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Nauka 1KS No. 1L

Re-entered 6 Apr 1968

Nauka 1KS No. 1L (NORAD 3167, COSPAR 1968-022C) was a SU satellite that re-entered Earth's atmosphere on 6 Apr 1968, launched on 21 Mar 1968 on the Zenit-2M mission. It was operated by TSKBE3 as part of the Nauka 1KS programme. The spacecraft was built by TSKBE3 on the Nauka bus, with a mass of 630 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.

1968
launched
1968
re-entered
0
years on orbit
630
kg mass

Lifecycle

Launched21 Mar 1968 · on the Zenit-2M mission
Operational29 Mar 1968 · entered service
Retired29 Mar 1968 · end of operational service
Re-entered6 Apr 1968 · atmospheric re-entry — object destroyed

Specifications

NORAD ID3167
COSPAR1968-022C
TypeSatellite
OperatorTSKBE3
Country / StateSU
ManufacturerTSKBE3
BusNauka
Mass630 kg
ProgrammeNauka 1KS
CategoryAST
OrbitLEO (LLEO/I)
Altitude195 × 263 km
Inclination65.0°

Frequently asked questions

What happened to Nauka 1KS No. 1L?

Nauka 1KS No. 1L re-entered Earth's atmosphere on 6 Apr 1968, ending a mission that began with its launch in 1968. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

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

Nauka 1KS No. 1L re-entered on 6 Apr 1968, according to Orbital Radar's historical catalogue records.

Who operated and built Nauka 1KS No. 1L?

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

Launched together

Zenit-2M No. 1LRe-entered 1968
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.