🛰️ SATELLITE · HISTORICAL RECORD
Oko 73D6 No. 6045
Retired 1992Oko 73D6 No. 6045 (NORAD 20596, COSPAR 1990-040A) is a retired SU satellite, withdrawn from service around 28 Sep 1992, launched on 28 Apr 1990 on the Oko mission. It was operated by PVO as part of the Oko E programme. The spacecraft was built by NPOL/KOMET on the Oko bus, with a mass of 1,250 kg. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.
1990
launched
1992
retired
36
years on orbit
1,250
kg mass
Lifecycle
Launched28 Apr 1990 · on the Oko mission
Operational28 Sep 1992 · entered service
Retired28 Sep 1992 · end of operational service
StatusOn orbit (not live-tracked)
Specifications
NORAD ID20596
COSPAR1990-040A
TypeSatellite
OperatorPVO
Country / StateSU
ManufacturerNPOL/KOMET
BusOko
Mass1,250 kg (1,150 kg dry)
ProgrammeOko E
CategoryEW
OrbitHEO (HEO/M)
Altitude591 × 39,768 km
Inclination63.1°
Frequently asked questions
What happened to Oko 73D6 No. 6045?
Oko 73D6 No. 6045 was retired from service around 28 Sep 1992 after launching in 1990. It is no longer operational but remains catalogued.
Who operated and built Oko 73D6 No. 6045?
Oko 73D6 No. 6045 was operated by PVO and built by NPOL/KOMET (SU).
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.