🛰️ SATELLITE · HISTORICAL RECORD
NRL PL157C
Retired 1969NRL PL157C (NORAD 4168, COSPAR 1969-082H) is a retired US satellite, withdrawn from service around 30 Sep 1969, launched on 30 Sep 1969 on the P-11 No. 4407 mission. It was operated by NRL as part of the NRL Cal programme. The spacecraft was built by NRL on the NRL 14"? bus, with a mass of 14 kg. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.
1969
launched
1969
retired
57
years on orbit
14
kg mass
Lifecycle
Launched30 Sep 1969 · on the P-11 No. 4407 mission
Operational30 Sep 1969 · entered service
Retired30 Sep 1969 · end of operational service
StatusOn orbit (not live-tracked)
Specifications
NORAD ID4168
COSPAR1969-082H
TypeSatellite
OperatorNRL
Country / StateUS
ManufacturerNRL
BusNRL 14"?
Mass14 kg
ProgrammeNRL Cal
CategoryCAL
OrbitLEO (LEO/I)
Altitude907 × 936 km
Inclination70.0°
Frequently asked questions
What happened to NRL PL157C?
NRL PL157C was retired from service around 30 Sep 1969 after launching in 1969. It is no longer operational but remains catalogued.
Who operated and built NRL PL157C?
NRL PL157C was operated by NRL and built by NRL (US).
Launched together
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.