🛰️ SATELLITE · HISTORICAL RECORD
Isis B
Retired 1984Isis B (NORAD 5104, COSPAR 1971-024A) is a retired CA satellite, withdrawn from service around 1 Mar 1984, launched on 1 Apr 1971 on the Isis B mission. It was operated by CRC as part of the Isis programme. The spacecraft was built by RCAV on the Isis bus, with a mass of 264 kg. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.
1971
launched
1984
retired
55
years on orbit
264
kg mass
Lifecycle
Launched1 Apr 1971 · on the Isis B mission
Operational1 Mar 1984 · entered service
Retired1 Mar 1984 · end of operational service
StatusOn orbit (not live-tracked)
Specifications
NORAD ID5104
COSPAR1971-024A
TypeSatellite
OperatorCRC
Country / StateCA
ManufacturerRCAV
BusIsis
Mass264 kg
ProgrammeIsis
CategorySCI
OrbitLEO (LEO/P)
Altitude1,356 × 1,428 km
Inclination88.2°
Frequently asked questions
What happened to Isis B?
Isis B was retired from service around 1 Mar 1984 after launching in 1971. It is no longer operational but remains catalogued.
Who operated and built Isis B?
Isis B was operated by CRC and built by RCAV (CA).
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.