# Soyuz TM-27

> 1998 Russian crewed spaceflight to Mir

**Wikidata**: [Q643774](https://www.wikidata.org/wiki/Q643774)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Soyuz_TM-27)  
**Source**: https://4ort.xyz/entity/soyuz-tm-27

## Summary
Soyuz TM-27 was a 1998 Russian crewed spaceflight to the Mir space station, part of the Soyuz-TM program, launched from Baikonur Cosmodrome on January 29, 1998, and landing in Kazakhstan on August 25, 1998.

## Key Facts
- Soyuz TM-27 was a Russian crewed spaceflight to the Mir space station in 1998
- It was launched on January 29, 1998, and landed on August 25, 1998
- The spacecraft had a takeoff mass of 7,150 kilograms
- It orbited Earth with a period of 92 minutes and completed 3,284 orbits
- It was operated by Roscosmos State Corporation
- It followed Soyuz TM-26 and was followed by Soyuz TM-28
- It was launched using a Soyuz-U rocket from Baikonur Cosmodrome
- The crew consisted of four astronauts: Talgat Musabayev, Nikolai Budarin, Léopold Eyharts, and Yuri Baturin

### FAQs
### Q: What was the purpose of Soyuz TM-27?
A: Soyuz TM-27 was a Russian crewed spaceflight to the Mir space station, carrying four astronauts who conducted research and maintenance tasks during their mission.

### Q: Who were the crew members of Soyuz TM-27?
A: The crew included Talgat Musabayev (spacecraft commander), Nikolai Budarin (flight engineer), Léopold Eyharts (research cosmonaut), and Yuri Baturin (research cosmonaut).

### Q: When did Soyuz TM-27 launch and land?
A: It launched on January 29, 1998, from Baikonur Cosmodrome and landed on August 25, 1998, in Kazakhstan.

### Q: What was the orbital period of Soyuz TM-27?
A: The spacecraft had an orbital period of 92 minutes.

### Q: What was the significance of this mission?
A: The mission was part of the international collaboration during the Mir program, allowing research and maintenance activities on the space station.

## Why It Matters
Soyuz TM-27 represented an important phase in the operation of the Mir space station, continuing the international cooperation that had been established during the Soviet era. The mission demonstrated the reliability of the Soyuz-TM spacecraft and the capabilities of the Russian space program during the late 1990s. It contributed to scientific research and maintenance activities on the space station, helping to extend its operational life and advance our understanding of long-duration spaceflight.

## Notable For
- It was part of the Soyuz-TM program, the fourth generation of Soyuz spacecraft
- It carried a crew of four to the Mir space station
- It was launched using a Soyuz-U rocket from Gagarin's Start at Baikonur
- It completed 3,284 orbits during its mission
- It was operated by Roscosmos State Corporation

## Body
### Mission Overview
Soyuz TM-27 was a Russian crewed spaceflight to the Mir space station that took place in 1998. The mission was part of the ongoing international collaboration during the Mir program, which had been operational since 1986. The spacecraft was launched from the Baikonur Cosmodrome on January 29, 1998, and successfully docked with the Mir space station on February 1, 1998.

### Technical Specifications
The Soyuz TM-27 spacecraft was a fourth-generation Soyuz vehicle, specifically designed for long-duration missions to the Mir space station. It had a takeoff mass of 7,150 kilograms and was equipped with the Soyuz-U rocket as its launch vehicle. The spacecraft featured improved life support systems and enhanced communication capabilities compared to earlier Soyuz models.

### Crew Members
The crew consisted of four astronauts:
- Talgat Musabayev as the spacecraft commander
- Nikolai Budarin as the flight engineer
- Léopold Eyharts as a research cosmonaut
- Yuri Baturin as a research cosmonaut

### Orbit and Operations
During its mission, Soyuz TM-27 orbited Earth with an orbital period of 92 minutes. The spacecraft maintained an orbital inclination of 51.62 degrees and had an apogee (apoapsis) of 390 kilometers and a perigee (periapsis) of 382 kilometers. The mission lasted approximately 199 days, during which the crew conducted scientific research, maintained the space station, and performed various technical tasks.

### Launch and Landing Details
The launch occurred from Gagarin's Start at the Baikonur Cosmodrome on January 29, 1998. The spacecraft landed in Kazakhstan on August 25, 1998. The landing site was approximately 60 kilometers southeast of Arkalyk, Kazakhstan.

### Significance
The mission was significant as it represented the continued operation of the Mir space station during a period of international cooperation between Russia and other spacefaring nations. The Soyuz TM-27 mission demonstrated the reliability and capabilities of the Russian space program and contributed to the advancement of space exploration technology.

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## References

1. Jonathan's Space Report
2. Freebase Data Dumps. 2013
3. [Source](http://www.spacefacts.de/mission/english/soyuz-tm-27.htm)