appear as they do. No confirmation yet they are related to the leak.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

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Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline rdale

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Re: MLM radiator leak Oct 09, 2023
« Reply #10 on: 10/09/2023 06:23 pm »
This seems like a LOT of C&Ws, especially if unrelated to the leak. Is it just my memory failing or does this sound more than normal?

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Re: MLM radiator leak Oct 09, 2023
« Reply #11 on: 10/09/2023 06:23 pm »
https://twitter.com/planet4589/status/1711438230879400236

Is that the link you wanted? It's just Jonathan RTing the tweet you posted above.

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Re: MLM radiator leak Oct 09, 2023
« Reply #12 on: 10/09/2023 06:28 pm »
This seems like a LOT of C&Ws, especially if unrelated to the leak. Is it just my memory failing or does this sound more than normal?

Definitely more than normal.  Hard to believe they are unrelated.  The JCM post was to show word is spreading :)
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

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Re: MLM radiator leak 9 October 2023
« Reply #13 on: 10/09/2023 06:48 pm »
Is that one of the radiators Bill Harwood referred to or both of them?  https://twitter.com/SpaceflightNow/status/1711444334514483648/photo/1
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Nicolas PILLET

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Re: MLM radiator leak 9 October 2023
« Reply #14 on: 10/09/2023 06:54 pm »
There is two radiators on MLM :

- the standard radiator (pictures below) which allows for  thermal dissipation during pre-docking operations and nominal flight while docked to the ISS,

- the RTOd radiator, installed during VKD-56 spacewalk on 19.04.2023, which allows for more thermal dissipation, allowing the use of science equipment with very high electrical consumption.

If the leak is on the first radiator, the module can possibly be dead. If the leak is on the RTOd, the module is safe, but it will never be able to be used at 100% capacity.
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Offline Yellowstone10

Re: MLM radiator leak 9 October 2023
« Reply #15 on: 10/09/2023 06:59 pm »
Roscosmos's statement on Telegram, via Google Translate:

Quote
On the Nauka module of the Russian segment of the ISS, a coolant leak occurred from the external (backup) radiator circuit, which was delivered to the station in 2012. The main thermal control circuit of the module operates normally and provides comfortable conditions in the living area of ​​the module.
The crew and the station are not in danger.
The work of the main operational management group continues to analyze the current situation.

"Delivered to the station in 2012" would suggest the RTOd, albeit with a 2-year error.

Offline Nicolas PILLET

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Re: MLM radiator leak 9 October 2023
« Reply #16 on: 10/09/2023 07:40 pm »
Roscosmos's statement on Telegram, via Google Translate:

Quote
On the Nauka module of the Russian segment of the ISS, a coolant leak occurred from the external (backup) radiator circuit, which was delivered to the station in 2012. The main thermal control circuit of the module operates normally and provides comfortable conditions in the living area of ​​the module.
The crew and the station are not in danger.
The work of the main operational management group continues to analyze the current situation.

"Delivered to the station in 2012" would suggest the RTOd, albeit with a 2-year error.

The statement says 2010.

https://twitter.com/nicolas_pillet/status/1711458235171901900
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Re: MLM radiator leak 9 October 2023
« Reply #17 on: 10/09/2023 07:44 pm »
With all this going on, the ISS Youtube feed is showing a radiator on the US segment.  My guess is Moscow demanded---errr asked--NASA not to air a live feed of the leak.  Wait for release of photos taken from the cupola and US segment external cameras to be released by Roscosmos, with their water mark splashed all over them...
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline zubenelgenubi

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Re: MLM radiator leak 9 October 2023
« Reply #18 on: 10/09/2023 07:53 pm »
It's early to ask, but are repair of the leaking radiator, or removal and replacement of the EVA-installed radiator, possible?
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Offline Yellowstone10

Re: MLM radiator leak 9 October 2023
« Reply #19 on: 10/09/2023 07:55 pm »
The statement says 2010.

Looks like they edited their post. (I was very much hoping that 2012 was a typo for 2010 and not 2021, so that's good to see!)

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