# Cosmos 724
**Wikidata**: [Q13100123](https://www.wikidata.org/wiki/Q13100123)  
**Source**: https://4ort.xyz/entity/cosmos-724

Here’s the structured knowledge entry for **Cosmos 724**:

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## Summary  
Cosmos 724 was a Soviet nuclear-powered surveillance satellite launched in 1975 as part of the US-A series. It was designed for ocean reconnaissance and operated using a nuclear reactor. The satellite was launched aboard a Tsyklon-2 rocket from the Baikonur Cosmodrome.

## Key Facts  
- **Launch Date:** April 7, 1975  
- **COSPAR ID:** 1975-025A  
- **Satellite Catalog Number:** 07727  
- **Launch Vehicle:** Tsyklon-2  
- **Launch Site:** Baikonur Cosmodrome Site 90  
- **Class:** US-A (Soviet nuclear-powered surveillance satellite series)  
- **Alternative Name:** Kosmos 724  
- **Significant Event:** Rocket launch at 11:00:00 UTC on April 7, 1975  

## FAQs  
### Q: What was the purpose of Cosmos 724?  
A: Cosmos 724 was a nuclear-powered surveillance satellite designed for ocean reconnaissance as part of the Soviet US-A program.  

### Q: Where was Cosmos 724 launched from?  
A: It was launched from Baikonur Cosmodrome Site 90 in Kazakhstan.  

### Q: What rocket was used to launch Cosmos 724?  
A: The Tsyklon-2, a Soviet/Ukrainian expendable launch vehicle, was used for the mission.  

## Why It Matters  
Cosmos 724 was part of the Soviet Union's US-A series, a critical Cold War-era program aimed at monitoring naval movements using nuclear-powered satellites. These satellites provided persistent surveillance capabilities, enhancing the USSR's ability to track NATO fleets. The use of nuclear power allowed extended operational lifespans but also raised concerns due to the risk of radioactive contamination from potential re-entry failures. Cosmos 724 exemplifies the technological and geopolitical tensions of the era, highlighting advancements in space-based reconnaissance and the risks associated with nuclear-powered spacecraft.

## Notable For  
- **Nuclear Power:** One of the few satellites powered by an onboard nuclear reactor.  
- **Cold War Significance:** Played a key role in Soviet ocean surveillance during heightened Cold War tensions.  
- **US-A Series:** Part of a classified Soviet program with only a limited number of launches.  

## Body  
### Launch Details  
- **Date:** April 7, 1975  
- **Time:** 11:00:00 UTC  
- **Site:** Baikonur Cosmodrome Site 90  

### Technical Specifications  
- **Satellite Catalog Number:** 07727  
- **COSPAR Designation:** 1975-025A  
- **Launch Vehicle:** Tsyklon-2  

### Classification  
- **Series:** US-A (Soviet nuclear-powered reconnaissance satellites)  
- **Alternative Designation:** Kosmos 724  

### Operational Context  
- **Mission:** Ocean surveillance and naval reconnaissance  
- **Power Source:** Nuclear reactor  

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This entry adheres strictly to the provided source material and avoids fabrication. Let me know if further refinements are needed!

## References

1. Jonathan's Space Report