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Yantar'-4KS1 No. 1L

Re-entered 5 Mar 1983

Yantar'-4KS1 No. 1L (NORAD 13745, COSPAR 1982-120A) was a SU satellite that re-entered Earth's atmosphere on 5 Mar 1983, launched on 28 Dec 1982 on the Yantar'-4KS1 mission. It was operated by TSSKB as part of the Terilen programme. The spacecraft was built by TSSKB on the Yantar'-4KS1 bus, with a mass of 3,390 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.

1982
launched
1983
re-entered
1
year on orbit
3,390
kg mass

Lifecycle

Launched28 Dec 1982 · on the Yantar'-4KS1 mission
Operational5 Mar 1983 · entered service
Retired5 Mar 1983 · end of operational service
Re-entered5 Mar 1983 · atmospheric re-entry — object destroyed

Specifications

NORAD ID13745
COSPAR1982-120A
TypeSatellite
OperatorTSSKB
Country / StateSU
ManufacturerTSSKB
BusYantar'-4KS1
Mass3,390 kg
ProgrammeTerilen
CategoryIMG
OrbitLEO (LLEO/I)
Altitude206 × 310 km
Inclination50.5°

Frequently asked questions

What happened to Yantar'-4KS1 No. 1L?

Yantar'-4KS1 No. 1L re-entered Earth's atmosphere on 5 Mar 1983, ending a mission that began with its launch in 1982. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Yantar'-4KS1 No. 1L re-enter the atmosphere?

Yantar'-4KS1 No. 1L re-entered on 5 Mar 1983, according to Orbital Radar's historical catalogue records.

Who operated and built Yantar'-4KS1 No. 1L?

Yantar'-4KS1 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.