CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1975-0093
COSMOS 721
COSMOS 721 (NORAD 7705) landed on 7 April 1975, after 12 days in orbit.
Official date
NORAD number
7705
International designator
1975-020A
Object type
Spacecraft
Country
USSR
Launched
26 Mar 1975Plesetsk Cosmodrome
Landed (UTC)
7 Apr 1975UTC calendar day
Time in orbit
12 days12 days
How it ended
Landed
Latitude range
81.3°N to 81.3°SFinal inclination 81.3°
Mass
2,200 kg
Operator
GUKOS RVSN
Built by
TsSKB
Bus
Zenit-2M
Programme
Zenit-2M
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 81.3°, allowed a re-entry anywhere between 81.3°N and 81.3°S.
Life in orbit
12 daysAlso ended on 7 Apr 1975
1 entryFrom the same launch
1975-020Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1975-0093
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1975-0093
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.