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🛰️ SATELLITE · HISTORICAL RECORD

Kobal't No. 504

Re-entered 23 Dec 1985

Kobal't No. 504 (NORAD 16198, COSPAR 1985-101A) was a SU satellite that re-entered Earth's atmosphere on 23 Dec 1985, launched on 25 Oct 1985 on the Kobal't mission. It was operated by GUKOS 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.

1985
launched
1985
re-entered
0
years on orbit
2,886
kg mass

Lifecycle

Launched25 Oct 1985 · on the Kobal't mission
Operational23 Dec 1985 · entered service
Retired23 Dec 1985 · end of operational service
Re-entered23 Dec 1985 · atmospheric re-entry — object destroyed

Specifications

NORAD ID16198
COSPAR1985-101A
TypeSatellite
OperatorGUKOS
Country / StateSU
ManufacturerTSSKB
BusYantar'-4K2
Mass2,886 kg
ProgrammeKobal't
CategoryIMG
OrbitLEO (LLEO/I)
Altitude160 × 301 km
Inclination67.1°

Frequently asked questions

What happened to Kobal't No. 504?

Kobal't No. 504 re-entered Earth's atmosphere on 23 Dec 1985, ending a mission that began with its launch in 1985. 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. 504 re-enter the atmosphere?

Kobal't No. 504 re-entered on 23 Dec 1985, according to Orbital Radar's historical catalogue records.

Who operated and built Kobal't No. 504?

Kobal't No. 504 was operated by GUKOS and built by TSSKB (SU).

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