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Yantar'-4K2 No. 1L

Re-entered 2 Oct 1981

Yantar'-4K2 No. 1L (NORAD 12776, COSPAR 1981-080A) was a SU satellite that re-entered Earth's atmosphere on 2 Oct 1981, launched on 21 Aug 1981 on the Yantar'-4K2 mission. It was operated by TSSKB as part of the Kobal't programme. The spacecraft was built by TSSKB on the Yantar'-4K2 bus, with a mass of 2,886 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.

1981
launched
1981
re-entered
0
years on orbit
2,886
kg mass

Lifecycle

Launched21 Aug 1981 · on the Yantar'-4K2 mission
Operational2 Oct 1981 · entered service
Retired2 Oct 1981 · end of operational service
Re-entered2 Oct 1981 · atmospheric re-entry — object destroyed

Specifications

NORAD ID12776
COSPAR1981-080A
TypeSatellite
OperatorTSSKB
Country / StateSU
ManufacturerTSSKB
BusYantar'-4K2
Mass2,886 kg
ProgrammeKobal't
CategoryIMG
OrbitLEO (LLEO/I)
Altitude162 × 281 km
Inclination64.9°

Frequently asked questions

What happened to Yantar'-4K2 No. 1L?

Yantar'-4K2 No. 1L re-entered Earth's atmosphere on 2 Oct 1981, ending a mission that began with its launch in 1981. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Yantar'-4K2 No. 1L re-enter the atmosphere?

Yantar'-4K2 No. 1L re-entered on 2 Oct 1981, according to Orbital Radar's historical catalogue records.

Who operated and built Yantar'-4K2 No. 1L?

Yantar'-4K2 No. 1L was operated by TSSKB and built by TSSKB (SU).

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