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Oko 73D6 No. 6028

Re-entered 2 Nov 2010

Oko 73D6 No. 6028 (NORAD 16922, COSPAR 1986-065A) was a SU satellite that re-entered Earth's atmosphere on 2 Nov 2010, launched on 28 Aug 1986 on the Oko mission. It was operated by PVO as part of the Oko E programme. The spacecraft was built by NPOL/KOMET on the Oko bus, with a mass of 1,250 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.

1986
launched
2010
re-entered
24
years on orbit
1,250
kg mass

Lifecycle

Launched28 Aug 1986 · on the Oko mission
Operational25 Apr 1988 · entered service
Retired25 Apr 1988 · end of operational service
Re-entered2 Nov 2010 · atmospheric re-entry — object destroyed

Specifications

NORAD ID16922
COSPAR1986-065A
TypeSatellite
OperatorPVO
Country / StateSU
ManufacturerNPOL/KOMET
BusOko
Mass1,250 kg (1,150 kg dry)
ProgrammeOko E
CategoryEW
OrbitHEO (HEO/M)
Altitude623 × 39,719 km
Inclination63.1°

Frequently asked questions

What happened to Oko 73D6 No. 6028?

Oko 73D6 No. 6028 re-entered Earth's atmosphere on 2 Nov 2010, ending a mission that began with its launch in 1986. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Oko 73D6 No. 6028 re-enter the atmosphere?

Oko 73D6 No. 6028 re-entered on 2 Nov 2010, according to Orbital Radar's historical catalogue records.

Who operated and built Oko 73D6 No. 6028?

Oko 73D6 No. 6028 was operated by PVO and built by NPOL/KOMET (SU).

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