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🛰️ SATELLITE · HISTORICAL RECORD

Oblik No. 811

Re-entered 28 Apr 1990

Oblik No. 811 (NORAD 20573, COSPAR 1990-035A) was a SU satellite that re-entered Earth's atmosphere on 28 Apr 1990, launched on 17 Apr 1990 on the Oblik mission. It was operated by UNKS as part of the Oblik programme. The spacecraft was built by TSSKB on the Oblik bus, with a mass of 2,655 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.

1990
launched
1990
re-entered
0
years on orbit
2,655
kg mass

Lifecycle

Launched17 Apr 1990 · on the Oblik mission
Operational28 Apr 1990 · entered service
Retired28 Apr 1990 · end of operational service
Re-entered28 Apr 1990 · atmospheric re-entry — object destroyed

Specifications

NORAD ID20573
COSPAR1990-035A
TypeSatellite
OperatorUNKS
Country / StateSU
ManufacturerTSSKB
BusOblik
Mass2,655 kg
ProgrammeOblik
CategoryIMG
OrbitLEO (LLEO/I)
Altitude231 × 297 km
Inclination82.4°

Frequently asked questions

What happened to Oblik No. 811?

Oblik No. 811 re-entered Earth's atmosphere on 28 Apr 1990, ending a mission that began with its launch in 1990. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Oblik No. 811 re-enter the atmosphere?

Oblik No. 811 re-entered on 28 Apr 1990, according to Orbital Radar's historical catalogue records.

Who operated and built Oblik No. 811?

Oblik No. 811 was operated by UNKS and built by TSSKB (SU).

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