# Kosmos 440

> satellite

**Wikidata**: [Q53558](https://www.wikidata.org/wiki/Q53558)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Kosmos_440)  
**Source**: https://4ort.xyz/entity/kosmos-440

## Summary
Kosmos 440 was a Soviet radar calibration satellite launched in 1971 as part of the DS-P1-I series. It was designed for military and scientific purposes, specifically to calibrate ground-based radar systems. The satellite was launched aboard a Kosmos-2I rocket from the Plesetsk Cosmodrome.

## Key Facts
- **Launch Date**: September 24, 1971 ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **COSPAR ID**: 1971-079A ([reference](https://www.wikidata.org/wiki/Q8449))  
- **Model**: DS-P1-I, a Soviet radar calibration satellite ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Launch Vehicle**: Kosmos-2I rocket ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Launch Site**: Plesetsk Cosmodrome Site 133 ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Manufacturer**: Pivdenne Design Office ([reference](https://www.wikidata.org/wiki/Q328))  
- **Alternative Name**: DS-P1-I No.10 ([reference](https://www.wikidata.org/wiki/Q6272367))  

## FAQs
### Q: What was the purpose of Kosmos 440?  
A: Kosmos 440 was a radar calibration satellite used to calibrate Soviet ground-based radar systems for military and scientific applications.  

### Q: Where was Kosmos 440 launched from?  
A: It was launched from Plesetsk Cosmodrome Site 133 in the Soviet Union on September 24, 1971.  

### Q: What rocket was used to launch Kosmos 440?  
A: It was launched aboard a Kosmos-2I carrier rocket, a Soviet launch vehicle.  

## Why It Matters  
Kosmos 440 played a critical role in the Soviet Union's space and defense programs by ensuring the accuracy of radar systems used for tracking objects in orbit and missile detection. As part of the DS-P1-I series, it contributed to advancements in satellite calibration technology, which was vital for both military surveillance and scientific research. Its successful deployment demonstrated Soviet capabilities in space technology during the Cold War era.  

## Notable For
- **Radar Calibration**: One of several satellites designed specifically for calibrating Soviet radar systems.  
- **Cold War Era**: Part of a broader Soviet effort to enhance space-based and ground-based defense technologies.  
- **Pivdenne Design Office**: Manufactured by a key Soviet aerospace design bureau known for its contributions to satellite and missile technology.  

## Body  
### Launch Details  
- **Date**: September 24, 1971, at 10:30 UTC ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Site**: Plesetsk Cosmodrome Site 133 ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Rocket**: Kosmos-2I ([reference](https://www.wikidata.org/wiki/Q6272367))  

### Satellite Specifications  
- **Model**: DS-P1-I ([reference](https://www.wikidata.org/wiki/Q6272367))  
- **Manufacturer**: Pivdenne Design Office ([reference](https://www.wikidata.org/wiki/Q328))  
- **Function**: Radar calibration for military and scientific use ([reference](https://www.wikidata.org/wiki/Q6272367))  

### Legacy  
- **Series**: Part of the DS-P1-I program, which included multiple satellites for similar purposes.  
- **Historical Context**: Launched during the Cold War, reflecting Soviet advancements in space technology.

## References

1. Jonathan's Space Report
2. Freebase Data Dumps. 2013