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🛰️ SATELLITE · HISTORICAL RECORD

Voyager 77-2

Re-entered 5 Sep 1977

Voyager 77-2 (NORAD 10321, COSPAR 1977-084A) was a US satellite that re-entered Earth's atmosphere on 5 Sep 1977, launched on 5 Sep 1977 on the Voyager 1 mission. It was operated by JPL as part of the Voyager programme. The spacecraft was built by JPL on the Voyager bus, with a mass of 820 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.

1977
launched
1977
re-entered
0
years on orbit
820
kg mass

Lifecycle

Launched5 Sep 1977 · on the Voyager 1 mission
Re-entered5 Sep 1977 · atmospheric re-entry — object destroyed

Specifications

NORAD ID10321
COSPAR1977-084A
TypeSatellite
OperatorJPL
Country / StateUS
ManufacturerJPL
BusVoyager
Mass820 kg (716 kg dry)
ProgrammeVoyager
CategoryPLAN
OrbitHEO (EEO)
Altitude327 × -20,658 km
Inclination28.5°

Frequently asked questions

What happened to Voyager 77-2?

Voyager 77-2 re-entered Earth's atmosphere on 5 Sep 1977, ending a mission that began with its launch in 1977. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Voyager 77-2 re-enter the atmosphere?

Voyager 77-2 re-entered on 5 Sep 1977, according to Orbital Radar's historical catalogue records.

Who operated and built Voyager 77-2?

Voyager 77-2 was operated by JPL and built by JPL (US).

Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.