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🛰️ SATELLITE · HISTORICAL RECORD

Kobal't No. 550

Re-entered 22 Oct 1998

Kobal't No. 550 (NORAD 25373, COSPAR 1998-038A) was a RU satellite that re-entered Earth's atmosphere on 22 Oct 1998, launched on 24 Jun 1998 on the Kobal't mission. It was operated by VKSR as part of the Kobal't programme. The spacecraft was built by PROGT 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.

1998
launched
1998
re-entered
0
years on orbit
2,886
kg mass

Lifecycle

Launched24 Jun 1998 · on the Kobal't mission
Operational22 Oct 1998 · entered service
Retired22 Oct 1998 · end of operational service
Re-entered22 Oct 1998 · atmospheric re-entry — object destroyed

Specifications

NORAD ID25373
COSPAR1998-038A
TypeSatellite
OperatorVKSR
Country / StateRU
ManufacturerPROGT
BusYantar'-4K2
Mass2,886 kg
ProgrammeKobal't
CategoryIMG
OrbitLEO (LLEO/I)
Altitude175 × 335 km
Inclination67.1°

Frequently asked questions

What happened to Kobal't No. 550?

Kobal't No. 550 re-entered Earth's atmosphere on 22 Oct 1998, ending a mission that began with its launch in 1998. 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. 550 re-enter the atmosphere?

Kobal't No. 550 re-entered on 22 Oct 1998, according to Orbital Radar's historical catalogue records.

Who operated and built Kobal't No. 550?

Kobal't No. 550 was operated by VKSR and built by PROGT (RU).

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