# Soyuz T-1

> uncrewed spacecraft

**Wikidata**: [Q1516996](https://www.wikidata.org/wiki/Q1516996)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Soyuz_T-1)  
**Source**: https://4ort.xyz/entity/soyuz-t-1

## Summary
Soyuz T-1 was an uncrewed spacecraft launched on December 16, 1979, as part of the Soviet Soyuz programme. It was the first flight of the Soyuz-T model and spent 100 days in low Earth orbit before landing in Kazakhstan on March 26, 1980.

## Key Facts
- **Launch date**: December 16, 1979
- **Landing date**: March 26, 1980
- **Duration**: 100 days (144,000 minutes)
- **Mass at takeoff**: 6,450 kilograms
- **Launch vehicle**: Soyuz-U
- **Launch site**: Baikonur Cosmodrome, Site 31
- **Landing location**: Kazakhstan
- **Orbit**: Low Earth orbit
- **COSPAR ID**: 1979-103A
- **Part of**: Soyuz programme
- **Operator**: Soviet space program

## FAQs
### Q: What was Soyuz T-1?
A: Soyuz T-1 was an uncrewed spacecraft launched on December 16, 1979, as part of the Soviet Soyuz programme. It was the first flight of the Soyuz-T model and spent 100 days in orbit before landing in Kazakhstan on March 26, 1980.

### Q: How long did Soyuz T-1 stay in space?
A: Soyuz T-1 remained in low Earth orbit for 100 days, totaling 144,000 minutes in space.

### Q: What was the launch vehicle for Soyuz T-1?
A: Soyuz T-1 was launched using the Soyuz-U rocket from Baikonur Cosmodrome, Site 31.

### Q: Where did Soyuz T-1 land?
A: Soyuz T-1 landed in Kazakhstan on March 26, 1980.

### Q: What was the mass of Soyuz T-1 at takeoff?
A: Soyuz T-1 had a takeoff mass of 6,450 kilograms.

## Why It Matters
Soyuz T-1 was a significant milestone in the Soviet space program, marking the first flight of the Soyuz-T model. As an uncrewed spacecraft, it served as a test vehicle to validate the design and performance of the Soyuz-T before crewed missions. Its successful 100-day mission in low Earth orbit demonstrated the reliability of the Soyuz-T spacecraft and the Soyuz-U launch vehicle. The mission also contributed to the broader Soyuz programme, which became a cornerstone of the Soviet space programme and later the Russian space programme.

## Notable For
- First flight of the Soyuz-T model
- Successful 100-day mission in low Earth orbit
- Validation of Soyuz-T design and Soyuz-U launch vehicle performance
- Contribution to the broader Soyuz programme
- Uncrewed test mission for future crewed flights

## Body
### Mission Overview
Soyuz T-1 was launched on December 16, 1979, from Baikonur Cosmodrome, Site 31, using the Soyuz-U rocket. The spacecraft entered low Earth orbit and remained in space for 100 days, totaling 144,000 minutes. It landed in Kazakhstan on March 26, 1980.

### Technical Specifications
- **Mass at takeoff**: 6,450 kilograms
- **Launch vehicle**: Soyuz-U
- **Orbit**: Low Earth orbit
- **COSPAR ID**: 1979-103A

### Significance
Soyuz T-1 was part of the Soyuz programme, which was a key component of the Soviet space programme. The mission served as a test for the Soyuz-T model and the Soyuz-U launch vehicle, paving the way for future crewed missions. The successful duration and performance of Soyuz T-1 demonstrated the reliability of the spacecraft and launch system.

### Historical Context
Soyuz T-1 was launched during the Cold War era and contributed to the Soviet space programme's efforts to advance space exploration. The mission was part of a series of uncrewed test flights that prepared the Soyuz-T for crewed missions. The spacecraft's successful landing marked a significant achievement in the Soviet space programme.

## References

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