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🛰️ SATELLITE · HISTORICAL RECORD

Zenit-4MKM No. 82L

Re-entered 25 Jul 1977

Zenit-4MKM No. 82L (NORAD 10139, COSPAR 1977-063A) was a SU satellite that re-entered Earth's atmosphere on 25 Jul 1977, launched on 12 Jul 1977 on the Zenit-4MKM mission. It was operated by GUKOSR as part of the Zenit-4MKM programme. The spacecraft was built by TSSKB on the Zenit-4MK bus, with a mass of 2,400 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.

1977
launched
1977
re-entered
0
years on orbit
2,400
kg mass

Lifecycle

Launched12 Jul 1977 · on the Zenit-4MKM mission
Operational25 Jul 1977 · entered service
Retired25 Jul 1977 · end of operational service
Re-entered25 Jul 1977 · atmospheric re-entry — object destroyed

Specifications

NORAD ID10139
COSPAR1977-063A
TypeSatellite
OperatorGUKOSR
Country / StateSU
ManufacturerTSSKB
BusZenit-4MK
Mass2,400 kg
ProgrammeZenit-4MKM
CategoryIMG
OrbitLEO (LLEO/I)
Altitude148 × 359 km
Inclination72.9°

Frequently asked questions

What happened to Zenit-4MKM No. 82L?

Zenit-4MKM No. 82L re-entered Earth's atmosphere on 25 Jul 1977, ending a mission that began with its launch in 1977. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Zenit-4MKM No. 82L re-enter the atmosphere?

Zenit-4MKM No. 82L re-entered on 25 Jul 1977, according to Orbital Radar's historical catalogue records.

Who operated and built Zenit-4MKM No. 82L?

Zenit-4MKM No. 82L was operated by GUKOSR and built by TSSKB (SU).

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