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Nauka 16KS No. 2L

Re-entered 9 Apr 1973

Nauka 16KS No. 2L (NORAD 6397, COSPAR 1973-016C) was a SU satellite that re-entered Earth's atmosphere on 9 Apr 1973, launched on 22 Mar 1973 on the Zenit-2M mission. It was operated by TSKBE3 as part of the Nauka 16KS 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.

1973
launched
1973
re-entered
0
years on orbit
630
kg mass

Lifecycle

Launched22 Mar 1973 · on the Zenit-2M mission
Operational26 Mar 1973 · entered service
Retired26 Mar 1973 · end of operational service
Re-entered9 Apr 1973 · atmospheric re-entry — object destroyed

Specifications

NORAD ID6397
COSPAR1973-016C
TypeSatellite
OperatorTSKBE3
Country / StateSU
ManufacturerTSKBE3
BusNauka
Mass630 kg
ProgrammeNauka 16KS
CategoryTECH?
OrbitLEO (LLEO/I)
Altitude192 × 283 km
Inclination72.8°

Frequently asked questions

What happened to Nauka 16KS No. 2L?

Nauka 16KS No. 2L re-entered Earth's atmosphere on 9 Apr 1973, ending a mission that began with its launch in 1973. Objects in low orbits are gradually slowed by atmospheric drag until they fall back and burn up on re-entry.

When did Nauka 16KS No. 2L re-enter the atmosphere?

Nauka 16KS No. 2L re-entered on 9 Apr 1973, according to Orbital Radar's historical catalogue records.

Who operated and built Nauka 16KS No. 2L?

Nauka 16KS No. 2L was operated by TSKBE3 and built by TSKBE3 (SU).

Launched together

Gektor No. 38LRe-entered 1973
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.