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🛰️ SATELLITE · HISTORICAL RECORD

Efir No. 1L

Re-entered 5 Apr 1984

Efir No. 1L (NORAD 14797, COSPAR 1984-026A) was a SU satellite that re-entered Earth's atmosphere on 5 Apr 1984, launched on 10 Mar 1984 on the Efir No. 1 mission. It was operated by TSSKB as part of the Efir programme. The spacecraft was built by TSSKB on the Efir 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.

1984
launched
1984
re-entered
0
years on orbit
2,400
kg mass

Lifecycle

Launched10 Mar 1984 · on the Efir No. 1 mission
Operational5 Apr 1984 · entered service
Retired5 Apr 1984 · end of operational service
Re-entered5 Apr 1984 · atmospheric re-entry — object destroyed

Specifications

NORAD ID14797
COSPAR1984-026A
TypeSatellite
OperatorTSSKB
Country / StateSU
ManufacturerTSSKB
BusEfir
Mass2,400 kg
ProgrammeEfir
CategorySCI
OrbitLEO (LLEO/I)
Altitude216 × 391 km
Inclination62.8°

Frequently asked questions

What happened to Efir No. 1L?

Efir No. 1L re-entered Earth's atmosphere on 5 Apr 1984, ending a mission that began with its launch in 1984. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Efir No. 1L re-enter the atmosphere?

Efir No. 1L re-entered on 5 Apr 1984, according to Orbital Radar's historical catalogue records.

Who operated and built Efir No. 1L?

Efir No. 1L was operated by TSSKB and built by TSSKB (SU).

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