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🛰️ SATELLITE · HISTORICAL RECORD

Terilen No. 9L

Re-entered 2 Dec 1987

Terilen No. 9L (NORAD 17876, COSPAR 1987-033A) was a SU satellite that re-entered Earth's atmosphere on 2 Dec 1987, launched on 16 Apr 1987 on the Terilen mission. It was operated by UNKS as part of the Terilen programme. The spacecraft was built by TSSKB on the Yantar'-4KS1 bus, with a mass of 3,390 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.

1987
launched
1987
re-entered
0
years on orbit
3,390
kg mass

Lifecycle

Launched16 Apr 1987 · on the Terilen mission
Operational2 Dec 1987 · entered service
Retired2 Dec 1987 · end of operational service
Re-entered2 Dec 1987 · atmospheric re-entry — object destroyed

Specifications

NORAD ID17876
COSPAR1987-033A
TypeSatellite
OperatorUNKS
Country / StateSU
ManufacturerTSSKB
BusYantar'-4KS1
Mass3,390 kg
ProgrammeTerilen
CategoryIMG
OrbitLEO (LLEO/I)
Altitude226 × 261 km
Inclination64.8°

Frequently asked questions

What happened to Terilen No. 9L?

Terilen No. 9L re-entered Earth's atmosphere on 2 Dec 1987, ending a mission that began with its launch in 1987. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Terilen No. 9L re-enter the atmosphere?

Terilen No. 9L re-entered on 2 Dec 1987, according to Orbital Radar's historical catalogue records.

Who operated and built Terilen No. 9L?

Terilen No. 9L was operated by UNKS and built by TSSKB (SU).

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