Oko 73D6 No. 6051

Re-entered 3 May 2023

Oko 73D6 No. 6051 (NORAD 22238, COSPAR 1992-081A) was a RU satellite that re-entered Earth's atmosphere on 3 May 2023, launched on 25 Nov 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

2023

re-entered

years on orbit

1,250

kg mass

Lifecycle

Launched25 Nov 1992 · on the Oko mission

Operational1 Jan 1995 · entered service

Retired1 Jan 1995 · end of operational service

Re-entered3 May 2023 · atmospheric re-entry — object destroyed

Specifications

NORAD ID22238

COSPAR1992-081A

TypeSatellite

OperatorPVO

Country / StateRU

ManufacturerNPOL/KOMET

BusOko

Mass1,250 kg (1,150 kg dry)

ProgrammeOko E

CategoryEW

OrbitHEO (HEO/M)

Altitude640 × 39,724 km

Inclination62.9°

Frequently asked questions

What happened to Oko 73D6 No. 6051?

Oko 73D6 No. 6051 re-entered Earth's atmosphere on 3 May 2023, 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. 6051 re-enter the atmosphere?

Oko 73D6 No. 6051 re-entered on 3 May 2023, according to Orbital Radar's historical catalogue records.

Who operated and built Oko 73D6 No. 6051?

Oko 73D6 No. 6051 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? →