CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1973-0412
COSMOS 581
COSMOS 581 (NORAD 6798) landed on 6 September 1973, after 13 days in orbit.
Official date
NORAD number
6798
International designator
1973-059A
Object type
Spacecraft
Country
USSR
Launched
24 Aug 1973Baikonur Cosmodrome
Landed (UTC)
6 Sep 1973UTC calendar day
Time in orbit
13 days13 days
How it ended
Landed
Latitude range
51.6°N to 51.6°SFinal inclination 51.6°
Mass
2,200 kg
Operator
GUKOS RVSN
Built by
TsKBEM Fil. 3
Bus
Zenit-4M
Programme
Zenit-4M
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 51.6°, allowed a re-entry anywhere between 51.6°N and 51.6°S.
Life in orbit
13 daysAlso ended on 6 Sep 1973
3 entriesFrom the same launch
1973-059
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1973-0412
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1973-0412
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.