Quote from: GWR64 on 01/07/2023 09:33 amI don't know if that is factored into the decisions.An uncrewed launch of Soyuz MS23 has the disadvantage, that it cannot dock with the ISS, if there is a problem with the spacecraft's KURS system. I think the TORU remote control is only available on the Progress.Although it predates this by some margin, Soyuz 34 (a 7K-T with modified engine) was sent up uncrewed to Salyut 6 in June 1979. This was so the crew could return in a Soyuz with a different engine than the one they had been sent up in, as the Soyuz that was sending the next crew up suffered a mishap. That model only had Igla automatic docking system - but both Igla and Kurs (on modern Soyuz) can be controlled from the ground. TORU is operated from the teleoperator control on the space station - both Zvezda and Zarya have TORU controls and associated antenna. Modern Soyuz MS (and Progress MS) have TORU antenna fitted, but Progress (and Nauka MLM as it happens) have the extra antennas for TORU. So, yes, Soyuz can fly uncrewed and dock with the space station, and by teleoperated if need be by crew on board the space station.
I don't know if that is factored into the decisions.An uncrewed launch of Soyuz MS23 has the disadvantage, that it cannot dock with the ISS, if there is a problem with the spacecraft's KURS system. I think the TORU remote control is only available on the Progress.
Quote from: maxtout on 01/07/2023 10:45 amQuote from: GWR64 on 01/07/2023 09:33 amI don't know if that is factored into the decisions.An uncrewed launch of Soyuz MS23 has the disadvantage, that it cannot dock with the ISS, if there is a problem with the spacecraft's KURS system. I think the TORU remote control is only available on the Progress.Although it predates this by some margin, Soyuz 34 (a 7K-T with modified engine) was sent up uncrewed to Salyut 6 in June 1979. This was so the crew could return in a Soyuz with a different engine than the one they had been sent up in, as the Soyuz that was sending the next crew up suffered a mishap. That model only had Igla automatic docking system - but both Igla and Kurs (on modern Soyuz) can be controlled from the ground. TORU is operated from the teleoperator control on the space station - both Zvezda and Zarya have TORU controls and associated antenna. Modern Soyuz MS (and Progress MS) have TORU antenna fitted, but Progress (and Nauka MLM as it happens) have the extra antennas for TORU. So, yes, Soyuz can fly uncrewed and dock with the space station, and by teleoperated if need be by crew on board the space station.this was not possible with Soyuz MS-14
Quote from: GWR64 on 01/07/2023 11:00 amQuote from: maxtout on 01/07/2023 10:45 amQuote from: GWR64 on 01/07/2023 09:33 amI don't know if that is factored into the decisions.An uncrewed launch of Soyuz MS23 has the disadvantage, that it cannot dock with the ISS, if there is a problem with the spacecraft's KURS system. I think the TORU remote control is only available on the Progress.Although it predates this by some margin, Soyuz 34 (a 7K-T with modified engine) was sent up uncrewed to Salyut 6 in June 1979. This was so the crew could return in a Soyuz with a different engine than the one they had been sent up in, as the Soyuz that was sending the next crew up suffered a mishap. That model only had Igla automatic docking system - but both Igla and Kurs (on modern Soyuz) can be controlled from the ground. TORU is operated from the teleoperator control on the space station - both Zvezda and Zarya have TORU controls and associated antenna. Modern Soyuz MS (and Progress MS) have TORU antenna fitted, but Progress (and Nauka MLM as it happens) have the extra antennas for TORU. So, yes, Soyuz can fly uncrewed and dock with the space station, and by teleoperated if need be by crew on board the space station.this was not possible with Soyuz MS-14I understand the failure to dock for Soyuz MS-14 was with Kurs on Poisk. Regarding the fitting of TORU to Soyuz models possibly - externally they do have the same small TORU antenna as fitted to the FGB for example. The antenna that does separate the autonomous craft from the crewed craft, as I understand it, is the triangular antenna that is for TORU seen on Nauka MLM and all Progress craft since 1993 (reconfiguration of AM-1 antenna?), which Soyuz does not have. (ESA ATV had the Russian docking system but lacked the equipment and antenna for TORU, and on the SM they always had to swap out a different controller package for when ATV docked).However, the ability to dock without a crew would be through Kurs in any case, and can be controlled from the ground if need be.
