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Molniya-3 No. 17L

Re-entered 6 Feb 1990

Molniya-3 No. 17L (NORAD 9635, COSPAR 1976-127A) was a SU satellite that re-entered Earth's atmosphere on 6 Feb 1990, launched on 28 Dec 1976 on the Molniya-3 No. 17 mission. It was operated by OKB10 / MSVYAZ as part of the Molniya-3 programme. The spacecraft was built by OKB10 on the Molniya-3 bus, with a mass of 1,750 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.

1976
launched
1990
re-entered
14
years on orbit
1,750
kg mass

Lifecycle

Launched28 Dec 1976 · on the Molniya-3 No. 17 mission
Operational20 Jun 1980 · entered service
Retired20 Jun 1980 · end of operational service
Re-entered6 Feb 1990 · atmospheric re-entry — object destroyed

Specifications

NORAD ID9635
COSPAR1976-127A
TypeSatellite
OperatorOKB10 / MSVYAZ
Country / StateSU
ManufacturerOKB10
BusMolniya-3
Mass1,750 kg (1,700 kg dry)
ProgrammeMolniya-3
CategoryCOM
OrbitHEO (HEO/M)
Altitude628 × 39,724 km
Inclination62.9°

Frequently asked questions

What happened to Molniya-3 No. 17L?

Molniya-3 No. 17L re-entered Earth's atmosphere on 6 Feb 1990, ending a mission that began with its launch in 1976. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Molniya-3 No. 17L re-enter the atmosphere?

Molniya-3 No. 17L re-entered on 6 Feb 1990, according to Orbital Radar's historical catalogue records.

Who operated and built Molniya-3 No. 17L?

Molniya-3 No. 17L was operated by OKB10 / MSVYAZ and built by OKB10 (SU).

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