🛰️ SATELLITE · HISTORICAL RECORD
DMSP Block 2 F-1
Retired 1966DMSP Block 2 F-1 (NORAD 1580, COSPAR 1965-072A) is a retired US satellite, withdrawn from service around 22 Sep 1966, launched on 10 Sep 1965 on the DAPP 13 mission. It was operated by AFSSD as part of the DAPP2 programme. The spacecraft was built by RCA on the P35 bus, with a mass of 72 kg. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.
1965
launched
1966
retired
61
years on orbit
72
kg mass
Lifecycle
Launched10 Sep 1965 · on the DAPP 13 mission
Operational22 Sep 1966 · entered service
Retired22 Sep 1966 · end of operational service
StatusOn orbit (not live-tracked)
Specifications
NORAD ID1580
COSPAR1965-072A
TypeSatellite
OperatorAFSSD
Country / StateUS
ManufacturerRCA
BusP35
Mass72 kg
ProgrammeDAPP2
CategoryMET
OrbitLEO (LEO/S)
Altitude648 × 1,051 km
Inclination98.7°
Frequently asked questions
What happened to DMSP Block 2 F-1?
DMSP Block 2 F-1 was retired from service around 22 Sep 1966 after launching in 1965. It is no longer operational but remains catalogued.
Who operated and built DMSP Block 2 F-1?
DMSP Block 2 F-1 was operated by AFSSD and built by RCA (US).
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.