# Progress M-27M

> unsuccessful attempt to resupply the International Space Station

**Wikidata**: [Q19839265](https://www.wikidata.org/wiki/Q19839265)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Progress_M-27M)  
**Source**: https://4ort.xyz/entity/progress-m-27m

## Summary
Progress M-27M was a Progress-M cargo spacecraft operated by Roscosmos that attempted to resupply the International Space Station but was unsuccessful.

## Key Facts
- It was a Progress-M class cargo spacecraft operated by Roscosmos State Corporation.
- Launched on April 28, 2015, from Baikonur Cosmodrome Site 31 using a Soyuz-2.1a rocket.
- Its COSPAR ID is 2015-024A, and it followed the Progress M-26M mission.
- It followed by the Progress M-28M mission.
- The spacecraft experienced atmospheric entry and orbit decay on May 8, 2015.
- It docked at the Pirs docking port of the ISS.
- It had 14 sitelink counts across multiple languages.

### FAQs
### Q: What was the outcome of the Progress M-27M mission?
A: The Progress M-27M mission was an unsuccessful attempt to resupply the International Space Station.

### Q: When did the Progress M-27M launch?
A: It launched on April 28, 2015, from Baikonur Cosmodrome Site 31.

### Q: Which rocket launched the Progress M-27M spacecraft?
A: The Soyuz-2.1a rocket launched the Progress M-27M spacecraft.

## Why It Matters
The Progress M-27M mission is significant as an example of a failed resupply attempt for the International Space Station, highlighting the risks and challenges in space logistics. Its failure provided valuable data and lessons for future Progress-M missions, contributing to the safety and reliability of ISS resupply operations. The mission underscored the importance of rigorous pre-launch checks and in-flight monitoring to prevent such failures, influencing the operational protocols for Russian cargo spacecraft.

## Notable For
- It was the 27th Progress-M mission to attempt ISS resupply, though it failed to complete its primary objective.
- It utilized the Soyuz-2.1a launch vehicle, a modernized version of the Soyuz rocket family.
- The spacecraft docked at the Pirs module, a critical docking port for Russian cargo and crewed vehicles.
- Its orbit decay and atmospheric entry on May 8, 2015, marked the end of its operational life, with the debris reentering Earth's atmosphere.

## Body
### Launch and Initial Phase
Progress M-27M, a Progress-M class cargo spacecraft, was launched on April 28, 2015, from Site 31 at the Baikonur Cosmodrome. Operated by Roscosmos State Corporation, it used the Soyuz-2.1a rocket as its launch vehicle. The mission's primary goal was to resupply the International Space Station (ISS).

### Docking Attempt and Failure
The spacecraft successfully reached orbit and proceeded toward the ISS. However, it encountered an issue during the docking attempt, resulting in an unsuccessful resupply mission. The mission did not achieve its primary objective of delivering cargo to the ISS.

### Atmospheric Entry and Decay
Following the failure, the spacecraft's orbit decayed, leading to atmospheric entry on May 8, 2015. The debris reentered Earth's atmosphere, marking the end of its operational lifespan.

### Technical and Operational Context
As a Progress-M spacecraft, M-27M belonged to a series of cargo vehicles designed specifically for ISS resupply. It followed the Progress M-26M mission and was succeeded by the Progress M-28M mission. The Pirs docking port, where it was intended to dock, is a key component for Russian spacecraft operations at the ISS.

```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "Progress M-27M",
  "description": "A Progress-M cargo spacecraft operated by Roscosmos that attempted to resupply the International Space Station but was unsuccessful.",
  "sameAs": ["https://www.wikidata.org/wiki/Q6272367", "https://en.wikipedia.org/wiki/Progress_M-27M"]
}

## References

1. Jonathan's Space Report