CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1978-0139
Kosmos-913 SS 20
ESO
Kosmos-913 SS 20 (NORAD 10497) re-entered Earth’s atmosphere on 27 March 1978, after 9 months in orbit.
Official dateIdentified from the historical record
NORAD number
10497
International designator
1977-042X
Object type
Spacecraft
Official listing
COSMOS 913 DEBListed as a fragment
Country
USSR
Launched
30 May 1977Plesetsk Cosmodrome
Re-entered (UTC)
27 Mar 1978UTC calendar day
Time in orbit
9 months301 days
How it ended
Re-entered (natural decay)
Latitude range
74.0°N to 74.0°SFinal inclination 74.0°
Mass
5 kg
Operator
PVO
Built by
Southern SDB
Bus
ESO
Programme
ESO
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 74.0°, allowed a re-entry anywhere between 74.0°N and 74.0°S.
Life in orbit
9 monthsKosmos-913 SS 20’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 27 Mar 1978
1 entryFrom the same launch
1977-042
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1978-0139
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1978-0139
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.