CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0176
SL-12 R/B(AUX MOTOR)
SL-12 R/B(AUX MOTOR) (NORAD 17148) re-entered Earth’s atmosphere on 20 April 1991, after 4 years, 5 months in orbit.
Official date
NORAD number
17148
International designator
1986-090E
Object type
Rocket body
Country
USSR
Launched
18 Nov 1986Baikonur Cosmodrome
Re-entered (UTC)
20 Apr 1991UTC calendar dayAlso recorded as 12 Aug 1988
Time in orbit
4 years, 5 months1,614 days
How it ended
Re-entered (natural decay)
Latitude range
—
Mass
120 kg
Where it came down
Not on recordNo position was recorded for this re-entry. Its final orbit is not on record.
Life in orbit
4 years, 5 monthsSL-12 R/B(AUX MOTOR)’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1986-090
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0176
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0176
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.