# Cosmos 2115
**Wikidata**: [Q12907577](https://www.wikidata.org/wiki/Q12907577)  
**Source**: https://4ort.xyz/entity/cosmos-2115

## Summary
Cosmos 2115 is a Strela-3 military communications satellite launched by the Soviet Union on December 22, 1990, to support secure communications as part of a satellite constellation. It was deployed using a Tsyklon-3 rocket from Plesetsk Cosmodrome Site 32. The satellite is identified by COSPAR ID 1990-114B and satellite catalog number 21029.

## Key Facts
- **Launch Date**: December 22, 1990, at 07:28:53 UTC.
- **COSPAR ID**: 1990-114B.
- **Satellite Catalog Number (SCN)**: 21029.
- **Class**: Strela-3 military communications satellite.
- **Launch Vehicle**: Tsyklon-3 expendable launch vehicle.
- **Launch Site**: Plesetsk Cosmodrome Site 32.
- **Sitelink Count**: 4 (Wikipedia languages: Croatian, Macedonian, Serbo-Croatian, Serbian).

## FAQs
### Q: When was Cosmos 2115 launched?
A: Cosmos 2115 was launched on December 22, 1990, at 07:28:53 UTC from Plesetsk Cosmodrome Site 32.

### Q: What type of satellite is Cosmos 2115?
A: It is a Strela-3 military communications satellite, part of a Soviet/Ukrainian network for secure communications.

### Q: What rocket was used to launch Cosmos 2115?
A: The satellite was launched aboard a Tsyklon-3 rocket, a Soviet/Ukrainian expendable launch vehicle.

## Why It Matters
Cosmos 2115 played a role in maintaining secure military communications for the Soviet Union, contributing to the broader Strela-3 satellite constellation. As part of this network, it supported strategic operations and demonstrated the reliability of the Tsyklon-3 launch vehicle, which was widely used for deploying military and scientific payloads. The satellite’s launch in 1990 occurred during a period of significant space activity for the Soviet Union, highlighting the importance of space-based communications in military infrastructure. Its operation underscored the integration of space assets into defense strategies, a practice that continues to influence modern military communications systems.

## Notable For
- **Strela-3 Constellation Member**: Part of a series of satellites designed for military communications, emphasizing redundancy and coverage.
- **Tsyklon-3 Launch Vehicle**: Utilized a rocket known for its role in Soviet and later Ukrainian space programs, particularly for military and scientific missions.
- **Plesetsk Cosmodrome Launch**: Conducted from a primary Soviet/Russian spaceport, reflecting the strategic importance of high-latitude launch sites.

## Body
### Launch Details
- **Date and Time**: Launched on December 22, 1990, at 07:28:53 UTC.
- **Launch Vehicle**: Tsyklon-3 (Cyclone-3), a liquid-fueled rocket developed by the Soviet Union and later operated by Ukraine.
- **Launch Site**: Plesetsk Cosmodrome Site 32, a facility in northwestern Russia used for military and civilian space missions.

### Satellite Specifications
- **Identification**: 
  - **COSPAR ID**: 1990-114B.
  - **Satellite Catalog Number (SCN)**: 21029.
- **Class**: Strela-3, a type of military communications satellite developed for the Soviet Armed Forces.
- **Purpose**: To provide secure communication services as part of a low Earth orbit (LEO) constellation.

### Mission Context
- **Constellation Role**: Strela-3 satellites operated in a network to ensure continuous communication coverage for military units.
- **Launch Context**: The Tsyklon-3 rocket was a workhorse for Soviet space missions, launching numerous satellites like Cosmos 2115 before its retirement in 2009.
- **Historical Significance**: The satellite’s deployment in 1990 occurred shortly before the dissolution of the Soviet Union, marking a transitional period in the management of Soviet space assets.

## References

1. Jonathan's Space Report