# Progress M-UM

> modified Progress spacecraft used to deliver the Prichal module to the ISS

**Wikidata**: [Q102145990](https://www.wikidata.org/wiki/Q102145990)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Progress_M-UM)  
**Source**: https://4ort.xyz/entity/progress-m-um

## Summary
Progress M-UM is a modified variant of the Progress-M cargo spacecraft designed specifically to deliver the Prichal docking module to the International Space Station (ISS). Launched on November 24, 2021, it successfully docked with the ISS two days later, carrying the Prichal module to expand the station’s Russian segment.

## Key Facts
- **Mission**: Delivered the Prichal module to the ISS as part of the Russian space program  
- **Launch Date**: November 24, 2021 at 13:06:35 UTC  
- **Docking Date**: November 26, 2021 at 15:19 UTC with the Nauka module's zenith port  
- **Launch Site**: Baikonur Cosmodrome Site 31  
- **Launch Vehicle**: Soyuz-2.1b with serial number Я15000-054  
- **Manufacturer**: S.P. Korolev Rocket and Space Corporation Energia  
- **Operator**: Roscosmos State Corporation  
- **Mass (Launch Weight)**: 8,180 kg  
- **Dimensions**: Length 7.23 m; Diameter 3.60 m; Solar Array Width 10.7 m  
- **COSPAR ID**: 2021-111A  

## FAQs
### Q: What was the purpose of the Progress M-UM mission?
A: The primary purpose of Progress M-UM was to transport and deploy the Prichal spherical docking module to the International Space Station. It served as both a delivery vehicle and a propulsion unit during the journey.

### Q: When did Progress M-UM launch and dock with the ISS?
A: Progress M-UM launched on November 24, 2021, and successfully docked with the ISS on November 26, 2021.

### Q: How does Progress M-UM differ from standard Progress spacecraft?
A: Progress M-UM is a modified version of the Progress-M class, adapted specifically to carry and deploy the Prichal module. Unlike typical resupply missions, this variant functioned more like a tug for orbital deployment.

## Why It Matters
The Progress M-UM played a critical role in expanding the capabilities of the International Space Station by delivering the Prichal module, which provides additional docking ports for future Russian modules and visiting vehicles. Its successful deployment marked a key milestone in the continued development of the Russian segment of the ISS. As a specialized variant of the long-standing Progress series, it demonstrated adaptability in spacecraft design to meet evolving mission requirements. This mission also underscored Russia's ongoing commitment to maintaining and enhancing its orbital infrastructure through targeted logistical support.

## Notable For
- First use of a modified Progress spacecraft as a dedicated deployment vehicle for a major ISS structural component  
- Successful execution of a complex dual-role mission: transportation and orbital insertion  
- Integral to the completion of the Russian segment expansion via the addition of the Prichal node  
- Utilized advanced Soyuz-2.1b launch system for precise orbital delivery  
- Demonstrated capability to perform automated docking maneuvers with newly installed modules  

## Body
### Mission Overview
Progress M-UM was developed exclusively to deliver the Prichal docking module to the International Space Station. Unlike regular Progress resupply flights, this variant functioned primarily as a propulsion stage and deployment platform rather than a traditional cargo carrier.

### Launch Details
- **Date**: November 24, 2021  
- **Time**: 13:06:35 UTC  
- **Location**: Baikonur Cosmodrome Site 31  
- **Vehicle**: Soyuz-2.1b rocket (serial no. Я15000-054)  
- **Payload**: Prichal module integrated within the Progress M-UM upper stage  

### Docking Event
- **Date**: November 26, 2021  
- **Time**: 15:19 UTC  
- **Target Module**: Nauka Multipurpose Laboratory Module  
- **Port Used**: Zenith-facing port  
- **Significance**: Enabled permanent attachment of the Prichal module to the ISS  

### Technical Specifications
- **Spacecraft Class**: Modified Progress-M  
- **Serial Number**: 11Ф615 No. 303  
- **Launch Mass**: 8,180 kg  
- **Length**: 7.23 meters  
- **Diameter**: 3.60 meters  
- **Solar Array Span**: 10.7 meters  
- **Manufacturer**: RKK Energia  
- **Operator**: Roscosmos  

### Operational Sequence
1. Launched alongside the Prichal module attached to the forward section of the Progress M-UM  
2. Performed orbital maneuvers en route to the ISS over approximately two days  
3. Executed autonomous docking sequence with the Nauka MLM  
4. Transferred the Prichal module into position and detached after securing mechanical and electrical interfaces  
5. Deorbited safely post-mission per standard disposal protocols  

This configuration allowed for streamlined integration and deployment without requiring extravehicular activity or manual intervention from the crew aboard the ISS.

## References

1. [Source](https://www.roscosmos.ru/33140/)
2. [Source](http://www.parabolicarc.com/2021/11/24/prichal-node-module-launched-to-international-space-station/)
3. [Source](http://www.russianspaceweb.com/iss_node.html)
4. Jonathan's Space Report
5. [Source](https://spaceflightnow.com/2021/11/26/russian-node-module-docks-with-international-space-station/)
6. [Source](https://www.nasaspaceflight.com/2021/11/prichal-launch/)