Progress MS-21

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Progress MS-21
NamesProgress 82P
Mission typeISS resupply
OperatorRoscosmos
Mission duration324 days, 9 hours and 7 minutes (247 days planned)
Spacecraft properties
SpacecraftProgress MS-21 no.451
Spacecraft typeProgress MS
ManufacturerEnergia
Launch mass7000 kg
Payload mass2.8 tons
Start of mission
Launch date26 October 2022, 00:20:09
RocketSoyuz-2.1a
Launch siteBaikonur, Site 31
ContractorProgress Rocket Space Centre
End of mission
DisposalDeorbited (planned)
Decay date2022 (planned)
Orbital parameters
Reference systemGeocentric orbit
RegimeLow Earth orbit
Inclination51.65°
Docking with ISS
Docking portPoisk zenith
Docking date28 October 2022, 02:49:03 UTC
Time docked322 days, 6 hours and 38 minutes (247 days planned)
Payload
Cargo and SCCS part of MLM Means of Attachment of Large payloads
Progress ISS Resupply
 

Progress MS-21 (Russian: Прогресс МC-21), Russian production No.451, identified by NASA as Progress 82P, is a Progress spaceflight launched by Roscosmos to resupply the International Space Station (ISS). It is the 174th flight of a Progress spacecraft.

History

The Progress-MS is an uncrewed freighter based on the Progress-M featuring improved avionics. This improved variant first launched on 21 December 2015. It has the following improvements:[1][2][3][4]

  • New external compartment that enables it to deploy satellites. Each compartment can hold up to four launch containers. First time installed on Progress MS-03.
  • Enhanced redundancy thanks to the addition of a backup system of electrical motors for the docking and sealing mechanism.
  • Improved Micrometeoroid (MMOD) protection with additional panels in the cargo compartment.
  • Luch Russian relay satellites link capabilities enable telemetry and control even when not in direct view of ground radio stations.
  • GNSS autonomous navigation enables real time determination of the status vector and orbital parameters dispensing with the need of ground station orbit determination.
  • Real time relative navigation thanks to direct radio data exchange capabilities with the space station.
  • New digital radio that enables enhanced TV camera view for the docking operations.
  • Unified Command Telemetry System (UCTS) replaces previous Ukrainian Chezara Kvant-V as the Progress spacecraft's on-board radio and antenna/feeder system.
  • Replacement of the Kurs A with Kurs NA digital system.

Launch

On 3 February 2021, the State Commission for Testing of the Piloted Space Systems, chaired by Roskosmos head Dmitry Rogozin, approved the latest ISS schedule for 2021 and the first quarter of 2022.

A Soyuz-2.1a launched Progress MS-21 to the International Space Station from Baikonur Site 31 on 26 October 2022. Around 2 days after the launch, Progress MS-21 automatically docked with Poisk and continues its mission, supporting Expedition 68 aboard the ISS.

Cargo

The MS-21 cargo capacity is 2,520 kg (5,560 lb) as follows:

  • Dry cargo: 1,357 kg (2,992 lb)
  • Fuel: 702 kg (1,548 lb)
  • Nitrogen: 41 kg (90 lb)
  • Water: 420 kg (930 lb)

Means of attachment of large payloads

It also delivered SCCS part of MLM Means of Attachment of Large payloads to ISS. It is a 4 segment external payload interface called means of attachment of large payloads (Sredstva Krepleniya Krupnogabaritnykh Obyektov, SKKO)[5][6][7][8][9] According to plans, once the nadir end of SKKO was soft docked to Nauka and bolted down, the launch locks on SKKO would 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 would be soft docked to Nauka and bolted down. The three passive payload adapters and the one active payload adapter (i.e. active remote sensing payload like MIR Priroda's Travers Synthetic Aperture Radar) would then be outfitted. The SKKO was derived from the setup used on the Priroda module.[10] SKKO will be launched inside the Progress spacecraft and transferred to a temporary storage location inside one of the station modules. It would be taken outside and installed on the aft facing side of Nauka during the VKD-60 spacewalk.[11][12] LCCS part of MLM Means of Attachment of Large payloads was delivered to ISS by Progress MS-18 spacecraft.[13]

See also

References

  1. ^ Krebs, Gunter (1 December 2015). "Progress-MS 01-19". Gunter's Space Page. Retrieved 3 October 2020.
  2. ^ "Progress MS-20". NSSDCA. NASA. 10 February 2021. Retrieved 2 April 2021. Public Domain This article incorporates text from this source, which is in the public domain.
  3. ^ Zak, Anatoly. "Progress-MS cargo ship series". RussianSpaceWeb. Retrieved 3 October 2020.
  4. ^ Blau, Patrick (1 December 2015). "Progress MS Spacecraft". Spaceflight101. Retrieved 17 November 2020.
  5. ^ "Schedule of ISS flight events (part 2)". forum.nasaspaceflight.com. Retrieved 31 July 2022.
  6. ^ "Год «Науки» на МКС".
  7. ^ "Sredstva Krepleniya Krupnogabaritnykh Obyektov, SKKO".
  8. ^ "The Russian Nauka/Multipurpose Laboratory Module (MLM) General Thread". forum.nasaspaceflight.com. Retrieved 25 March 2022.
  9. ^ "Russia to bump its ISS crew back to three". www.russianspaceweb.com. Retrieved 25 March 2022.
  10. ^ Roscosmos. "MLM-U Structure diagram". Everydayastronaut.com.
  11. ^ "VKD-59 spacewalk".
  12. ^ https://forum.nasaspaceflight.com/assets/23444.0/2094824.jpg[bare URL image file]
  13. ^ "The Russian Nauka/Multipurpose Laboratory Module (MLM) General Thread". forum.nasaspaceflight.com. Retrieved 15 October 2022.


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