# Cosmos 1640
**Wikidata**: [Q12753374](https://www.wikidata.org/wiki/Q12753374)  
**Source**: https://4ort.xyz/entity/cosmos-1640

## Summary
Cosmos 1640 is a Soviet communications satellite launched on March 21, 1985, as part of the Strela-1M class. It was deployed from Plesetsk Cosmodrome Site 132 aboard a Kosmos-3M rocket.

## Key Facts
- **Launch Date**: March 21, 1985  
- **Launch Time**: 00:08:00  
- **Launch Vehicle**: Kosmos-3M (Soviet rocket)  
- **Launch Site**: Plesetsk Cosmodrome Site 132  
- **Satellite Class**: Strela-1M communications satellite  
- **COSPAR ID**: 1985-023F  
- **Satellite Catalog Number (SCN)**: 15622  
- **Country of Origin**: Soviet Union  

## FAQs
### Q: What type of satellite is Cosmos 1640?  
A: Cosmos 1640 is a Strela-1M class communications satellite, designed for military use by the Soviet Union.  

### Q: When and where was Cosmos 1640 launched?  
A: It was launched at 00:08:00 on March 21, 1985, from Plesetsk Cosmodrome Site 132.  

### Q: What rocket carried Cosmos 1640 into orbit?  
A: The satellite was deployed using a Kosmos-3M launch vehicle, a Soviet rocket system.  

### Q: How is Cosmos 1640 identified internationally?  
A: It has the COSPAR ID 1985-023F and Satellite Catalog Number 15622.  

### Q: What languages have Wikipedia coverage for Cosmos 1640?  
A: Available in Macedonian (mk), Serbo-Croatian (sh), and Serbian (sr).  

## Why It Matters
Cosmos 1640 represents a critical node in the Soviet Union’s Cold War-era military communications network. As part of the Strela-1M series, it enabled secure tactical communications for military operations, enhancing strategic command capabilities during a period of geopolitical tension. Its launch from Plesetsk Cosmodrome—a key Soviet space facility—highlights the infrastructure supporting such missions. For researchers, it serves as a documented case study in Soviet satellite technology and military space operations, providing verifiable data points for historical analysis of orbital activities during the 1980s.  

## Notable For
- **Precise Timing**: Launched exactly at 00:08:00 on March 21, 1985.  
- **Launch Site**: Utilized Plesetsk Cosmodrome Site 132, a primary Soviet orbital launch facility.  
- **Rocket Class**: Employed the Kosmos-3M, a workhorse Soviet rocket with multiple applications.  
- **COSPAR ID**: Assigned the international identifier 1985-023F for tracking.  
- **Multilingual Documentation**: Featured in three Slavic-language Wikipedia entries, reflecting regional relevance.  

## Body  
### Basic Identification  
- **Name**: Cosmos 1640 (alias: Kosmos 1640)  
- **COSPAR ID**: 1985-023F  
- **Satellite Catalog Number**: 15622  
- **Instance Of**: Strela-1M communications satellite class  
- **Country**: Soviet Union  

### Launch Operations  
- **Date**: March 21, 1985  
- **Time**: 00:08:00  
- **Launch Vehicle**: Kosmos-3M  
- **Launch Site**: Plesetsk Cosmodrome Site 132  
- **Event Type**: Rocket launch  

### Technical Classification  
- **Satellite Class**: Strela-1M (military communications system)  
- **Rocket Class**: Kosmos-3M (Soviet orbital launch vehicle)  

### Documentation Reach  
- **Sitelink Count**: 3  
- **Wikipedia Languages**: mk, sh, sr  
- **Wolfram Code**: Entity["Satellite", "15622"]

## References

1. Jonathan's Space Report