# Cosmos 977
**Wikidata**: [Q12754090](https://www.wikidata.org/wiki/Q12754090)  
**Source**: https://4ort.xyz/entity/cosmos-977

## Summary
Cosmos 977 is a Soviet Strela-1M communications satellite launched on January 10, 1978, using a Kosmos-3M rocket from the Plesetsk Cosmodrome. It was part of a military communications network operated by the Soviet Union.

## Key Facts
- **Class:** Strela-1M (military communications satellite)
- **Launch Date:** January 10, 1978
- **Launch Vehicle:** Kosmos-3M (Russian rocket)
- **Launch Site:** Plesetsk Cosmodrome Site 132
- **Launch Time:** 20:51:00 UTC
- **COSPAR ID:** 1978-005B
- **Serial Number (SCN):** 10584
- **Country of Origin:** Soviet Union
- **Sitelink Count:** 3 (Wikipedia in mk, sh, sr)

## FAQs
### Q: What type of satellite was Cosmos 977?
A: Cosmos 977 was a Strela-1M satellite, a type designed for military communications by the Soviet Union.

### Q: When and where was Cosmos 977 launched?
A: Cosmos 977 was launched on January 10, 1978, at 20:51:00 UTC from Plesetsk Cosmodrome Site 132 using a Kosmos-3M rocket.

### Q: What is the COSPAR ID for Cosmos 977?
A: The COSPAR ID assigned to Cosmos 977 is 1978-005B.

## Why It Matters
Cosmos 977 represents a significant component of the Soviet Union's Cold War-era military communications infrastructure. As a Strela-1M satellite, it was part of a constellation designed to provide secure, strategic communication links for Soviet military forces. These satellites played a crucial role in command and control operations during a period of heightened geopolitical tension. Understanding Cosmos 977 provides insight into the technological capabilities and strategic priorities of the Soviet military during the late 1970s, contributing to the broader historical record of space-based military systems and their operational deployment.

## Notable For
- Being a specific instance of the Strela-1M military communications satellite class.
- Launching on January 10, 1978, at a precise time (20:51:00 UTC).
- Utilizing the Kosmos-3M launch vehicle from the Plesetsk Cosmodrome Site 132.
- Having the unique identifier 1978-005B in the COSPAR satellite catalog.

## Body
### Identity
- Cosmos 977 is the common name for the satellite with serial number 10584.
- It is classified as an instance of the Strela-1M satellite class.
- Its COSPAR ID is 1978-005B.

### Launch Details
- **Date:** January 10, 1978
- **Time:** 20:51:00 UTC
- **Location:** Plesetsk Cosmodrome Site 132
- **Vehicle:** Kosmos-3M rocket
- **Event Type:** Rocket Launch

### Technical Classification
- **Primary Class:** Strela-1M
- **Country of Origin:** Soviet Union
- **Wikipedia Presence:** Articles exist in Macedonian (mk), Serbo-Croatian (sh), and Serbian (sr).
- **Wolfram Entity:** Entity["Satellite", "10584"]

## References

1. Jonathan's Space Report