CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1986-0099
Kosmos-1501 SS 23
ESO
Kosmos-1501 SS 23 (NORAD 15864) re-entered Earth’s atmosphere on 26 February 1986, after 2 years, 4 months in orbit.
Official dateIdentified from the historical record
NORAD number
15864
International designator
1983-101AA
Object type
Spacecraft
Official listing
COSMOS 1501 DEBListed as a fragment
Country
USSR
Launched
30 Sep 1983Plesetsk Cosmodrome
Re-entered (UTC)
26 Feb 1986UTC calendar day
Time in orbit
2 years, 4 months880 days
How it ended
Re-entered (natural decay)
Latitude range
82.9°N to 82.9°SFinal inclination 82.9°
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 82.9°, allowed a re-entry anywhere between 82.9°N and 82.9°S.
Life in orbit
2 years, 4 monthsKosmos-1501 SS 23’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 26 Feb 1986
2 entriesFrom the same launch
1983-1011984-0198Kosmos-1501 SS 11984-0201Kosmos-1501 SS 21984-0389Kosmos-1501 SS 31984-0400Kosmos-1501 SS 41985-0034Kosmos-1501 SS 61985-0048Kosmos-1501 SS 51985-0208Kosmos-1501 SS 121985-0220Kosmos-1501 SS 111985-0342Kosmos-1501 SS 151985-0374Kosmos-1501 SS 201985-0399Kosmos-1501 SS 181985-0437Kosmos-1501 SS 19
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1986-0099
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1986-0099
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.