Author Topic: ISS RS: Nauka Multipurpose Laboratory Module-Upgrade (MLM-U) General Updates and Discussion Thread  (Read 798431 times)

Offline Rik ISS-fan

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The Adapter ERA is goint to be used to move the Airlock from it's launch/stowage location on MRM-1 Rassvet and intstall it on MLM/ Nauka. The Adapter ERA is the purple part in this images from the tweet from DutchSatellites.


It is also clearly visible in this image from Tweakers.net


The airlock doesn't have a grapple fixture for ERA, it has a with ERA. has a FRGF (Flight Releasable Grapple Fixture) that is compatible with the STS Canadarm, Canadarm 2 and JEM RMS. The Adapter ERA allows ERA to grapple FRGF's.
I think only the Adapter ERA could be seen in the video shared by Rondaz (post #1613, page 81 @4:50).
Most likely I was mistaken about the Boom where ERA will be placed upon. I've no further information than the images. It could be the case that the boom has been canceled.
It looks like the boom will be mounted on BTL-3. Could something smart be done here?
Since ERA EE-2 seemed to have trouble making power and data connection with BTL-3.
Could they replace BTL-3 directly with the Boom (or a modified version)?
« Last Edit: 05/16/2022 07:17 pm by Rik ISS-fan »

Offline Space Pete

Some views of the ERA adaptor from DOUG.
NASASpaceflight ISS Editor

Offline russianhalo117

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The Adapter ERA is goint to be used to move the Airlock from it's launch/stowage location on MRM-1 Rassvet and intstall it on MLM/ Nauka. The Adapter ERA is the purple part in this images from the tweet from DutchSatellites.


It is also clearly visible in this image from Tweakers.net


The airlock doesn't have a grapple fixture for ERA, it has a with ERA. has a FRGF (Flight Releasable Grapple Fixture) that is compatible with the STS Canadarm, Canadarm 2 and JEM RMS. The Adapter ERA allows ERA to grapple FRGF's.
I think only the Adapter ERA could be seen in the video shared by Rondaz (post #1613, page 81 @4:50).
Most likely I was mistaken about the Boom where ERA will be placed upon. I've no further information than the images. It could be the case that the boom has been canceled.
It looks like the boom will be mounted on BTL-3. Could something smart be done here?
Since ERA EE-2 seemed to have trouble making power and data connection with BTL-3.
Could they replace BTL-3 directly with the Boom (or a modified version)?
An ERA to Strela converter would be engaged into the ERA side ERA of the ERA Adapter. The strela end effector would then be engaged in the converter and the transfer worldly be conducted by the EVA crew taking turns. Strela is the preferred contingency option. Most likely they would unbolt BTL-3 and bring it inside for testing with meters and diagnostic hardware. They can also fly ones intended future installationand install one at the BTL-3 site if Nauka isnt at faul. Otherwise bypass jumper cables would have to be flown and the BTL-3 site would have to receive modifications
likely via a kit to allow external power and data cables to be used.
OBSS wouldn't be needed for this EVA from contingency perspective. SSRMS with SPDM can fly EV Crew holding it though using the FRGF is the recommended USOS contingency option.

Offline Space Pete

I believe the ERA adaptor works using the same principle as the Strela adaptor, which has been in use on ISS for years, and is used to convert a FRGF into a basepoint for the Strela arm.

1st attached image shows the Strela adaptor installed on a PMA-3 FRGF (although it is currently installed on the FGB's FRGF).

In the case of the MLM airlock, an adaptor of the same design will first be installed over the airlock's FRGF via EVA. The ERA boom will then be manually installed onto the FRGF adaptor, using the same attachment mechanism as is used for Strela.

2nd attached image shows the ERA adaptor inside MLM (shown in two pieces, with FRGF end on right, and ERA end to the left of it).

