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🛰️ SATELLITE · HISTORICAL RECORD

D-2B Gamma

Re-entered 20 Jun 1979

D-2B Gamma (NORAD 10064, COSPAR 1977-049A) was a F satellite that re-entered Earth's atmosphere on 20 Jun 1979, launched on 17 Jun 1977 on the Signe 3 mission. It was operated by CNES as part of the Diamant Ast programme. The spacecraft was built by MATT on the D-2B bus, with a mass of 104 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
1979
re-entered
2
years on orbit
104
kg mass

Lifecycle

Launched17 Jun 1977 · on the Signe 3 mission
Operational20 Jun 1979 · entered service
Retired20 Jun 1979 · end of operational service
Re-entered20 Jun 1979 · atmospheric re-entry — object destroyed

Specifications

NORAD ID10064
COSPAR1977-049A
TypeSatellite
OperatorCNES
Country / StateF
ManufacturerMATT
BusD-2B
Mass104 kg
ProgrammeDiamant Ast
CategoryAST
OrbitLEO (LLEO/I)
Altitude458 × 518 km
Inclination50.7°

Frequently asked questions

What happened to D-2B Gamma?

D-2B Gamma re-entered Earth's atmosphere on 20 Jun 1979, 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 D-2B Gamma re-enter the atmosphere?

D-2B Gamma re-entered on 20 Jun 1979, according to Orbital Radar's historical catalogue records.

Who operated and built D-2B Gamma?

D-2B Gamma was operated by CNES and built by MATT (F).

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