Roskosmos is now promising to make a decision on the "situation" with the #Soyuz MS-22 spacecraft on January 11 (which means it had already been made) – DETAILS: https://www.russianspaceweb.com/soyuz-ms-22.html#coolant
Article says unofficial reports are that MS-22 will return uncrewed. MS-23 to launch with one crew member and return with the two MS-22 cosmonauts. Frank Rubio to return separately on a Dragon.
To clarify, this would be on Crew-6 (not Crew-5 in party bus mode) with Andrey Fedyaev giving up his seat.MS-22 crew effectively all get extended 6 months
Would Rubio be the one to come home on Crew-6, or would Anna Kikina's flight get extended to a year so that there would still be three cosmonauts on ISS?
Under that scenario there would be three cosmonauts on the ISS for Expedition 69 (Prokopyev, Petelin, and Kononenko) along with four USOS crew members (Bowen, Hoburg, Rubio, and Al Neyadi)
Quote from: cohberg on 01/08/2023 05:26 pmTo clarify, this would be on Crew-6 (not Crew-5 in party bus mode) with Andrey Fedyaev giving up his seat.MS-22 crew effectively all get extended 6 monthsWould Rubio be the one to come home on Crew-6, or would Anna Kikina's flight get extended to a year so that there would still be three cosmonauts on ISS?
The biggest challenge I see with returning Rubio on Crew-6 is either a Dragon launch and entry suit has to be sent up for him without being fitted on the ground or the teams have to find a way to make his Sokol launch and entry suit compatible with Crew Dragon
Quote from: Josh_from_Canada on 01/09/2023 04:20 amThe biggest challenge I see with returning Rubio on Crew-6 is either a Dragon launch and entry suit has to be sent up for him without being fitted on the ground or the teams have to find a way to make his Sokol launch and entry suit compatible with Crew DragonIIRC, Rubio went through at least part of the Dragon training program for Crew-5 (just as Anna Kikina cross-trained for Soyuz MS-22) when it was unclear whether the seat swap agreement would go through in time for his flight. I wouldn't be surprised if he's already had a Dragon IVA suit made, or at least measurements taken for it.
https://ria.ru/20230108/roskosmos-1843503847.htmlGoogle translate:QuoteMOSCOW, January 8 - RIA Novosti. Reports that Roskosmos and NASA have reached an agreement that the crew members of the faulty Soyuz MS-22, Russians Sergei Prokopiev and Dmitry Petelin and American Frank Rubio, will return from the ISS on two different ships are speculation, RIA Novosti reported on Sunday. the press service of the state corporation.Earlier, a number of telegram channels published information that Roscosmos and NASA allegedly made a decision on further work with the Soyuz MS-22 spacecraft and its crew. According to these data, the ship will land empty in automatic mode, the next Soyuz MS-23 will leave in February, not March, with commander Oleg Kononenko and two empty seats. Also in February, the American ship Crew Dragon will fly with three crew members and one empty seat. Russian crew members Sergei Prokopiev and Dmitry Petelin will return on Soyuz MS-23, and American Frank Rubio, who also flew with them on Soyuz MS-22, will return on Crew Dragon....It was reported that the Soyuz MS-23 spacecraft, which is now located in Baikonur, can be used as a backup. It can be prepared for flight by February 19, and not March 16, as its flight to the ISS was originally scheduled. At the same time, the state corporation hopes that it will not be necessary to use it, and the Soyuz MS-22 crew will return to Earth on a regular basis on their ship in the second half of March.
