![]() Moreover, the mission will bring materials and instruments for several experiments, including Interaction-2, Matreshka-R, Cardiovector, MSK-2, Cascade, Fagen, and Probiovit. Among this cargo is equipment for medical examination, station cleaning, air purity and composition control, and water supply. Therefore, this Soyuz MS will play a role of a Progress MS spacecraft. There will be no cosmonauts aboard the Soyuz MS-23 spacecraft instead, it will deliver 429 kg of supplies for the current crew to the ISS. The Soyuz MS-23 spacecraft is getting ready for its mission. Therefore, the crew that would have flown in the damaged Soyuz MS-22 vehicle will use this Soyuz MS-23 spacecraft instead. It cannot be determined whether this was a micro-meteoroid or a small piece of orbital debris. The diameter of the hole is less than 1 mm. According to Sergei Krikalev, the executive director for human spaceflight at ROSCOSMOS, the issue occurred in the cooling system due to an object of ~1 mm puncturing a hole in the external cooling loop of the spacecraft. The version of technical damage to the spacecraft during the manufacturing process was not confirmed. The main goal of the Soyuz MS-23 mission is to replace the Soyuz MS-22 spacecraft that was launched on September 21, 2022, with Sergey Prokopyev (Commander), Dmitry Petelin (Flight Engineer 1), and Francisco Rubio (Flight Engineer 2) aboard, but was damaged on the ISS. The original crewed flight will be reassigned to the Soyuz MS-24 mission. However, the plans were drastically changed due to the issue in the docked Soyuz MS-22 spacecraft that cannot perform the return of the current crew and will reenter the Earth unmanned. Initially, the Soyuz MS-23 mission was intended to bring Oleg Kononenko (ROSCOSMOS, Commander), Nikolai Chub (ROSCOSMOS, Flight Engineer), and Loral O’Hara (NASA, Flight Engineer) to the ISS on March 16, 2023. They also inspected in detail the radiator on the Soyuz MS-23 and did not find any damage to it. However, after the depressurization of the thermal control system of the Progress MS-21 spacecraft, which took place on February 11 at the ISS, ROSCOSMOS took time to analyze the telemetric information and images of the outer surface of the spacecraft. Initially, this launch was scheduled for February 20, 2023. ROSCOSMOS will launch this mission using a Soyuz MS spacecraft atop a Soyuz 2.1a launch vehicle, from Launch Complex 31/6, at the Baikonur Cosmodrome in Kazakhstan. Unlike other Soyuz MS missions, this one does not aim to bring new cosmonauts to the ISS but to replace the Soyuz MS-22 spacecraft that suffered a thermal control system leak on the ISS on December 15, 2022. ROSCOSMOS is set to launch the uncrewed Soyuz MS-23 mission to the International Space Station (ISS) on February 24, 2023. – 3rd launch from the Baikonur Cosmodrome of 2023 Will they be attempting to recover the fairings? The boosters will crash into the steppes of Kazakhstan Will they be attempting to recover the first stage? It will rendezvous with the ISS, ~400 km low Earth orbit (LEO) at a 51.66° inclination Launch Complex 31/6, Baikonur Cosmodrome, Kazakhstanħ,050 kg (15,540 Ib) (for the whole spacecraft) ![]() Soyuz MS-23, un crewed flight to the International Space Station (ISS) Featured image credit: ROSCOSMOS Lift Off Time
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