# Cosmos 640
**Wikidata**: [Q12753935](https://www.wikidata.org/wiki/Q12753935)  
**Source**: https://4ort.xyz/entity/cosmos-640

## Summary
Cosmos 640 was a Soviet spy satellite of the Zenit 2M class, launched on April 11, 1974, from Plesetsk Cosmodrome using a Voskhod rocket as part of the Soviet space reconnaissance program.

## Key Facts
- COSPAR ID: 1974-021A
- Launch date: April 11, 1974
- Launch vehicle: Voskhod
- Launch site: Plesetsk Cosmodrome Site 43/4
- Classified serial number: 07245
- Also known as: Kosmos 640
- Satellite class: Zenit 2M (Soviet spy satellite)
- Available in Wikipedia languages: mk, sh, sr
- Site link count: 3

## FAQs
### Q: What was the purpose of Cosmos 640?
A: Cosmos 640 was a Soviet spy satellite designed for reconnaissance purposes as part of the Zenit 2M class in the Soviet space program.

### Q: When and where was Cosmos 640 launched?
A: Cosmos 640 was launched on April 11, 1974, from Plesetsk Cosmodrome Site 43/4 at 12:22:59 using a Voskhod rocket.

### Q: What is the relationship between Cosmos 640 and other Soviet spacecraft?
A: Cosmos 640 is part of the Zenit 2M class of Soviet spy satellites and was launched using the Voskhod launch vehicle, which was also used for crewed Soviet spacecraft.

### Q: In which languages can Cosmos 640 be found on Wikipedia?
A: Wikipedia articles about Cosmos 640 are available in Macedonian (mk), Serbo-Croatian (sh), and Serbian (sr).

## Why It Matters
Cosmos 640 represents a significant component of Soviet reconnaissance satellite technology during the Cold War era. As part of the Zenit 2M class, it contributed to the Soviet Union's intelligence gathering capabilities, providing crucial imagery and data for military and geopolitical purposes. The launch on April 11, 1974, using the Voskhod rocket from Plesetsk Cosmodrome demonstrates the continued development and application of Soviet space technology. This satellite, along with others in the Cosmos series, played a vital role in the space race and global power dynamics of the time. The detailed launch parameters recorded for Cosmos 640 provide valuable historical data on Soviet space operations, contributing to our understanding of Cold War-era space technology and military surveillance programs.

## Notable For
- Part of the Zenit 2M class of Soviet spy satellites
- Launched with the specific COSPAR designation 1974-021A
- Classified with serial number 07245
- Wikipedia articles available in three Slavic languages
- One of only 3 Cosmos satellites with notable site links

## Body
### Technical Classification
- Satellite class: Zenit 2M (Soviet spy satellite)
- Instance of: Zenit 2M
- Also known as: Kosmos 640
- Classified serial number: 07245

### Launch Information
- Launch date: April 11, 1974
- Launch time: 12:22:59
- Launch site: Plesetsk Cosmodrome Site 43/4
- Launch vehicle: Voskhod
- Event type: Rocket launch

### Identifiers
- COSPAR ID: 1974-021A
- SCN: 07245
- Site link count: 3
- Wikipedia languages: mk, sh, sr

### Related Entities
- Related to Zenit 2M class (Soviet spy satellite)
- Related to Voskhod (Russian launch vehicle)
- Related to Voskhod series (Soviet crewed spacecraft)

## References

1. Jonathan's Space Report