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🛰️ SATELLITE · HISTORICAL RECORD

Gektor No. 25L

Re-entered 19 Oct 1971

Gektor No. 25L (NORAD 5536, COSPAR 1971-085A) was a SU satellite that re-entered Earth's atmosphere on 19 Oct 1971, launched on 7 Oct 1971 on the Zenit-2M mission. It was operated by GUKOSR as part of the Zenit-2M programme. The spacecraft was built by TSKBE3 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.

1971
launched
1971
re-entered
0
years on orbit
2,200
kg mass

Lifecycle

Launched7 Oct 1971 · on the Zenit-2M mission
Operational19 Oct 1971 · entered service
Retired19 Oct 1971 · end of operational service
Re-entered19 Oct 1971 · atmospheric re-entry — object destroyed

Specifications

NORAD ID5536
COSPAR1971-085A
TypeSatellite
OperatorGUKOSR
Country / StateSU
ManufacturerTSKBE3
BusZenit-2M
Mass2,200 kg
ProgrammeZenit-2M
CategoryIMG
OrbitLEO (LLEO/I)
Altitude201 × 300 km
Inclination65.4°

Frequently asked questions

What happened to Gektor No. 25L?

Gektor No. 25L re-entered Earth's atmosphere on 19 Oct 1971, ending a mission that began with its launch in 1971. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Gektor No. 25L re-enter the atmosphere?

Gektor No. 25L re-entered on 19 Oct 1971, according to Orbital Radar's historical catalogue records.

Who operated and built Gektor No. 25L?

Gektor No. 25L was operated by GUKOSR and built by TSKBE3 (SU).

Launched together

Nauka 8KS No. 2LRe-entered 1971
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.