CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1990-0442
SL-12 R/B(AUX MOTOR)
SL-12 R/B(AUX MOTOR) (NORAD 20271) re-entered Earth’s atmosphere on 28 September 1990, after 1 year in orbit.
Official date
NORAD number
20271
International designator
1989-081F
Object type
Rocket body
Country
USSR
Launched
28 Sep 1989Baikonur Cosmodrome
Re-entered (UTC)
28 Sep 1990UTC calendar dayAlso recorded as 28 Sep 1991
Time in orbit
1 year365 days
How it ended
Re-entered (natural decay)
Latitude range
46.7°N to 46.7°SFinal inclination 46.7°
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 46.7°, allowed a re-entry anywhere between 46.7°N and 46.7°S.
Life in orbit
1 yearSL-12 R/B(AUX MOTOR)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 28 Sep 1990
2 entriesFrom the same launch
1989-081Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1990-0442
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1990-0442
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.