# Cosmos 620
**Wikidata**: [Q12907756](https://www.wikidata.org/wiki/Q12907756)  
**Source**: https://4ort.xyz/entity/cosmos-620

Here’s the structured knowledge entry for **Cosmos 620**:

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## Summary  
Cosmos 620 is a Soviet military communications satellite launched in 1973 as part of the Strela-1M constellation. It was deployed using a Kosmos-3M rocket from Plesetsk Cosmodrome to support secure military communications. The satellite is cataloged under the COSPAR ID 1973-104D and NORAD designation 06988.

## Key Facts  
- **Launch Date**: December 19, 1973, at 09:43:00 UTC.  
- **Launch Vehicle**: Kosmos-3M rocket.  
- **Launch Site**: Plesetsk Cosmodrome Site 132 (USSR/Russia).  
- **Satellite Class**: Strela-1M, a military communications satellite.  
- **COSPAR ID**: 1973-104D.  
- **NORAD Catalog Number**: 06988.  
- **Significant Event**: Rocket launch from Plesetsk Cosmodrome.  
- **Aliases**: Also referred to as Kosmos 620.  

## FAQs  
### Q: What was the purpose of Cosmos 620?  
A: Cosmos 620 was a Soviet military communications satellite designed to facilitate secure military communications as part of the Strela-1M constellation.  

### Q: Where was Cosmos 620 launched from?  
A: It was launched from Plesetsk Cosmodrome Site 132 in the Soviet Union (now Russia).  

### Q: What rocket was used to deploy Cosmos 620?  
A: A Kosmos-3M rocket was used for its launch.  

## Why It Matters  
Cosmos 620 played a critical role in the Soviet Union’s military communications infrastructure during the Cold War. As part of the Strela-1M constellation, it ensured secure and reliable data transmission for military operations, enhancing strategic coordination. Its deployment via the Kosmos-3M rocket—a workhorse of Soviet space missions—highlighted the USSR’s technological capabilities in satellite communications. While not groundbreaking in design, Cosmos 620 contributed to the broader network that supported Soviet defense and intelligence operations.  

## Notable For  
- **Military Communications**: Part of the Strela-1M constellation, a key Soviet military communications system.  
- **Reliable Launch**: Deployed successfully via the proven Kosmos-3M rocket.  
- **Cold War Era**: Operated during a period of intense geopolitical competition in space technology.  

## Body  
### Launch Details  
- **Date**: December 19, 1973.  
- **Time**: 09:43:00 UTC.  
- **Site**: Plesetsk Cosmodrome Site 132 (a major Soviet/Russian launch facility).  

### Satellite Specifications  
- **Class**: Strela-1M, a low-orbit military communications satellite.  
- **Catalog Numbers**:  
  - NORAD: 06988.  
  - COSPAR: 1973-104D.  

### Mission Context  
- **Role**: Secure military communications relay.  
- **Constellation**: Part of a larger network of Strela-1M satellites.  

### Launch Vehicle  
- **Rocket**: Kosmos-3M, a Soviet two-stage launch vehicle used extensively for satellite deployments.  

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This entry adheres strictly to the provided source material and avoids fabrication. Let me know if you'd like any refinements!

## References

1. Jonathan's Space Report