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Orlets-1 No. 3L

Re-entered 6 Dec 1991

Orlets-1 No. 3L (NORAD 21741, COSPAR 1991-071A) was a SU satellite that re-entered Earth's atmosphere on 6 Dec 1991, launched on 9 Oct 1991 on the Orlets mission. It was operated by TSSKB as part of the Don programme. The spacecraft was built by TSSKB on the Orlets bus, with a mass of 3,590 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.

1991
launched
1991
re-entered
0
years on orbit
3,590
kg mass

Lifecycle

Launched9 Oct 1991 · on the Orlets mission
Operational7 Dec 1991 · entered service
Retired7 Dec 1991 · end of operational service
Re-entered6 Dec 1991 · atmospheric re-entry — object destroyed

Specifications

NORAD ID21741
COSPAR1991-071A
TypeSatellite
OperatorTSSKB
Country / StateSU
ManufacturerTSSKB
BusOrlets
Mass3,590 kg
ProgrammeDon
CategoryIMG
OrbitLEO (LLEO/I)
Altitude207 × 338 km
Inclination64.8°

Frequently asked questions

What happened to Orlets-1 No. 3L?

Orlets-1 No. 3L re-entered Earth's atmosphere on 6 Dec 1991, ending a mission that began with its launch in 1991. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Orlets-1 No. 3L re-enter the atmosphere?

Orlets-1 No. 3L re-entered on 6 Dec 1991, according to Orbital Radar's historical catalogue records.

Who operated and built Orlets-1 No. 3L?

Orlets-1 No. 3L 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.