3rd and 4th attached images show the Strela boom, on which the exact same attachment mechanism as the ERA boom is visible (circled in red).
NASASpaceflight ISS Editor

Offline Space Pete

1st pic (A): MLM airlock FRGF

2nd pic (B): FRGF with adaptor

3rd pic (C): ERA boom installed onto FRGF adaptor
NASASpaceflight ISS Editor

I didn't said use obss I compared obss and adapter era (clearly by the explanation on the adapter, that nothing is alike)

And if bringing the outfittings from rassvet os so pesky why isn't the era grapple fixture on airlock used?? For radiator also use rassvet era grapple fixture after need return this fixture to rassvet
« Last Edit: 05/17/2022 04:23 am by Chinakpradhan »

Offline russianhalo117

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I didn't said use obss I compared obss and adapter era (clearly by the explanation on the adapter, that nothing is alike)

And if bringing the outfittings from rassvet os so pesky why isn't the era grapple fixture on airlock used?? For radiator also use rassvet era grapple fixture after need return this fixture to rassvet
Because the ERA grapple base and hardware is to be installed inside SrK after its arm docking onto Nauka. The detachable payload tray is based off of the JEMAL design used by Japan on their module. The ERA cannot reach SrK module without the ERA arm extension adapter.

Offline russianhalo117

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VKD-54 has been cleared to proceed following the successful June 22nd attempt to connect to the BTL-3 grapple and perform the base command and control change to ERA EE1 from EE2 on BTL-2.

Paywalled ERA Status Update: The European Robotic Arm arrives at its parking position

Offline russianhalo117

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ISS Daily Summary Report 6/21/2022

European Robotic Arm (ERA) Operations: Today by adjusting and moving the angle of the ERA arms, ERA checkout and telemetry operations were completed successfully. ERA is located on MLM and is the intended to be the primary equipment for servicing the electromechanical systems on the Russian Segment once it completes commissioning.

........

Option 2:

2021
18 - October 28 (301:00:00:32.525) Progress MS-18 (№447) Soyuz-2-1A (С15000-049) Baikonur 31/6

SKKO launched folded accordion style like a retracted ISS radiator. Once the nadir end of SKKO is soft docked to Nauka and bolted down, the launch locks on SKKO will be released by the spacewalkers to allow it to be unfolded and extended with its joints self locking in the extended position to create a rigid frame. Then the Zenith end of SKKO is soft docked to Nauka and bolted down. The 3 passive payload adapters and the one active payload adapter (i.e. active remote sensing payload like MIR Priroda's Travers Synthetic Aperture Radar) are then outfitted. The SKKO is derived from the setup used on the Priroda module.


Google translate:
Quote
On November 26, the Prichal node module docked with Nauka, which made it possible to increase the possibilities of transport services for the Russian segment.

The completion of the stage of flight testing of the module provides for the installation on its surface of means for fastening large-sized objects, which will be delivered by the Progress MS-21 spacecraft in October this year. In the future, the module is planned to be retrofitted with an additional radiation heat exchanger and an air lock using the ERA manipulator.
@russianhalo117 it a confusion you said progress ms 18 had delivered it but this says that ms 21 will deliver it??? clarify this thing???

"The completion of the Nauka flight test phase provides for the installation on the surface of the module of means for securing large-sized objects (LCCS), which will be delivered by the Progress MS-21 cargo ship in October 2022. Installation of SCCS intended for outdoor placement of research equipment is scheduled for implementation during the next extravehicular activity of Russian cosmonauts in November this year." https://www.roscosmos.ru/38032/
« Last Edit: 07/31/2022 07:36 am by Chinakpradhan »

Offline russianhalo117

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Is Skko eka means of attachment of large payloads confirmed to be on progress ms-21??
It the first part of SKKO arrived on MS-18 per the onboard manifest documentation stated by Russian Space Web. The second part you state is on 21. LCCS and SCCS are not the same thing. Further follow on hardware is not part of the modules activation outfitting spacewalk series and are yet to be assigned a flight.

