🛰️ SATELLITE · HISTORICAL RECORD
NNS O-19
Retired 1984NNS O-19 (NORAD 4507, COSPAR 1970-067A) is a retired US satellite, withdrawn from service around 5 Dec 1984, launched on 27 Aug 1970 on the NNS O-19 mission. It was operated by NAVAIR as part of the NNS R programme. The spacecraft was built by RCA on the Transit 5 bus, with a mass of 64 kg. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.
1970
launched
1984
retired
56
years on orbit
64
kg mass
Lifecycle
Launched27 Aug 1970 · on the NNS O-19 mission
Operational5 Dec 1984 · entered service
Retired5 Dec 1984 · end of operational service
StatusOn orbit (not live-tracked)
Specifications
NORAD ID4507
COSPAR1970-067A
TypeSatellite
OperatorNAVAIR
Country / StateUS
ManufacturerRCA
BusTransit 5
Mass64 kg
ProgrammeNNS R
CategoryNAV
OrbitLEO (LEO/P)
Altitude952 × 1,222 km
Inclination90.0°
Frequently asked questions
What happened to NNS O-19?
NNS O-19 was retired from service around 5 Dec 1984 after launching in 1970. It is no longer operational but remains catalogued.
Who operated and built NNS O-19?
NNS O-19 was operated by NAVAIR and built by RCA (US).
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.