# Cosmos 2141
**Wikidata**: [Q12907588](https://www.wikidata.org/wiki/Q12907588)  
**Source**: https://4ort.xyz/entity/cosmos-2141

## Summary
Cosmos 2141 is a GLONASS navigation satellite launched on April 4, 1991, as part of the Soviet Union's GLONASS satellite navigation system. It was launched aboard a Proton-K rocket from Baikonur Cosmodrome Site 200 and used the Blok DM-2 upper stage.

## Key Facts
- **Satellite class**: GLONASS navigation satellite
- **Launch date**: April 4, 1991
- **Launch vehicle**: Proton-K
- **Launch site**: Baikonur Cosmodrome Site 200
- **Upper stage**: Blok DM-2
- **COSPAR ID**: 1991-025C
- **SCN (Satellite Catalog Number)**: 21218
- **Aliases**: Kosmos 2141
- **Wikipedia availability**: Available in Macedonian, Serbo-Croatian, and Serbian

## FAQs
### Q: What was the purpose of Cosmos 2141?
A: Cosmos 2141 was a GLONASS satellite designed to provide navigation and positioning services as part of the Soviet Union's GLONASS system.

### Q: Which rocket launched Cosmos 2141?
A: Cosmos 2141 was launched by a Proton-K rocket from Baikonur Cosmodrome Site 200 on April 4, 1991.

### Q: What is the COSPAR ID of Cosmos 2141?
A: The COSPAR ID of Cosmos 2141 is 1991-025C.

### Q: What upper stage was used for Cosmos 2141's launch?
A: The Blok DM-2 upper stage was used to deploy Cosmos 2141 into its intended orbit.

### Q: Where can I find more information about Cosmos 2141?
A: Detailed information is available in the Macedonian, Serbo-Croatian, and Serbian Wikipedia entries.

## Why It Matters
Cosmos 2141 was a critical component of the GLONASS satellite navigation system, which was developed by the Soviet Union as a rival to the U.S. GPS system. The GLONASS system aimed to provide global navigation services, including precise positioning and timing for military and civilian applications. Cosmos 2141's successful launch contributed to the expansion of the GLONASS constellation, enhancing the system's coverage and reliability. The satellite's deployment was part of a broader effort to establish a robust satellite-based navigation infrastructure, which remains significant in modern geolocation and timing technologies.

## Notable For
- **First GLONASS satellite of 1991**: One of the earliest satellites launched to support the GLONASS system.
- **Proton-K launch**: Demonstrated the reliability of the Proton-K rocket in deploying navigation satellites.
- **Blok DM-2 upper stage**: Highlighted the effectiveness of the Blok DM-2 in achieving precise orbital insertion.
- **Baikonur Cosmodrome Site 200**: Marked the launch site's role in early GLONASS missions.
- **COSPAR ID 1991-025C**: A unique identifier for tracking and cataloging the satellite.

## Body
### Launch Details
Cosmos 2141 was launched on April 4, 1991, at 10:47:12 UTC from Baikonur Cosmodrome Site 200. The Proton-K rocket carried the satellite, with the Blok DM-2 upper stage providing the final push to deploy it into its operational orbit.

### Satellite Classification
The satellite is classified under the GLONASS family, which was designed to offer global navigation services. It was assigned the Satellite Catalog Number (SCN) 21218 and the COSPAR ID 1991-025C.

### Technical Specifications
- **Primary mission**: Navigation and positioning as part of the GLONASS system.
- **Launch vehicle**: Proton-K, a Russian heavy-lift carrier rocket.
- **Upper stage**: Blok DM-2, used for precise orbital insertion.

### Historical Context
The launch of Cosmos 2141 was part of the Soviet Union's efforts to develop a competitive satellite navigation system. The GLONASS system aimed to provide accurate positioning and timing services, both for military and civilian use.

### Availability
Detailed information about Cosmos 2141 is available in Wikipedia entries in Macedonian, Serbo-Croatian, and Serbian, reflecting its relevance in those regions. The satellite's technical specifications and launch details are documented in academic and spaceflight databases.

## References

1. Jonathan's Space Report