🛰️ SATELLITE · HISTORICAL RECORD
QUASAR 7
Retired 1999QUASAR 7 (NORAD 20167, COSPAR 1989-061B) is a retired US satellite, withdrawn from service around 1 Jan 1999, launched on 8 Aug 1989 on the OV-102 Medium deploy mission. It was operated by NRO / SAFSP as part of the SDS-B programme. The spacecraft was built by HSES on the SDS B bus, with a mass of 5,692 kg. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.
1989
launched
1999
retired
37
years on orbit
5,692
kg mass
Lifecycle
Launched8 Aug 1989 · on the OV-102 Medium deploy mission
Operational1 Jan 1999 · entered service
Retired1 Jan 1999 · end of operational service
StatusOn orbit (not live-tracked)
Specifications
NORAD ID20167
COSPAR1989-061B
TypeSatellite
OperatorNRO / SAFSP
Country / StateUS
ManufacturerHSES
BusSDS B
Mass5,692 kg (4,500 kg dry)
ProgrammeSDS-B
CategoryCOM
OrbitHEO (HEO/M)
Altitude1,000 × 39,400 km
Inclination63.0°
Frequently asked questions
What happened to QUASAR 7?
QUASAR 7 was retired from service around 1 Jan 1999 after launching in 1989. It is no longer operational but remains catalogued.
Who operated and built QUASAR 7?
QUASAR 7 was operated by NRO / SAFSP and built by HSES (US).
Launched together
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.