# Cosmos 1811
**Wikidata**: [Q13566705](https://www.wikidata.org/wiki/Q13566705)  
**Source**: https://4ort.xyz/entity/cosmos-1811

## Summary
Cosmos 1811 was a Soviet reconnaissance satellite, specifically a Yantar-4K2, launched on January 9, 1987. It was part of the Soviet Union's spy satellite program, orbited Earth using a Soyuz-U rocket launched from Baikonur Cosmodrome.

## Key Facts
- **SCN**: 17292
- **Alias**: Kosmos 1811
- **COSPAR ID**: 1987-002A
- **Instance of**: Yantar-4K2 (Soviet/Russian spy satellite class)
- **Launch Date**: January 9, 1987
- **Launch Site**: Baikonur Cosmodrome Site 31
- **Launch Vehicle**: Soyuz-U (Soviet rocket design variant - Universal)
- **Wikipedia Languages**: Macedonian (mk), Serbo-Croatian (sh), Serbian (sr)
- **Sitelink Count**: 3

## FAQs
### Q: What was Cosmos 1811?
A: Cosmos 1811 was a Soviet reconnaissance satellite belonging to the Yantar-4K2 class. It was launched on January 9, 1987, as part of the Soviet Union's space program.

### Q: Who launched Cosmos 1811 and where?
A: Cosmos 1811 was launched by the Soviet Union from Baikonur Cosmodrome Site 31 using a Soyuz-U rocket on January 9, 1987.

### Q: What type of satellite was Cosmos 1811?
A: It was an instance of the Yantar-4K2 class, which were Soviet/Russian spy satellites designed for reconnaissance purposes.

### Q: When did the launch of Cosmos 1811 occur?
A: The launch occurred on January 9, 1987, at 12:38:04 UTC.

## Why It Matters
Cosmos 1811 represents a significant node in the Soviet Union's Cold War reconnaissance satellite capabilities. As a Yantar-4K2 satellite, it was part of an advanced class designed to gather high-resolution imagery for military and intelligence purposes. Its launch, utilizing the reliable Soyuz-U rocket from the historic Baikonur Cosmodrome, underscores the USSR's sustained effort in Earth observation technology during the late 1980s. While specific mission details beyond its launch and class are not provided in the source material, its existence highlights the ongoing strategic importance of space-based surveillance and the technical infrastructure supporting it.

## Notable For
- Being a member of the Yantar-4K2 satellite class, dedicated to reconnaissance.
- Launch occurring on January 9, 1987, at the precise time of 12:38:04 UTC.
- Utilizing the Soyuz-U launch vehicle variant operated by the Soviet Union.
- Departing specifically from Baikonur Cosmodrome Site 31.
- Having its primary identifier as SCN 17292 and COSPAR ID 1987-002A.

## Body
### Launch
- **Date**: January 9, 1987
- **Time**: 12:38:04 UTC
- **Location**: Baikonur Cosmodrome Site 31
- **Vehicle**: Soyuz-U (Universal variant of the Soyuz rocket)
- **Country of Operator**: Soviet Union
- **Event Type**: Rocket Launch (classified as a satellite launch)
- **Significant Event Qualifiers**: Point of origin (Baikonur Cosmodrome Site 31), Specific time (12:38:04), Point in time (1987-01-09)

### Satellite Details
- **Name**: Cosmos 1811 (alias: Kosmos 1811)
- **Class**: Yantar-4K2 (Soviet/Russian spy satellite)
- **Instance Of**: Yantar-4K2
- **SCN (Satellite Catalog Number)**: 17292
- **COSPAR ID**: 1987-002A
- **Wikipedia Coverage**: Exists in 3 languages: Macedonian (mk), Serbo-Croatian (sh), Serbian (sr)
- **Sitelink Count**: 3
- **Wolfram Language Entity Code**: Entity["Satellite", "17292"]
- **Related Class**: Yantar-4K2 (spy satellite)
- **Related Launch Vehicle**: Soyuz-U (Universal variant)

## References

1. Jonathan's Space Report