Oko 73D6 No. 6018

Re-entered 11 May 1998

Oko 73D6 No. 6018 (NORAD 14034, COSPAR 1983-038A) was a SU satellite that re-entered Earth's atmosphere on 11 May 1998, launched on 25 Apr 1983 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.

1983

launched

1998

re-entered

years on orbit

1,250

kg mass

Lifecycle

Launched25 Apr 1983 · on the Oko mission

Operational12 Aug 1983 · entered service

Retired12 Aug 1983 · end of operational service

Re-entered11 May 1998 · atmospheric re-entry — object destroyed

Specifications

NORAD ID14034

COSPAR1983-038A

TypeSatellite

OperatorPVO

Country / StateSU

ManufacturerNPOL/KOMET

BusOko

Mass1,250 kg (1,150 kg dry)

ProgrammeOko E

CategoryEW

OrbitHEO (HEO/M)

Altitude652 × 39,710 km

Inclination63.0°

Frequently asked questions

What happened to Oko 73D6 No. 6018?

Oko 73D6 No. 6018 re-entered Earth's atmosphere on 11 May 1998, ending a mission that began with its launch in 1983. 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. 6018 re-enter the atmosphere?

Oko 73D6 No. 6018 re-entered on 11 May 1998, according to Orbital Radar's historical catalogue records.

Who operated and built Oko 73D6 No. 6018?

Oko 73D6 No. 6018 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.

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