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🛰️ SATELLITE · HISTORICAL RECORD

Energiya No. 1L

Re-entered 11 Apr 1972

Energiya No. 1L (NORAD 5936, COSPAR 1972-027A) was a SU satellite that re-entered Earth's atmosphere on 11 Apr 1972, launched on 7 Apr 1972 on the Energiya No. 1 mission. It was operated by TSKBE3 as part of the Energiya programme. The spacecraft was built by TSKBE3 on the 13KS Energiya 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.

1972
launched
1972
re-entered
0
years on orbit
2,886
kg mass

Lifecycle

Launched7 Apr 1972 · on the Energiya No. 1 mission
Operational11 Apr 1972 · entered service
Retired11 Apr 1972 · end of operational service
Re-entered11 Apr 1972 · atmospheric re-entry — object destroyed

Specifications

NORAD ID5936
COSPAR1972-027A
TypeSatellite
OperatorTSKBE3
Country / StateSU
ManufacturerTSKBE3
Bus13KS Energiya
Mass2,886 kg
ProgrammeEnergiya
CategorySCI
OrbitLEO (LLEO/I)
Altitude202 × 244 km
Inclination51.8°

Frequently asked questions

What happened to Energiya No. 1L?

Energiya No. 1L re-entered Earth's atmosphere on 11 Apr 1972, ending a mission that began with its launch in 1972. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

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

Energiya No. 1L re-entered on 11 Apr 1972, according to Orbital Radar's historical catalogue records.

Who operated and built Energiya No. 1L?

Energiya No. 1L was operated by TSKBE3 and built by TSKBE3 (SU).

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