CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1983-0067
Kosmos-1311 SS 18
ESO
Kosmos-1311 SS 18 (NORAD 13821) re-entered Earth’s atmosphere on 28 February 1983, after 1 year, 5 months in orbit.
Official dateIdentified from the historical record
NORAD number
13821
International designator
1981-097V
Object type
Spacecraft
Official listing
COSMOS 1311 DEBListed as a fragment
Country
USSR
Launched
28 Sep 1981Plesetsk Cosmodrome
Re-entered (UTC)
28 Feb 1983UTC calendar day
Time in orbit
1 year, 5 months518 days
How it ended
Re-entered (natural decay)
Latitude range
83.0°N to 83.0°SFinal inclination 83.0°
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 83.0°, allowed a re-entry anywhere between 83.0°N and 83.0°S.
Life in orbit
1 year, 5 monthsAlso ended on 28 Feb 1983
8 entriesFrom the same launch
1981-0971982-0060Kosmos-1311 SS 21982-0063Kosmos-1311 SS 11982-0518Kosmos-1311 SS 31982-0519Kosmos-1311 SS 41982-0537Kosmos-1311 SS 61982-0538Kosmos-1311 SS 131982-0540Kosmos-1311 SS 51982-0541Kosmos-1311 SS 111982-0542Kosmos-1311 SS 121982-0544Kosmos-1311 SS 101982-0550Kosmos-1311 SS 71982-0553Kosmos-1311 SS 8
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1983-0067
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1983-0067
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.