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🛰️ SATELLITE · HISTORICAL RECORD

Kobal't No. 507

Re-entered 11 Sep 1986

Kobal't No. 507 (NORAD 16861, COSPAR 1986-053A) was a SU satellite that re-entered Earth's atmosphere on 11 Sep 1986, launched on 17 Jul 1986 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.

1986
launched
1986
re-entered
0
years on orbit
2,886
kg mass

Lifecycle

Launched17 Jul 1986 · on the Kobal't mission
Operational11 Sep 1986 · entered service
Retired11 Sep 1986 · end of operational service
Re-entered11 Sep 1986 · atmospheric re-entry — object destroyed

Specifications

NORAD ID16861
COSPAR1986-053A
TypeSatellite
OperatorUNKS
Country / StateSU
ManufacturerTSSKB
BusYantar'-4K2
Mass2,886 kg
ProgrammeKobal't
CategoryIMG
OrbitLEO (LLEO/I)
Altitude170 × 334 km
Inclination64.9°

Frequently asked questions

What happened to Kobal't No. 507?

Kobal't No. 507 re-entered Earth's atmosphere on 11 Sep 1986, ending a mission that began with its launch in 1986. 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. 507 re-enter the atmosphere?

Kobal't No. 507 re-entered on 11 Sep 1986, according to Orbital Radar's historical catalogue records.

Who operated and built Kobal't No. 507?

Kobal't No. 507 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.