CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1966-0191
COSMOS 121
COSMOS 121 (NORAD 2210) landed on 25 June 1966, after 8 days in orbit.
Official date
NORAD number
2210
International designator
1966-054A
Object type
Spacecraft
Country
USSR
Launched
17 Jun 1966Plesetsk Cosmodrome
Landed (UTC)
25 Jun 1966UTC calendar day
Time in orbit
8 days8 days
How it ended
Landed
Latitude range
72.8°N to 72.8°SFinal inclination 72.8°
Mass
2,200 kg
Operator
TsUKOS
Built by
OKB-1 Fil. 3
Bus
Zenit-4
Programme
Zenit-4
Where it came down
Latitude band its orbit allowedExact position not recorded
No position was recorded for this re-entry. Its final orbit, inclined at 72.8°, allowed a re-entry anywhere between 72.8°N and 72.8°S.
Life in orbit
8 daysAlso ended on 25 Jun 1966
1 entryFrom the same launch
1966-054Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1966-0191
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1966-0191
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.