Progress MS-18 explained

Progress MS-18

Names List:

Progress 79P

Mission Type:

ISS resupply

Operator:

Roscosmos

Cospar Id:

2021-098A

Satcat:

49379

Website:

https://www.roscosmos.ru/

Spacecraft:

Progress MS-18 No. 447

Spacecraft Bus:

Progress MS

Manufacturer:

KSC Energia

Launch Date:

28 October 2021, 00:00:32 UTC^[1]

Launch Rocket:

Soyuz-2.1a

Launch Site:

Baikonur, Site 31/6

Launch Contractor:

Progress Rocket Space Centre

Disposal Type:

Deorbited

Decay Date:

1 June 2022, 11:51 UTC

Orbit Reference:

Geocentric orbit

Orbit Regime:

Low Earth orbit

Orbit Inclination:

51.65°

Apsis:

gee

Docking:

Docking Type:	dock
Docking Port:	Zvezda aft
Docking Date:	30 October 2021, 01:31:19 UTC
Undocking Date:	1 June 2022, 08:03 UTC

Payload Items:

Cargo and LCCS part of MLM Means of Attachment of Large payloads

Insignia Size:

200px

Programme:

Progress ISS Resupply

Previous Mission:

Progress MS-17

Next Mission:

Progress M-UM

Progress MS-18, Russian production No. 447, identified by NASA as Progress 79P, was a Progress spaceflight operated by Roscosmos to resupply the International Space Station (ISS). This was the 170th 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:

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.
The Ukrainian Chezara Kvant-V on board radio system and antenna/feeder system has been replaced with a Unified Command Telemetry System (UCTS).
Replacement of the Kurs A with Kurs NA digital system.

Launch

On 3 February 2021, Roskosmos approved the updated flight program to the International Space Station for 2021, highlighted with the addition of two permanent modules to the Russian Segment of the outpost. A short tourist visit to the ISS at the end of the year also got the green light.

A Soyuz-2.1a launched Progress MS-18 to the International Space Station from Baikonur Site 31 on 28 October 2021 on a two-day, 36 orbit rendezvous profile. If the air leak repairs planned for Zvezda's PrK chamber (delivery of sealing patches aboard Progress MS-16 in February 2021) were successful, then 3 hours 20 minutes after the launch Progress MS-18 would have attempted to automatically dock to Zvezda's aft port.

The vehicle docked to the aft port of the Zvezda Service Module (SM), on 30 October 2021, at 01:31:19 UTC, and was planned to remain in orbit for 215 days, supporting the Expedition 66 mission aboard the ISS.^[2]

Cargo

The Progress MS-18 spacecraft was loaded with of cargo, with of this being dry cargo.^[3]

Dry cargo:
Fuel:
Oxygen:
Water:

Means of attachment of large payloads

It delivered LCCS part of MLM Means of Attachment of Large payloads (Sredstva Krepleniya Krupnogabaritnykh Obyektov, SKKO) work platform to ISS.^[4] ^[5] ^[6] Coupled with SCCS part of this MLM outfitting,^[7] delivered to ISS by Progress MS-21, during VKD-55 spacewalk, it was transferred over to Nauka and installed it at the ERA base point facing aft where ERA use to be when it was launched, where it will be used to mount payloads on the exterior of Nauka module.^[8] ^[9] ^[10] ^[11]

Undocking and decay

The Progress MS-18 remained docked at the station until 1 June 2022, when it departed with trash and re-entered the Earth's atmosphere for destruction over the South Pacific Ocean.

Notes and References

Web site: Progress MS-17 to make 24 hour long relocation at space station. NASASpaceFlight.com. 20 October 2021. 21 October 2021.
Web site: Russian cargo freighter docks with International Space Station . Spaceflight Now. 30 October 2021. 30 October 2021.
Web site: Russian Progress supply ship poised for launch from Baikonur. Spaceflight Now. 27 October 2021. 27 October 2021.
Web site: Год «Науки» на МКС .
Web site: Russia to bump its ISS crew back to three . 2022-03-25 . www.russianspaceweb.com.
Web site: Roscosmos . MLM-U Structure diagram . Everydayastronaut.com.
Web site: Navin . Joseph . 2022-11-17 . Three spacewalks completed across two days on two space stations . 2024-01-30 . NASASpaceFlight.com . en-US.
Web site: Cosmonauts Prep for Thursday Spacewalk, Dragon Targets Monday Launch . Garcia . Mark . 16 November 2022 . blogs.nasa.gov . . 16 November 2022 . live . https://web.archive.org/web/20221210100113/https://blogs.nasa.gov/spacestation/2022/11/16/cosmonauts-prep-for-thursday-spacewalk-dragon-targets-monday-launch/ . 10 December 2022 .
Web site: Cosmonauts Begin First in a Series of Spacewalks for Station Maintenance . Lavelle . Heidi . 17 November 2022 . blogs.nasa.gov . . 17 November 2022 . live . https://web.archive.org/web/20230324123650/https://blogs.nasa.gov/spacestation/2022/11/17/cosmonauts-begin-first-in-a-series-of-spacewalks-for-station-maintenance/ . 24 March 2023 .
Web site: Cosmonauts Finish Spacewalk for Work on Science Module . Garcia . Mark . 17 November 2022 . blogs.nasa.gov . . 17 November 2022 . live . https://web.archive.org/web/20230329110535/https://blogs.nasa.gov/spacestation/2022/11/17/cosmonauts-finish-spacewalk-for-work-on-science-module/ . 29 March 2023 .
News: Russian cosmonauts complete station spacewalk to ready radiator for move . Pearlman . Robert Z. . 17 November 2022 . . 23 November 2022 . live . https://web.archive.org/web/20230331181340/https://www.space.com/iss-spacewalk-russian-radiator-move-prep . 31 March 2023 .