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Nauka 27KS No. 1L

Re-entered 25 Jan 1978

Nauka 27KS No. 1L (NORAD 10558, COSPAR 1977-124D) was a SU satellite that re-entered Earth's atmosphere on 25 Jan 1978, launched on 27 Dec 1977 on the Zenit-2M mission. It was operated by TSSKB as part of the Nauka 27KS programme. The spacecraft was built by TSSKB on the Nauka bus, with a mass of 630 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
1978
re-entered
1
year on orbit
630
kg mass

Lifecycle

Launched27 Dec 1977 · on the Zenit-2M mission
Operational8 Jan 1978 · entered service
Retired8 Jan 1978 · end of operational service
Re-entered25 Jan 1978 · atmospheric re-entry — object destroyed

Specifications

NORAD ID10558
COSPAR1977-124D
TypeSatellite
OperatorTSSKB
Country / StateSU
ManufacturerTSSKB
BusNauka
Mass630 kg
ProgrammeNauka 27KS
CategoryTECH?
OrbitLEO (LLEO/I)
Altitude198 × 312 km
Inclination71.4°

Frequently asked questions

What happened to Nauka 27KS No. 1L?

Nauka 27KS No. 1L re-entered Earth's atmosphere on 25 Jan 1978, 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 Nauka 27KS No. 1L re-enter the atmosphere?

Nauka 27KS No. 1L re-entered on 25 Jan 1978, according to Orbital Radar's historical catalogue records.

Who operated and built Nauka 27KS No. 1L?

Nauka 27KS No. 1L was operated by TSSKB and built by TSSKB (SU).

Launched together

Gektor No. 83LRe-entered 1978
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.