CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1986-0376
SL-4 R/B
SL-4 R/B (NORAD 16927) re-entered Earth’s atmosphere on 25 September 1986, after 22 days in orbit.
Official date
NORAD number
16927
International designator
1986-066B
Object type
Rocket body
Country
USSR
Launched
3 Sep 1986Baikonur Cosmodrome
Re-entered (UTC)
25 Sep 1986UTC calendar day
Time in orbit
22 days22 days
How it ended
Re-entered (natural decay)
Latitude range
70.3°N to 70.3°SFinal inclination 70.3°
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 70.3°, allowed a re-entry anywhere between 70.3°N and 70.3°S.
Life in orbit
22 daysSL-4 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 25 Sep 1986
1 entryFrom the same launch
1986-066
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1986-0376
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1986-0376
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.