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🛰️ SATELLITE · HISTORICAL RECORD

Kobal't No. 528

Re-entered 12 Dec 1990

Kobal't No. 528 (NORAD 20909, COSPAR 1990-092A) was a SU satellite that re-entered Earth's atmosphere on 12 Dec 1990, launched on 16 Oct 1990 on the Kobal't mission. It was operated by UNKS as part of the Kobal't programme. The spacecraft was built by TSSKB on the Yantar'-4K2 bus, with a mass of 2,886 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
2,886
kg mass

Lifecycle

Launched16 Oct 1990 · on the Kobal't mission
Operational12 Dec 1990 · entered service
Retired12 Dec 1990 · end of operational service
Re-entered12 Dec 1990 · atmospheric re-entry — object destroyed

Specifications

NORAD ID20909
COSPAR1990-092A
TypeSatellite
OperatorUNKS
Country / StateSU
ManufacturerTSSKB
BusYantar'-4K2
Mass2,886 kg
ProgrammeKobal't
CategoryIMG
OrbitLEO (LLEO/I)
Altitude187 × 344 km
Inclination62.9°

Frequently asked questions

What happened to Kobal't No. 528?

Kobal't No. 528 re-entered Earth's atmosphere on 12 Dec 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 Kobal't No. 528 re-enter the atmosphere?

Kobal't No. 528 re-entered on 12 Dec 1990, according to Orbital Radar's historical catalogue records.

Who operated and built Kobal't No. 528?

Kobal't No. 528 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.