# Cosmos 1139
**Wikidata**: [Q12753126](https://www.wikidata.org/wiki/Q12753126)  
**Source**: https://4ort.xyz/entity/cosmos-1139

## Summary
Cosmos 1139 was a Soviet satellite launched on October 5, 1979, using a Soyuz-U rocket from the Plesetsk Cosmodrome. It was an instance of the Zenit-4MT class, a type of satellite designed for space missions. The launch occurred at 11:30 UTC from Site 41 at the Plesetsk Cosmodrome.

## Key Facts
- **Launch Date**: October 5, 1979
- **Launch Vehicle**: Soyuz-U
- **Launch Site**: Plesetsk Cosmodrome Site 41
- **Class**: Zenit-4MT
- **COSPAR ID**: 1979-088A
- **SCN (NORAD ID)**: 11564
- **Country of Origin**: Soviet Union
- **Significant Event**: Rocket launch at 11:30 UTC on October 5, 1979

## FAQs
### Q: What type of satellite was Cosmos 1139?
A: Cosmos 1139 was an instance of the Zenit-4MT class, a Soviet satellite designed for space missions.

### Q: Which rocket was used to launch Cosmos 1139?
A: The satellite was launched using a Soyuz-U rocket from the Plesetsk Cosmodrome on October 5, 1979.

### Q: Where was Cosmos 1139 launched from?
A: Cosmos 1139 was launched from Plesetsk Cosmodrome Site 41 in the Soviet Union.

### Q: What was the COSPAR ID of Cosmos 1139?
A: The COSPAR ID for Cosmos 1139 is 1979-088A.

### Q: What is the SCN (NORAD ID) of Cosmos 1139?
A: The SCN (NORAD ID) for Cosmos 1139 is 11564.

## Why It Matters
Cosmos 1139 represents a significant entry in the Soviet space program, utilizing the Zenit-4MT class of satellites and the reliable Soyuz-U launch vehicle. Launched from the Plesetsk Cosmodrome, it contributed to the Soviet Union's efforts in space exploration and satellite deployment. The mission, while not widely publicized, was part of a broader initiative to advance Soviet space capabilities. The satellite's classification as Zenit-4MT indicates its role in a specific type of space mission, likely involving reconnaissance or communications. The successful launch and deployment of Cosmos 1139 demonstrate the Soviet Union's technological prowess and commitment to maintaining a strong presence in space during the Cold War era.

## Notable For
- **First Launch of Zenit-4MT Class**: Cosmos 1139 was the first known instance of the Zenit-4MT satellite class, marking its debut in space.
- **Soyuz-U Utilization**: The mission leveraged the Soyuz-U rocket, a proven launch vehicle in Soviet space operations.
- **Plesetsk Cosmodrome Deployment**: The launch from Plesetsk Cosmodrome Site 41 highlights the site's role in Soviet space missions.
- **Cold War Space Activity**: The satellite's existence is tied to the Soviet Union's broader space activities during the Cold War.
- **Zenit-4MT Design**: The Zenit-4MT class, of which Cosmos 1139 was a member, was likely designed for specific space applications, such as reconnaissance or communications.

## Body
### Overview
Cosmos 1139 is a Soviet satellite launched on October 5, 1979, as part of the Cosmos series. It was an instance of the Zenit-4MT class, a type of satellite designed for space missions. The launch vehicle used was the Soyuz-U, a variant of the Soyuz rocket family. The satellite was deployed from Plesetsk Cosmodrome Site 41, a key launch site in the Soviet Union.

### Launch Details
- **Date**: October 5, 1979
- **Time**: 11:30 UTC
- **Launch Site**: Plesetsk Cosmodrome Site 41
- **Launch Vehicle**: Soyuz-U
- **COSPAR ID**: 1979-088A
- **SCN (NORAD ID)**: 11564

### Classification and Design
- **Class**: Zenit-4MT
- **Country of Origin**: Soviet Union
- **Aliases**: Kosmos 1139

### Significance
Cosmos 1139 is notable for its association with the Zenit-4MT satellite class and the Soyuz-U launch vehicle. The mission contributed to the Soviet Union's space program, demonstrating the country's capability in satellite deployment and space exploration. The satellite's classification as Zenit-4MT suggests it was designed for a specific purpose, likely involving reconnaissance or communications. The launch from Plesetsk Cosmodrome further underscores the site's importance in Soviet space operations.

### References and Sources
- **Wikidata**: Q6272367
- **COSPAR**: Q200386
- **Wolfram Language Entity**: Entity["Satellite", "11564"]

## References

1. Jonathan's Space Report