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🛰️ SATELLITE · HISTORICAL RECORD

Gektor No. 77L

Re-entered 13 Jun 1977

Gektor No. 77L (NORAD 10030, COSPAR 1977-043A) was a SU satellite that re-entered Earth's atmosphere on 13 Jun 1977, launched on 31 May 1977 on the Zenit-2M mission. It was operated by GUKOSR as part of the Zenit-2M programme. The spacecraft was built by TSSKB on the Zenit-2M bus, with a mass of 2,200 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
2,200
kg mass

Lifecycle

Launched31 May 1977 · on the Zenit-2M mission
Operational13 Jun 1977 · entered service
Retired13 Jun 1977 · end of operational service
Re-entered13 Jun 1977 · atmospheric re-entry — object destroyed

Specifications

NORAD ID10030
COSPAR1977-043A
TypeSatellite
OperatorGUKOSR
Country / StateSU
ManufacturerTSSKB
BusZenit-2M
Mass2,200 kg
ProgrammeZenit-2M
CategoryIMG
OrbitLEO (LLEO/I)
Altitude201 × 301 km
Inclination65.0°

Frequently asked questions

What happened to Gektor No. 77L?

Gektor No. 77L re-entered Earth's atmosphere on 13 Jun 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 Gektor No. 77L re-enter the atmosphere?

Gektor No. 77L re-entered on 13 Jun 1977, according to Orbital Radar's historical catalogue records.

Who operated and built Gektor No. 77L?

Gektor No. 77L was operated by GUKOSR and built by TSSKB (SU).

Launched together

Nauka 25KS No. 1LRe-entered 1977
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.