CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Orbital Register seal
Entry no.
1990-0550

SL-12 R/B(AUX MOTOR)

SL-12 R/B(AUX MOTOR) (NORAD 20371) re-entered Earth’s atmosphere on 24 December 1990, after 1 year in orbit.

Official date
NORAD number
20371
International designator
1989-098E
Object type
Rocket body
Country
USSR
Launched
15 Dec 1989Baikonur Cosmodrome
Re-entered (UTC)
24 Dec 1990UTC calendar dayAlso recorded as 4 Sep 1991
Time in orbit
1 year374 days
How it ended
Re-entered (natural decay)
Latitude range
—
Mass
120 kg

Where it came down

Not on record

No position was recorded for this re-entry. Its final orbit is not on record.

Life in orbit

1 year

SL-12 R/B(AUX MOTOR)’s lowest and highest points above Earth, week by week, from its tracking history.

Also ended on 24 Dec 1990

1 entry
1990-0551SL-4 R/B

From the same launch

1989-098
1989-1033SL-12 R/B(1)1990-0278SL-12 R/B(AUX MOTOR)
Orbital Register seal
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1990-0550
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.