Oko 73D6 No. 6050

Re-entered 17 Jan 2012

Oko 73D6 No. 6050 (NORAD 21847, COSPAR 1992-003A) was a RU satellite that re-entered Earth's atmosphere on 17 Jan 2012, launched on 24 Jan 1992 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.

1992

launched

2012

re-entered

years on orbit

1,250

kg mass

Lifecycle

Launched24 Jan 1992 · on the Oko mission

Operational1 Jan 1995 · entered service

Retired1 Jan 1995 · end of operational service

Re-entered17 Jan 2012 · atmospheric re-entry — object destroyed

Specifications

NORAD ID21847

COSPAR1992-003A

TypeSatellite

OperatorPVO

Country / StateRU

ManufacturerNPOL/KOMET

BusOko

Mass1,250 kg (1,150 kg dry)

ProgrammeOko E

CategoryEW

OrbitHEO (HEO/M)

Altitude633 × 39,725 km

Inclination62.9°

Frequently asked questions

What happened to Oko 73D6 No. 6050?

Oko 73D6 No. 6050 re-entered Earth's atmosphere on 17 Jan 2012, ending a mission that began with its launch in 1992. 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. 6050 re-enter the atmosphere?

Oko 73D6 No. 6050 re-entered on 17 Jan 2012, according to Orbital Radar's historical catalogue records.

Who operated and built Oko 73D6 No. 6050?

Oko 73D6 No. 6050 was operated by PVO and built by NPOL/KOMET (RU).

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

Browse the live satellite directory → Re-entered satellites archive → Launch record: Oko → What is space debris? →