NASA and Roscosmos continue to evaluate an external leak from the Roscosmos Soyuz MS-22 spacecraft docked to the Rassvet module of the International Space Station (ISS) that was detected on December 14. Roscosmos identified the source of the leak as the external cooling loop of the Soyuz spacecraft.
The Soyuz MS-22 crew ship is pictured docked to the Rassvet module. In the background, the Prichal docking module is attached to the Nauka multipurpose laboratory module. Credit: NASAfrom the Roscosmos Soyuz MS-22 spacecraft docked to the Rassvet module of the International Space Station that was detected on December 14. Roscosmos identified the source of the leak as the external cooling loop of the Soyuz spacecraft.
Roscosmos flight controllers conducted a successful test of the Soyuz MS-22 thrusters at 3:08 a.m. EST Friday, December 16, as part of the ongoing evaluation and investigation. The systems that were tested were nominal, and Roscosmos assessments of additional Soyuz systems continue. Temperatures and humidity within the Soyuz spacecraft, which remains docked to the Rassvet module, are within acceptable limits.
NASA is supporting the ongoing investigation with the use of the Canadarm2 robotic arm to provide additional viewing of the Soyuz exterior on Sunday, December 18. To accommodate this change in plans, NASA has postponed the upcoming U.S. spacewalk to install an International Space Station Roll-Out Solar Array , which was originally scheduled for Monday, December 19. The new target date for the spacewalk is Wednesday, December 21.
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