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Tselina-D (1) No. 2L

Re-entered 3 Nov 2023

Tselina-D (1) No. 2L (NORAD 5117, COSPAR 1971-028A) was a SU satellite that re-entered Earth's atmosphere on 3 Nov 2023, launched on 7 Apr 1971 on the Tselina-D mission. It was operated by TSN108 as part of the Tselina-D1 programme. The spacecraft was built by YUZH on the Tselina-D bus, with a mass of 1,750 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
2023
re-entered
52
years on orbit
1,750
kg mass

Lifecycle

Launched7 Apr 1971 · on the Tselina-D mission
Operational1 Jan 1971 · entered service
Retired1 Jan 1971 · end of operational service
Re-entered3 Nov 2023 · atmospheric re-entry — object destroyed

Specifications

NORAD ID5117
COSPAR1971-028A
TypeSatellite
OperatorTSN108
Country / StateSU
ManufacturerYUZH
BusTselina-D
Mass1,750 kg
ProgrammeTselina-D1
CategorySIG
OrbitLEO (LEO/I)
Altitude672 × 680 km
Inclination81.2°

Frequently asked questions

What happened to Tselina-D (1) No. 2L?

Tselina-D (1) No. 2L re-entered Earth's atmosphere on 3 Nov 2023, 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 Tselina-D (1) No. 2L re-enter the atmosphere?

Tselina-D (1) No. 2L re-entered on 3 Nov 2023, according to Orbital Radar's historical catalogue records.

Who operated and built Tselina-D (1) No. 2L?

Tselina-D (1) No. 2L was operated by TSN108 and built by YUZH (SU).

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