CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1969-0061
COSMOS 266
COSMOS 266 (NORAD 3761) landed on 5 March 1969, after 8 days in orbit.
Official date
NORAD number
3761
International designator
1969-015A
Object type
Spacecraft
Country
USSR
Launched
25 Feb 1969Plesetsk Cosmodrome
Landed (UTC)
5 Mar 1969Recorded time 05:45 UTC
Time in orbit
8 days8 days
How it ended
Landed
Latitude range
72.9°N to 72.9°SFinal inclination 72.9°
Mass
2,100 kg
Operator
TsUKOS
Built by
TsKBEM Fil. 3
Bus
Zenit-2
Programme
Zenit-2 B
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 72.9°, allowed a re-entry anywhere between 72.9°N and 72.9°S.
Life in orbit
8 daysAlso ended on 5 Mar 1969
2 entriesFrom the same launch
1969-015
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1969-0061
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1969-0061
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.