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🛰️ SATELLITE · HISTORICAL RECORD

Molniya-1K No. 73L

Re-entered 13 Feb 1999

Molniya-1K No. 73L (NORAD 16187, COSPAR 1985-099A) was a SU satellite that re-entered Earth's atmosphere on 13 Feb 1999, launched on 23 Oct 1985 on the Molniya-1 11F658 No. 73 mission. It was operated by GUKOS as part of the Molniya-1K programme. The spacecraft was built by NPOPM on the Molniya-1 bus, with a mass of 1,650 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.

1985
launched
1999
re-entered
14
years on orbit
1,650
kg mass

Lifecycle

Launched23 Oct 1985 · on the Molniya-1 11F658 No. 73 mission
Operational1 Mar 1988 · entered service
Retired1 Mar 1988 · end of operational service
Re-entered13 Feb 1999 · atmospheric re-entry — object destroyed

Specifications

NORAD ID16187
COSPAR1985-099A
TypeSatellite
OperatorGUKOS
Country / StateSU
ManufacturerNPOPM
BusMolniya-1
Mass1,650 kg (1,620 kg dry)
ProgrammeMolniya-1K
CategoryCOM
OrbitHEO (HEO/M)
Altitude596 × 39,759 km
Inclination63.1°

Frequently asked questions

What happened to Molniya-1K No. 73L?

Molniya-1K No. 73L re-entered Earth's atmosphere on 13 Feb 1999, ending a mission that began with its launch in 1985. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Molniya-1K No. 73L re-enter the atmosphere?

Molniya-1K No. 73L re-entered on 13 Feb 1999, according to Orbital Radar's historical catalogue records.

Who operated and built Molniya-1K No. 73L?

Molniya-1K No. 73L was operated by GUKOS and built by NPOPM (SU).

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