CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1990-0142
SL-12 R/B(AUX MOTOR)
SL-12 R/B(AUX MOTOR) (NORAD 16789) re-entered Earth’s atmosphere on 7 March 1990, after 3 years, 8 months in orbit.
Official date
NORAD number
16789
International designator
1986-044D
Object type
Rocket body
Country
USSR
Launched
10 Jun 1986Baikonur Cosmodrome
Re-entered (UTC)
7 Mar 1990UTC calendar day
Time in orbit
3 years, 8 months1,366 days
How it ended
Re-entered (natural decay)
Latitude range
46.9°N to 46.9°SFinal inclination 46.9°
Mass
120 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 46.9°, allowed a re-entry anywhere between 46.9°N and 46.9°S.
Life in orbit
3 years, 8 monthsSL-12 R/B(AUX MOTOR)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 7 Mar 1990
1 entryFrom the same launch
1986-044
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1990-0142
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1990-0142
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.