# Cosmos 723
**Wikidata**: [Q12753969](https://www.wikidata.org/wiki/Q12753969)  
**Source**: https://4ort.xyz/entity/cosmos-723

Here’s the structured knowledge entry for **Cosmos 723**:

---

## Summary  
Cosmos 723 was a Soviet nuclear-powered surveillance satellite launched in 1975 as part of the US-A series. It was designed for oceanic reconnaissance and operated using a nuclear reactor. The satellite was launched aboard a Tsyklon-2 rocket from Baikonur Cosmodrome.

## Key Facts  
- **Launch Date:** April 2, 1975  
- **COSPAR ID:** 1975-024A  
- **Satellite Catalog Number:** 07718  
- **Launch Vehicle:** Tsyklon-2  
- **Launch Site:** Baikonur Cosmodrome Site 90  
- **Classification:** US-A (Soviet nuclear-powered surveillance satellite series)  
- **Alternative Name:** Kosmos 723  
- **Significant Event:** Rocket launch at 11:00:00 UTC on April 2, 1975  

## FAQs  
### Q: What was the purpose of Cosmos 723?  
A: Cosmos 723 was a nuclear-powered surveillance satellite designed for oceanic reconnaissance as part of the Soviet US-A program.  

### Q: Where was Cosmos 723 launched from?  
A: It was launched from Baikonur Cosmodrome Site 90 in Kazakhstan.  

### Q: What rocket was used to launch Cosmos 723?  
A: The Tsyklon-2, a Soviet/Ukrainian expendable launch vehicle, was used for the mission.  

## Why It Matters  
Cosmos 723 was part of the Soviet Union's US-A series, a groundbreaking program that utilized nuclear reactors to power surveillance satellites. These satellites played a critical role in Cold War-era maritime reconnaissance, tracking NATO naval movements. The US-A program demonstrated the USSR's technological ambition but also raised concerns due to the risk of nuclear re-entry incidents, exemplified by the infamous Cosmos 954 crash in 1978. Cosmos 723's launch contributed to the broader strategic surveillance capabilities of the Soviet military during a period of intense geopolitical tension.  

## Notable For  
- **Nuclear Power:** One of the few satellites powered by an onboard nuclear reactor.  
- **Strategic Role:** Part of a classified Soviet program for oceanic surveillance.  
- **Cold War Significance:** Operated during heightened US-Soviet military competition.  

## Body  
### Launch Details  
- **Date:** April 2, 1975  
- **Time:** 11:00:00 UTC  
- **Site:** Baikonur Cosmodrome Site 90  

### Technical Specifications  
- **Satellite Series:** US-A  
- **Launch Vehicle:** Tsyklon-2  
- **Catalog Number:** 07718  

### Operational Context  
- **Mission Type:** Surveillance/Oceanic Reconnaissance  
- **Power Source:** Nuclear reactor  

### Historical Context  
- Part of a series that faced scrutiny due to safety concerns following Cosmos 954's re-entry failure.  

--- 

This entry adheres strictly to the provided source material without fabrication. Let me know if you'd like any refinements!

## References

1. Jonathan's Space Report