# Cosmos 1620
**Wikidata**: [Q13566673](https://www.wikidata.org/wiki/Q13566673)  
**Source**: https://4ort.xyz/entity/cosmos-1620

## Summary
Cosmos 1620 is a Strela-3 military communications satellite launched by the Soviet Union in 1985 to support secure communications for Ukrainian and Soviet forces. It was deployed via a Tsyklon-3 rocket from Plesetsk Cosmodrome, forming part of a constellation of satellites designed for strategic military communications.

## Key Facts
- **Launch Date**: January 15, 1985
- **COSPAR ID**: 1985-003D
- **Satellite Catalog Number (SCN)**: 15472
- **Launch Vehicle**: Tsyklon-3 expendable launch vehicle
- **Launch Site**: Plesetsk Cosmodrome Site 32
- **Class**: Strela-3 military communications satellite
- **Launch Time**: 14:50:59 UTC on January 15, 1985

## FAQs
### Q: What was the purpose of Cosmos 1620?
A: Cosmos 1620 was a military communications satellite designed to provide secure communication services for Soviet and Ukrainian forces as part of the Strela-3 constellation.

### Q: When and where was Cosmos 1620 launched?
A: It was launched on January 15, 1985, at 14:50:59 UTC from Plesetsk Cosmodrome Site 32 in Russia.

### Q: What rocket was used to deploy Cosmos 1620?
A: The satellite was launched using the Tsyklon-3, a Soviet/Ukrainian expendable launch vehicle.

## Why It Matters
Cosmos 1620 represents a critical component of Soviet and Ukrainian military infrastructure during the Cold War era. As part of the Strela-3 satellite constellation, it contributed to secure and reliable communication networks essential for strategic operations. The use of the Tsyklon-3 launch vehicle underscores its role in advancing Soviet space technology, which influenced later Ukrainian space programs. While individual Strela-3 satellites like Cosmos 1620 were not publicly detailed, their collective impact highlights the integration of space-based assets into military communications, a practice that remains vital today.

## Notable For
- **Strela-3 Constellation Member**: Part of a network of satellites designed for low-orbit military communications.
- **Tsyklon-3 Launch**: Utilized a rocket known for deploying satellites and other payloads during the Soviet space program.
- **Plesetsk Cosmodrome Launch Site**: Originated from a key Russian launch facility used for military and civilian space missions.
- **Cold War-Era Technology**: Exemplifies Soviet advancements in military satellite systems during the 1980s.

## Body
### Launch Details
- **Date and Time**: Cosmos 1620 launched on January 15, 1985, at 14:50:59 UTC.
- **Launch Vehicle**: The Tsyklon-3 rocket, a Soviet/Ukrainian expendable launch system, was used for deployment.
- **Launch Site**: The satellite originated from Plesetsk Cosmodrome Site 32 in northwestern Russia.

### Satellite Specifications
- **Class**: Strela-3, a type of Ukrainian military communications satellite.
- **Identifiers**:
  - **COSPAR ID**: 1985-003D
  - **Satellite Catalog Number (SCN)**: 15472

### Mission Context
- **Purpose**: To provide secure communications support for military operations as part of the broader Strela-3 satellite network.
- **Historical Significance**: Reflects Soviet reliance on space-based assets for military logistics and coordination during the Cold War.

## References

1. Jonathan's Space Report