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🛰️ SATELLITE · HISTORICAL RECORD

OAR-907

Re-entered 19 Sep 1971

OAR-907 (NORAD 5383, COSPAR 1971-067D) was a US satellite that re-entered Earth's atmosphere on 19 Sep 1971, launched on 7 Aug 1971 on the OAR-901 mission. It was operated by STP / AFCRL as part of the OV1 A programme. The spacecraft was built by AFCRL on the RTDS bus, with a mass of 72 kg. Like most satellites in low orbits, it was gradually slowed by atmospheric drag until re-entry. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.

1971
launched
1971
re-entered
0
years on orbit
72
kg mass

Lifecycle

Launched7 Aug 1971 · on the OAR-901 mission
Operational19 Sep 1971 · entered service
Retired19 Sep 1971 · end of operational service
Re-entered19 Sep 1971 · atmospheric re-entry — object destroyed

Specifications

NORAD ID5383
COSPAR1971-067D
TypeSatellite
OperatorSTP / AFCRL
Country / StateUS
ManufacturerAFCRL
BusRTDS
Mass72 kg
ProgrammeOV1 A
CategorySCI
OrbitLEO (LLEO/P)
Altitude131 × 811 km
Inclination87.6°

Frequently asked questions

What happened to OAR-907?

OAR-907 re-entered Earth's atmosphere on 19 Sep 1971, ending a mission that began with its launch in 1971. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did OAR-907 re-enter the atmosphere?

OAR-907 re-entered on 19 Sep 1971, according to Orbital Radar's historical catalogue records.

Who operated and built OAR-907?

OAR-907 was operated by STP / AFCRL and built by AFCRL (US).

Launched together

OV1-20P/FW4SRe-entered 1971OV1-21P/FW4SNORAD 5397OAR-901Re-entered 1972LCS 4NORAD 5398AVL-802Re-entered 1972AVL-802Re-entered 1979AVL-802Re-entered 1979AVL-802 Rigid SphereRe-entered 1981
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.