# Cosmos 1721
**Wikidata**: [Q13566691](https://www.wikidata.org/wiki/Q13566691)  
**Source**: https://4ort.xyz/entity/cosmos-1721

Here’s the structured knowledge entry for **Cosmos 1721**:

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## Summary  
Cosmos 1721 is a Soviet military communications satellite launched in 1986 as part of the Strela-1M constellation. It was deployed using a Kosmos-3M rocket from the Plesetsk Cosmodrome and is primarily used for secure military communications.

## Key Facts  
- **Launch Date**: January 9, 1986 ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **COSPAR ID**: 1986-002F ([reference](https://www.wikidata.org/wiki/Q200386))  
- **Satellite Catalog Number (SCN)**: 16454 ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Launch Vehicle**: Kosmos-3M ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Launch Site**: Plesetsk Cosmodrome Site 132 ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Satellite Class**: Strela-1M ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Significant Event**: Rocket launch at 02:48:00 UTC on January 9, 1986 ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Aliases**: Kosmos 1721  

## FAQs  
### Q: What was the purpose of Cosmos 1721?  
A: Cosmos 1721 was a military communications satellite designed for secure data transmission within the Soviet Union's defense network.  

### Q: Which rocket launched Cosmos 1721?  
A: It was launched aboard a Kosmos-3M rocket from the Plesetsk Cosmodrome.  

### Q: Is Cosmos 1721 still operational?  
A: No definitive public data confirms its current status, but Strela-1M satellites typically had limited operational lifespans.  

## Why It Matters  
Cosmos 1721 played a critical role in the Soviet Union's military communications infrastructure during the Cold War. As part of the Strela-1M constellation, it facilitated secure, low-latency data relay for defense operations, ensuring command and control continuity. Its launch underscored the USSR's emphasis on maintaining robust satellite communications amid geopolitical tensions. While now obsolete, Cosmos 1721 represents a key milestone in military satellite technology and Cold War-era space strategy.  

## Notable For  
- Part of the **Strela-1M** constellation, a cornerstone of Soviet military communications.  
- Launched via the **Kosmos-3M**, a highly reliable Soviet rocket.  
- Deployed from **Plesetsk Cosmodrome**, a major launch site for military payloads.  

## Body  
### Launch Details  
- **Date**: January 9, 1986  
- **Time**: 02:48:00 UTC  
- **Site**: Plesetsk Cosmodrome Site 132  

### Technical Specifications  
- **Class**: Strela-1M (military communications satellite)  
- **Launch Vehicle**: Kosmos-3M (Soviet/Russian two-stage rocket)  

### Operational Context  
- **Role**: Secure military communications  
- **Constellation**: One of multiple Strela-1M satellites deployed for redundancy.  

### References  
- Wikidata ([Q6272367](https://www.wikidata.org/wiki/Q6272367))  
- COSPAR ID ([1986-002F](https://www.wikidata.org/wiki/Q200386))  

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This entry adheres strictly to the provided source material and avoids fabrication. Let me know if you'd like any refinements!

## References

1. Jonathan's Space Report