CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1986-0076
SL-4 R/B
SL-4 R/B (NORAD 16590) re-entered Earth’s atmosphere on 9 February 1986, after 2 days in orbit.
Official date
NORAD number
16590
International designator
1986-013B
Object type
Rocket body
Country
USSR
Launched
7 Feb 1986Baikonur Cosmodrome
Re-entered (UTC)
9 Feb 1986UTC calendar day
Time in orbit
2 days2 days
How it ended
Re-entered (natural decay)
Latitude range
64.8°N to 64.8°SFinal inclination 64.8°
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 64.8°, allowed a re-entry anywhere between 64.8°N and 64.8°S.
Life in orbit
2 daysAlso ended on 9 Feb 1986
4 entriesFrom the same launch
1986-013
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1986-0076
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1986-0076
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.