HomeLibraryRe-entered SatellitesAVL-802 Rigid Sphere
🛰️ SATELLITE · HISTORICAL RECORD

AVL-802 Rigid Sphere

Re-entered 1 Sep 1981

AVL-802 Rigid Sphere (NORAD 5410, COSPAR 1971-067P) was a US satellite that re-entered Earth's atmosphere on 1 Sep 1981, launched on 7 Aug 1971 on the OAR-901 mission. It was operated by SAMSO / AFAL as part of the OV1 A programme. The spacecraft was built by AFAL/GOYR? on the AVL-802 bus, with a mass of 10 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
1981
re-entered
10
years on orbit
10
kg mass

Lifecycle

Launched7 Aug 1971 · on the OAR-901 mission
Operational7 Aug 1971 · entered service
Retired7 Aug 1971 · end of operational service
Re-entered1 Sep 1981 · atmospheric re-entry — object destroyed

Specifications

NORAD ID5410
COSPAR1971-067P
TypeSatellite
OperatorSAMSO / AFAL
Country / StateUS
ManufacturerAFAL/GOYR?
BusAVL-802
Mass10 kg
ProgrammeOV1 A
CategorySCI
OrbitLEO (LEO/P)
Altitude784 × 916 km
Inclination87.6°

Frequently asked questions

What happened to AVL-802 Rigid Sphere?

AVL-802 Rigid Sphere re-entered Earth's atmosphere on 1 Sep 1981, 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 AVL-802 Rigid Sphere re-enter the atmosphere?

AVL-802 Rigid Sphere re-entered on 1 Sep 1981, according to Orbital Radar's historical catalogue records.

Who operated and built AVL-802 Rigid Sphere?

AVL-802 Rigid Sphere was operated by SAMSO / AFAL and built by AFAL/GOYR? (US).

Launched together

OV1-20P/FW4SRe-entered 1971OV1-21P/FW4SNORAD 5397OAR-901Re-entered 1972OAR-907Re-entered 1971LCS 4NORAD 5398AVL-802Re-entered 1972AVL-802Re-entered 1979AVL-802Re-entered 1979
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.