# Progress M-28M

> International Space Station (ISS) resupply mission

**Wikidata**: [Q20639832](https://www.wikidata.org/wiki/Q20639832)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Progress_M-28M)  
**Source**: https://4ort.xyz/entity/progress-m-28m

## Summary
Progress M-28M was a Russian spacecraft that successfully resupplied the International Space Station (ISS) in 2015, following the failed Progress M-27M mission. Operated by Roscosmos, it launched aboard a Soyuz-U rocket and docked at the Pirs module, ensuring critical supplies reached the ISS crew. The mission demonstrated the reliability of the Progress-M spacecraft class.

## Key Facts
- **Mission Type**: ISS resupply mission (2015).
- **Launch Date**: July 3, 2015, from Gagarin's Start (Baikonur Cosmodrome).
- **Operator**: Roscosmos State Corporation.
- **Spacecraft Class**: Progress-M (serial number 40713).
- **Launch Vehicle**: Soyuz-U rocket.
- **Docking Date**: July 5, 2015, at the Pirs docking port.
- **Orbit Decay**: Re-entered Earth's atmosphere on December 19, 2015.
- **COSPAR ID**: 2015-031A.
- **Preceded By**: Progress M-27M (unsuccessful mission).
- **Followed By**: Progress M-29M.

## FAQs
### Q: What was the purpose of Progress M-28M?
A: Progress M-28M was launched to deliver critical supplies, including food, fuel, and equipment, to the International Space Station, ensuring the crew's continued operations.

### Q: Why was this mission significant?
A: It was the first successful ISS resupply mission after the failure of Progress M-27M in April 2015, restoring reliable cargo delivery to the station.

### Q: How long did the spacecraft remain docked to the ISS?
A: Progress M-28M remained attached to the ISS for approximately 5.5 months before undocking and deorbiting on December 19, 2015.

## Why It Matters
Progress M-28M played a vital role in sustaining the ISS crew by delivering essential resources after the preceding mission's failure. Its success underscored the dependability of the Progress-M spacecraft and Soyuz-U rocket, which were cornerstones of Russia's space logistics capabilities. The mission ensured uninterrupted scientific research and crew survival aboard the ISS, highlighting the importance of robust resupply systems in long-duration spaceflight. Without such missions, the ISS could not function, making Progress M-28M a key contributor to international space cooperation and exploration.

## Notable For
- First successful ISS resupply mission after the Progress M-27M failure.
- Utilized the Pirs docking port, a primary Russian module for cargo and crew transfers.
- Operated during a critical period for ISS logistics, ensuring crew safety and mission continuity.
- Part of the long-serving Progress-M class, which conducted dozens of resupply flights from 1989 to 2016.

## Body
### Launch and Deployment
- **Launch Vehicle**: Soyuz-U (a variant of the Soyuz rocket family).
- **Launch Site**: Gagarin's Start (Site No. 1/5) at Baikonur Cosmodrome.
- **Date**: July 3, 2015.
- **Payload**: Supplies for the ISS crew, including food, water, air, and propellant.

### Docking and Operations
- **Docking Port**: Pirs (a Russian module on the ISS).
- **Docking Date**: July 5, 2015, two days after launch.
- **Undocking**: December 19, 2015, followed by controlled atmospheric re-entry.

### Mission Context
- **Predecessor**: Progress M-27M, which failed shortly after launch in April 2015 due to a propulsion system malfunction.
- **Successor**: Progress M-29M, launched in October 2015.
- **Operator**: Roscosmos, the Russian state space agency responsible for crewed spaceflight programs.

### Technical Specifications
- **Spacecraft Class**: Progress-M (a modified version of the Soyuz spacecraft).
- **COSPAR ID**: 2015-031A (international designation for Earth-orbiting objects).
- **Decay Date**: December 19, 2015, marking its safe disposal over the Pacific Ocean.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "Progress M-28M",
  "description": "International Space Station (ISS) resupply mission",
  "url": "https://en.wikipedia.org/wiki/Progress_M-28M",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q20011507",
    "https://en.wikipedia.org/wiki/Progress_M-28M"
  ],
  "additionalType": "Spacecraft",
  "manufacturer": "Roscosmos State Corporation",
  "dateLaunched": "2015-07-03",
  "cosparId": "2015-031A"
}

## References

1. Jonathan's Space Report
2. [Source](http://www.federalspace.ru/21560/)