CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1963-0070
COSMOS 20
COSMOS 20 (NORAD 673) landed on 26 October 1963, after 8 days in orbit.
Official date
NORAD number
673
International designator
1963-040A
Object type
Spacecraft
Country
USSR
Launched
18 Oct 1963Baikonur Cosmodrome
Landed (UTC)
26 Oct 1963UTC calendar day
Time in orbit
8 days8 days
How it ended
Landed
Latitude range
64.9°N to 64.9°SFinal inclination 64.9°
Mass
2,100 kg
Operator
OKB-1
Built by
OKB-1
Bus
Zenit-2
Programme
Zenit-2 LKI
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 64.9°, allowed a re-entry anywhere between 64.9°N and 64.9°S.
Life in orbit
8 daysFrom the same launch
1963-040Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1963-0070
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1963-0070
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.