🛰️ SATELLITE · HISTORICAL RECORD
IDCSP 18
Retired 1972IDCSP 18 (NORAD 2864, COSPAR 1967-066C) is a retired US satellite, withdrawn from service around 1 Jan 1972, launched on 1 Jul 1967 on the IDCSP 16 mission. It was operated by SAMSO as part of the IDCSP programme. The spacecraft was built by PHFP on the IDCSP bus, with a mass of 45 kg. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.
1967
launched
1972
retired
59
years on orbit
45
kg mass
Lifecycle
Launched1 Jul 1967 · on the IDCSP 16 mission
Operational1 Jan 1972 · entered service
Retired1 Jan 1972 · end of operational service
StatusOn orbit (not live-tracked)
Specifications
NORAD ID2864
COSPAR1967-066C
TypeSatellite
OperatorSAMSO
Country / StateUS
ManufacturerPHFP
BusIDCSP
Mass45 kg
ProgrammeIDCSP
CategoryCOM
OrbitMEO (MEO)
Altitude33,092 × 33,537 km
Inclination6.9°
Frequently asked questions
What happened to IDCSP 18?
IDCSP 18 was retired from service around 1 Jan 1972 after launching in 1967. It is no longer operational but remains catalogued.
Who operated and built IDCSP 18?
IDCSP 18 was operated by SAMSO and built by PHFP (US).
Launched together
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.