MOSCOW, January 8 - RIA Novosti. Reports that Roskosmos and NASA have reached an agreement that the crew members of the faulty Soyuz MS-22, Russians Sergei Prokopiev and Dmitry Petelin and American Frank Rubio, will return from the ISS on two different ships are speculation, RIA Novosti reported on Sunday. the press service of the state corporation.Earlier, a number of telegram channels published information that Roscosmos and NASA allegedly made a decision on further work with the Soyuz MS-22 spacecraft and its crew. According to these data, the ship will land empty in automatic mode, the next Soyuz MS-23 will leave in February, not March, with commander Oleg Kononenko and two empty seats. Also in February, the American ship Crew Dragon will fly with three crew members and one empty seat. Russian crew members Sergei Prokopiev and Dmitry Petelin will return on Soyuz MS-23, and American Frank Rubio, who also flew with them on Soyuz MS-22, will return on Crew Dragon....It was reported that the Soyuz MS-23 spacecraft, which is now located in Baikonur, can be used as a backup. It can be prepared for flight by February 19, and not March 16, as its flight to the ISS was originally scheduled. At the same time, the state corporation hopes that it will not be necessary to use it, and the Soyuz MS-22 crew will return to Earth on a regular basis on their ship in the second half of March.
This story on what to do about the Soyuz MS-22 leak has been getting a lot of attention, but I'm told it is not entirely correct, and no final decisions have been made.
Jan 10, 2023MEDIA ADVISORY M23-003NASA to Host Media Update on Space Station Plans, Soyuz StatusNASA will host a media teleconference at 9 a.m. EST Wednesday, Jan. 11, to discuss results from the investigation of the Roscosmos Soyuz MS-22 external coolant leak and the forward strategy for uninterrupted human operations aboard the International Space Station.Live audio of the call will stream on the agency’s website at:https://www.nasa.gov/liveBriefing participants include:Joel Montalbano, International Space Station program manager, NASA’s Johnson Space Center in HoustonSergei Krikalev, Human Space Flight Programs executive director, RoscosmosMedia interested in participating by phone must contact the Johnson newsroom no later than one hour before the start of the call at 281-483-5111 or [email protected]The leak was first detected around 7:45 p.m. on Dec. 14, 2022, when pressure sensors in the spacecraft’s cooling loop showed low readings. At the time of the leak, Roscosmos cosmonauts were preparing to conduct a spacewalk. The spacewalk was postponed, so no crew members exited the space station or were exposed to the leaking coolant.NASA provided an additional inspection of the Soyuz exterior using the station’s Canadarm2 robotic arm on Dec. 18. The agency and Roscosmos specialists have continued to closely monitor Soyuz spacecraft systems. NASA and Roscosmos are concluding their work together to develop a course of action following the analysis.The Soyuz MS-22 spacecraft carried NASA astronaut Frank Rubio and Roscosmos cosmonauts Sergey Prokopyev and Dmitri Petelin into space after launching from the Baikonur Cosmodrome in Kazakhstan on Sept. 21.For updates, follow along on NASA’s space station blog at:https://blogs.nasa.gov/spacestation/-end-
The Soyuz MS-22 crew ship is pictured on Oct. 8, 2002, in the foreground docked to the Rassvet module as the International Space Station orbited 264 miles above Europe. In the background, is the Prichal docking module attached to the Nauka multipurpose laboratory module.Credits: NASA
Official news from Roscosmos: #SoyuzMS22 should return to Earth without a crew. The launch of #SoyuzMS23 is on February 20, 2023 in automatic mode. The expedition of Sergei Prokopiev, Dmitry Petelin and Francisco Rubio is being extended. They will return to Earth on Soyuz MS-23.
"Soyuz MS-22": the decision of the state commissionOn December 15, there was a depressurization of the external contour of the radiator of the thermal control system of the Soyuz MS-22 spacecraft. The version of technical damage to the radiator during manufacture is not confirmed. It has been experimentally proven that damage to the radiator pipeline occurred as a result of a meteoroid impact. The hole diameter is less than 1 mm.Experts concluded: Soyuz MS-22 should descend to Earth without a crew.Launch of Soyuz MS-23 on February 20, 2023 in unmanned mode.It was previously planned that Roscosmos cosmonauts Oleg Kononenko and Nikolai Chub and NASA astronaut Loral O'Hara would go to the station on March 16 on this ship.The expedition of Sergei Prokopiev, Dmitry Petelin and Francisco Rubio to the ISS is being extended. They will return to Earth on Soyuz MS-23.
Sergei Prokopiev, Dmitry Petelin, and Francisco Rubio could save the seat liners to be used on Soyuz MS-23.Is Roscosmos intending to land MS-22?
