CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0360
SL-4 R/B
SL-4 R/B (NORAD 12589) re-entered Earth’s atmosphere on 19 July 1981, after 4 days in orbit.
Official date
NORAD number
12589
International designator
1981-066B
Object type
Rocket body
Country
USSR
Launched
15 Jul 1981Baikonur Cosmodrome
Re-entered (UTC)
19 Jul 1981UTC calendar day
Time in orbit
4 days4 days
How it ended
Re-entered (natural decay)
Latitude range
64.9°N to 64.9°SFinal inclination 64.9°
Mass
2,350 kg
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
4 daysAlso ended on 19 Jul 1981
3 entriesFrom the same launch
1981-066
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0360
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0360
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.