🛰️ SATELLITE · HISTORICAL RECORD
Strela-1M Blok 16 No. 4
Retired 1978Strela-1M Blok 16 No. 4 (NORAD 9591, COSPAR 1976-118D) is a retired SU satellite, withdrawn from service around 1 Jan 1978, launched on 7 Dec 1976 on the Strela-1M mission. It was operated by GUKOSR as part of the Strela-1M programme. The spacecraft was built by OKB10 on the Strela-1 11F625 bus, with a mass of 60 kg. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.
1976
launched
1978
retired
50
years on orbit
60
kg mass
Lifecycle
Launched7 Dec 1976 · on the Strela-1M mission
Operational1 Jan 1978 · entered service
Retired1 Jan 1978 · end of operational service
StatusOn orbit (not live-tracked)
Specifications
NORAD ID9591
COSPAR1976-118D
TypeSatellite
OperatorGUKOSR
Country / StateSU
ManufacturerOKB10
BusStrela-1 11F625
Mass60 kg
ProgrammeStrela-1M
CategoryCOM
OrbitLEO (LEO/I)
Altitude1,464 × 1,516 km
Inclination74.0°
Frequently asked questions
What happened to Strela-1M Blok 16 No. 4?
Strela-1M Blok 16 No. 4 was retired from service around 1 Jan 1978 after launching in 1976. It is no longer operational but remains catalogued.
Who operated and built Strela-1M Blok 16 No. 4?
Strela-1M Blok 16 No. 4 was operated by GUKOSR and built by OKB10 (SU).
Launched together
Strela-1M Blok 16 No. 1Strela-1M Blok 16 No. 2Strela-1M Blok 16 No. 3Strela-1M Blok 16 No. 5Strela-1M Blok 16 No. 6Strela-1M Blok 16 No. 7Strela-1M Blok 16 No. 8
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.