One question regarding the specifics of the work is whether the ERA-to-Strela adapter is still to be employed for the relocation (narrower boom between ERA and the airlock in the last attached rendering, see the discussion starting here in MLM's General Thread for more context: https://forum.nasaspaceflight.com/index.php?topic=23444.msg2369121#msg2369121).
Quote from: eeergo on 04/26/2023 10:27 amOne question regarding the specifics of the work is whether the ERA-to-Strela adapter is still to be employed for the relocation (narrower boom between ERA and the airlock in the last attached rendering, see the discussion starting here in MLM's General Thread for more context: https://forum.nasaspaceflight.com/index.php?topic=23444.msg2369121#msg2369121).That's a pointless question. The adapter is needed because in itself ERA doesn't have the reach to grab the airlock. If the adapter wasn't needed, the Russians wouldn't have bothered to bring it up onboard MLM in the first place.Without the adapter, the only way to get the airlock from MRM to MLM is by hand, tugged by the cosmonauts via extending a regular STRELA boom between MRM and MLM.
Quote from: woods170 on 04/26/2023 02:03 pmQuote from: eeergo on 04/26/2023 10:27 amOne question regarding the specifics of the work is whether the ERA-to-Strela adapter is still to be employed for the relocation (narrower boom between ERA and the airlock in the last attached rendering, see the discussion starting here in MLM's General Thread for more context: https://forum.nasaspaceflight.com/index.php?topic=23444.msg2369121#msg2369121).That's a pointless question. The adapter is needed because in itself ERA doesn't have the reach to grab the airlock. If the adapter wasn't needed, the Russians wouldn't have bothered to bring it up onboard MLM in the first place.Without the adapter, the only way to get the airlock from MRM to MLM is by hand, tugged by the cosmonauts via extending a regular STRELA boom between MRM and MLM.Not sure why the aggressive antagonism is warranted. The Strela solution you mention was thoroughly and well-explained in the linked thread, at the time of the issues with ERA commissioning. However, the user that introduced the extension boom topic mentioned he was unsure whether it was still the main solution or it might have been canceled in favor of another approach, to which no conclusive answer was given, prompting my question today.
NaukaThe port on Nauka for the airlock is ASA-G (Docking Port Active - Hybrid). The ports are not androgynous.Nauka:ASA-G - Active with ProbeAPAS collar, 4 petals, 12 latchesAirlock:ASP-G - Passive with Drogue and Docking targetAPAS collar, 4 petals, 12 slots for latches
Two cosmonauts will conduct a pair of spacewalks on Wednesday, May 3, and Friday, May 12, to relocate hardware outside the @Space_Station. Details and coverage info: https://go.nasa.gov/44blzDe
...Sergei Prokopyev and Dmitry Petelin will again go overboard the International Space Station to retrofit the Nauka module. They will have to prepare the airlock for transfer by the ERA manipulator from the Rassvet module and install it on Nauka.▪️ Opening of the exit hatch - May 3 at 23:05 Moscow time▪️ The planned duration of the work is 6 hours 22 minutes.Join the broadcast on our social networks: YouTube, Rutube and VKontakte at 23:00 Moscow time.
In 3 hours, Roscosmos will begin the stream of the next Russian EVA. Sergei Prokopiev and Dmitry Petelin will egress the Poisk module at 21:05 UTC to transfer the airlock from Rassvet module to Nauka. Andrei Fedyaev will operate the ERA manipulator. @VKD57
BTW, Roscosmos announced the delivery of 3 new #OrlanMKS spacesuits to the ISS. One will be manufactured in 2024, and two in 2025. The currently used spacesuits are at the limit of their warranty period, which is 20 EVAs. In No. 4, 17 spacewalks were performed, in No. 5 - 15.
Of course the EVA suits can work beyond warranty, but there are issues already - like the battery power fluctuation Oleg Artemiev faced. Before the new spacesuits arrive, the cosmonauts will have to use Orlan-MKS No 4 and 5, and probably the old Orlan-MK suits stored on the ISS.
RS EVA-57: Cosmonauts Sergei Prokopyev and Dimtri Petelin are suited up in the Poisk airlock compartment for an EVA outside the Russian segment of the ISS to move an experiment airlock from the Rassvet mini research module (MRM) to the Nauka lab module (MLM)
RS EVA-57: The EVA is expected to begin around 4:05pm EDT (2005 UTC); for ID, Prokopyev, call sign EV-1, is wearing Orlan spacesuit MKS 5 with red markings and using helmet camera 16; Petelin, EV-2, is wearing Orlan MKS 4 with blue markings and using helmetcam 22
RS EVA-57: The spacewalkers will be assisted with the airlock relocation by crewmate Andrey Fedyaev, operating the European Robotic Arm, or ERA, from inside the station
With their suits on internal power, cosmonauts are preparing to open hatch of the Poisk module, starting VKD-57 spacewalk...
...Hatch open (~4:01 p.m. EDT)...
RS EVA-57: The Poisk hatch was opened at 4:00pm EDT (2000 UTC), officially starting Russian EVA-57; this is the 262nd EVA devoted to ISS assembly and maintenance, the 5th so far this year, the 5th excursion for Prokopyev and the 3rd for Petelin
The European Robotic Arm is already in position to carry science airlock from Rassvet to Nauka, once spacewalkers open its locks...
RS EVA-57 (PET: 0:45; EDT: 4:45pm): The cosmonauts have reached the experiment airlock on the Rassvet module; they must disconnect electrical cables, move insulation and release launch locks before Fedeayev, operating the European robot arm, can move it to the Nauka lab module
ERA connects to the airlock via a special adapter installed during the previous spacewalk:
RS EVA-57 (PET: 1:40; EDT: 5:40pm): Prokopyev and Petelin have completed removal of a protective blanket and disconnected electrical cables linking the experiment airlock with the Rassvet module; they're now releasing the launch locks holding the airlock in place
Cosmonauts now opening the final lock connecting the airlock to Rassvet, before the 150-kilogram device would be moved by the European Robotic Arm to the Nauka module:
RS EVA-57 (PET: 2:06; EDT: 6:06pm): With a final launch lock released, Fedyaev, operating the European Robot Arm from inside the ISS, is ready to move the disconnected experiment airlock from Rassvet to Nauka after inspections to make sure it's free of any obstructions
Another night shift for the #EuropeanRoboticArm (ERA). Tonight's task involves moving an experiment airlock from the Rassvet to the Nauka module on the International @Space_Station. ERA is on the move, operated by an astronaut inside the station.
n the meantime, the spacewalkers are traversing back the Russian ISS Segment, on their way to Nauka to meet the airlock riding the European Robotic Arm at its docking site:
RS EVA-57 (PET: 3:10; EDT: 7:10pm): After cleaning up the Rassvet worksite, Prokopyev and Petelin are headed back to the Poisk module to retrieve a cable need to connect the experiment airlock to Nauka; also stowing a bundle of no-longer-needed gear that will be jettisoned later
The spacewalkers now reached Nauka, right behind the airlock being moved by ERA arm:
The #EuropeanRoboticArm is 11 metres long and it can manoeuvre modules up to 8000 kg with an accuracy of 5 millimetres. 🦾🤩
Working on tool inventory before proceeding into the Poisk airlock.Edit - anyone know enough Russian to translate the flag and the caption on that picture on the toolkit?
56434 ISS DEB (ERA OUTFITTING) 1998-067VJ 92.88 51.64 421 410