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Soyuz 7K-T No. 42

Re-entered 11 Oct 1977

Soyuz 7K-T No. 42 (NORAD 10401, COSPAR 1977-099A) was a SU satellite that re-entered Earth's atmosphere on 11 Oct 1977, launched on 9 Oct 1977 on the Soyuz 7K-T No. 42 mission. It was operated by NPOE as part of the 7K-T programme. The spacecraft was built by NPOE on the 7K-T bus, with a mass of 2,850 kg. Like most satellites in low orbits, it was gradually slowed by atmospheric drag until re-entry. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.

1977
launched
1977
re-entered
0
years on orbit
2,850
kg mass

Lifecycle

Launched9 Oct 1977 · on the Soyuz 7K-T No. 42 mission
Operational11 Oct 1977 · entered service
Retired11 Oct 1977 · end of operational service
Re-entered11 Oct 1977 · atmospheric re-entry — object destroyed

Specifications

NORAD ID10401
COSPAR1977-099A
TypeSatellite
OperatorNPOE
Country / StateSU
ManufacturerNPOE
Bus7K-T
Mass2,850 kg
Programme7K-T
CategorySS
OrbitLEO (LLEO/I)
Altitude329 × 352 km
Inclination51.6°

Frequently asked questions

What happened to Soyuz 7K-T No. 42?

Soyuz 7K-T No. 42 re-entered Earth's atmosphere on 11 Oct 1977, ending a mission that began with its launch in 1977. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Soyuz 7K-T No. 42 re-enter the atmosphere?

Soyuz 7K-T No. 42 re-entered on 11 Oct 1977, according to Orbital Radar's historical catalogue records.

Who operated and built Soyuz 7K-T No. 42?

Soyuz 7K-T No. 42 was operated by NPOE and built by NPOE (SU).

Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.