🛰️ SATELLITE · HISTORICAL RECORD
Tsiklon-B No. 11L
Retired 1977Tsiklon-B No. 11L (NORAD 7593, COSPAR 1974-105A) is a retired SU satellite, withdrawn from service around 20 Feb 1977, launched on 26 Dec 1974 on the Tsiklon-B mission. It was operated by OKB10 as part of the Parus programme. The spacecraft was built by OKB10 on the KAUR-1 11F627 bus, with a mass of 800 kg. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.
1974
launched
1977
retired
52
years on orbit
800
kg mass
Lifecycle
Launched26 Dec 1974 · on the Tsiklon-B mission
Operational20 Feb 1977 · entered service
Retired20 Feb 1977 · end of operational service
StatusOn orbit (not live-tracked)
Specifications
NORAD ID7593
COSPAR1974-105A
TypeSatellite
OperatorOKB10
Country / StateSU
ManufacturerOKB10
BusKAUR-1 11F627
Mass800 kg
ProgrammeParus
CategoryNAV
OrbitLEO (LEO/I)
Altitude964 × 999 km
Inclination83.0°
Frequently asked questions
What happened to Tsiklon-B No. 11L?
Tsiklon-B No. 11L was retired from service around 20 Feb 1977 after launching in 1974. It is no longer operational but remains catalogued.
Who operated and built Tsiklon-B No. 11L?
Tsiklon-B No. 11L was operated by OKB10 and built by OKB10 (SU).
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.