Is Skko eka means of attachment of large payloads confirmed to be on progress ms-21??
It the first part of SKKO arrived on MS-18 per the onboard manifest documentation stated by Russian Space Web. The second part you state is on 21. LCCS and SCCS are not the same thing. Further follow on hardware is not part of the modules activation outfitting spacewalk series and are yet to be assigned a flight.
wait. this highly absurd. its a 4 folded part. then how is it two different parts. and please tell the full form of LCCS and SCCS with which has artrived and which will arrive on ms 21.

why no info on this by roscosmos. how this is fair that they do spacewalk to outfit something unnoticed by most.
« Last Edit: 10/15/2022 03:43 am by Chinakpradhan »

Offline russianhalo117

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Is Skko eka means of attachment of large payloads confirmed to be on progress ms-21??
It the first part of SKKO arrived on MS-18 per the onboard manifest documentation stated by Russian Space Web. The second part you state is on 21. LCCS and SCCS are not the same thing. Further follow on hardware is not part of the modules activation outfitting spacewalk series and are yet to be assigned a flight.
wait. this highly absurd. its a 4 folded part. then how is it two different parts. and please tell the full form of LCCS and SCCS with which has artrived and which will arrive on ms 21.

why no info on this by roscosmos. how this is fair that they do spacewalk to outfit something unnoticed by most.
I have sought some clarification and will post back once hear back.

Offline FutureSpaceTourist

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Nice photo:

https://flic.kr/p/2pg4xcH

Quote
The Nauka science module's experiment airlock
iss070e024781 (Nov. 14, 2023) --- A door is opened on an experiment airlock, attached to to the International Space Station's Nauka science module, that will enable science investigations to be removed, exposed to the external microgravity environment, then returned inside while being maneuvered with the European robotic arm.

Online mn

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Nice photo:

https://flic.kr/p/2pg4xcH

Quote
The Nauka science module's experiment airlock
iss070e024781 (Nov. 14, 2023) --- A door is opened on an experiment airlock, attached to to the International Space Station's Nauka science module, that will enable science investigations to be removed, exposed to the external microgravity environment, then returned inside while being maneuvered with the European robotic arm.

So how is the external microgravity environment different than the internal microgravity environment?

Offline eeergo

Nice photo:

https://flic.kr/p/2pg4xcH

Quote
The Nauka science module's experiment airlock
iss070e024781 (Nov. 14, 2023) --- A door is opened on an experiment airlock, attached to to the International Space Station's Nauka science module, that will enable science investigations to be removed, exposed to the external microgravity environment, then returned inside while being maneuvered with the European robotic arm.

So how is the external microgravity environment different than the internal microgravity environment?

Not affected by air currents or other atmosphere-related disturbances.

But obviously what the text wanted to convey is the "exposed to the external environment while in microG", just phrased in a slightly ambiguous way.

In any case, nice to see the airlock is working! I thought they still needed an EVA to fully activate it.
-DaviD-

Nice photo:

https://flic.kr/p/2pg4xcH

Quote
The Nauka science module's experiment airlock
iss070e024781 (Nov. 14, 2023) --- A door is opened on an experiment airlock, attached to to the International Space Station's Nauka science module, that will enable science investigations to be removed, exposed to the external microgravity environment, then returned inside while being maneuvered with the European robotic arm.

So how is the external microgravity environment different than the internal microgravity environment?

Not affected by air currents or other atmosphere-related disturbances.

But obviously what the text wanted to convey is the "exposed to the external environment while in microG", just phrased in a slightly ambiguous way.

In any case, nice to see the airlock is working! I thought they still needed an EVA to fully activate it.
what is that solar arrayish thing above the airlock module

Offline bobthemonkey

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External deployable radiator. Originally launched to station on STS-132 attached to MRM-1 alongside the science airlock and installed on MLM as part of the outfitting activities. Recently suspected to be a site of a leak of coolant from the Russian segment.
« Last Edit: 12/10/2023 05:52 pm by bobthemonkey »

External deployable radiator. Originally launched to station on STS-132 attached to MRM-1 alongside the science airlock and installed on MLM as part of the outfitting activities. Recently suspected to be a site of a leak of coolant from the Russian segment.
dhatt!!! I am talking of orangish solar array thing. Radiator is white in colour above.
« Last Edit: 12/11/2023 02:08 am by Chinakpradhan »

Offline eeergo

It's Rakurs, a SAR observation instrument installed and deployed about a month ago during the last Russian EVA.

https://forum.nasaspaceflight.com/index.php?topic=59671.msg2532225#msg2532225
-DaviD-

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