# Cosmos 815
**Wikidata**: [Q12907809](https://www.wikidata.org/wiki/Q12907809)  
**Source**: https://4ort.xyz/entity/cosmos-815

## Summary
Cosmos 815 was a Soviet satellite launched on April 28, 1976, from Plesetsk Cosmodrome Site 43 aboard a Voskhod launch vehicle. This reconnaissance satellite belonged to the Zenit-4MK class and was cataloged as number 08811.

## Key Facts
- Cosmos 815 was launched on April 28, 1976, at 09:30:00 from Plesetsk Cosmodrome Site 43
- It utilized a Voskhod launch vehicle for its mission to orbit
- The satellite belongs to the Zenit-4MK class of reconnaissance satellites
- Its Spacecraft Catalog Number (SCN) is 08811
- Its COSPAR ID is 1976-036A
- The satellite is also known by the alias "Kosmos 815"
- Wikipedia entries exist for Cosmos 815 in Macedonian, Serbo-Croatian, and Serbian languages

## FAQs
### Q: What was the purpose of Cosmos 815?
A: Based on available information, Cosmos 815 was part of the Zenit-4MK class, which were Soviet reconnaissance satellites designed for Earth observation and intelligence gathering missions during the Cold War period.

### Q: Where and when was Cosmos 815 launched?
A: Cosmos 815 was launched on April 28, 1976, at 09:30:00 from Plesetsk Cosmodrome Site 43 using a Voskhod launch vehicle.

### Q: What technical specifications distinguish Cosmos 815?
A: Cosmos 815 belonged to the Zenit-4MK class of satellites, a specialized reconnaissance satellite series. It had a Spacecraft Catalog Number of 08811 and COSPAR ID 1976-036A.

### Q: How does Cosmos 815 relate to other Soviet space programs?
A: Cosmos 815 was launched using the Voskhod rocket, which was also used for crewed space missions as part of the Soviet space program's Voskhod spacecraft series.

## Why It Matters
Cosmos 815 represents an important piece of Cold War space technology as part of the Soviet Zenit-4MK reconnaissance satellite program. These satellites were crucial for Soviet military intelligence capabilities during a period of intense geopolitical competition. The Zenit series, which included Cosmos 815, demonstrated the Soviet Union's advances in reconnaissance technology and its ability to maintain orbital assets for extended periods. The fact that this satellite was launched from Plesetsk Cosmodrome, the Soviet Union's northernmost launch facility, highlights the strategic importance of this location in their space infrastructure.

## Notable For
- Being part of the Zenit-4MK class, a specialized series of Soviet reconnaissance satellites
- Launching on April 28, 1976, during an active period of Soviet space operations
- Utilizing the Voskhod launch vehicle, which was also used for crewed missions
- Having documentation in multiple Slavic languages (Macedonian, Serbo-Croatian, and Serbian)
- Being catalogued with both SCN 08811 and COSPAR ID 1976-036A for international identification

## Body
### Mission Overview
Cosmos 815 was a Soviet satellite launched on April 28, 1976, at 09:30:00 from Plesetsk Cosmodrome Site 43. The mission utilized a Voskhod launch vehicle to place the satellite into orbit. The satellite belonged to the Zenit-4MK class, which were reconnaissance satellites designed for Earth observation and intelligence gathering purposes.

### Technical Specifications
- Class: Zenit-4MK (reconnaissance satellite)
- Spacecraft Catalog Number (SCN): 08811
- COSPAR ID: 1976-036A
- Launch Date: April 28, 1976
- Launch Time: 09:30:00
- Launch Site: Plesetsk Cosmodrome Site 43
- Launch Vehicle: Voskhod
- Alternative Name: Kosmos 815

### Documentation and References
- The satellite has 3 sitelinks across different language versions of Wikipedia
- Available in Macedonian (mk), Serbo-Croatian (sh), and Serbian (sr) language editions
- Referenced in Wolfram Language as Entity["Satellite", "08811"]

### Related Programs
- Part of the broader Cosmos/Kosmos series of satellites
- Associated with the Zenit family of reconnaissance satellites
- Used the same Voskhod launch vehicle that was employed for crewed Voskhod spacecraft missions
- Launched from Plesetsk Cosmodrome, a major Soviet launch facility

## References

1. Jonathan's Space Report