CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
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Entry no.
1998-0279

SL-12 R/B(AUX MOTOR)

SL-12 R/B(AUX MOTOR) (NORAD 20957) re-entered Earth’s atmosphere on 27 September 1998, after 7 years, 10 months in orbit.

Official date
NORAD number
20957
International designator
1990-102E
Object type
Rocket body
Country
USSR
Launched
23 Nov 1990Baikonur Cosmodrome
Re-entered (UTC)
27 Sep 1998UTC calendar dayAlso recorded as 1 Jul 1991
Time in orbit
7 years, 10 months2,865 days
How it ended
Re-entered (natural decay)
Latitude range
46.3°N to 46.3°SFinal inclination 46.3°
Mass
120 kg

Where it came down

Latitude band its orbit allowed
Exact position not recorded

No position was recorded for this re-entry. Its final orbit, inclined at 46.3°, allowed a re-entry anywhere between 46.3°N and 46.3°S.

Life in orbit

7 years, 10 months

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

Also ended on 27 Sep 1998

1 entry
1998-0280ATLAS 2A CENTAUR R/B

From the same launch

1990-102
1990-0509SL-12 R/B(1)1991-0254SL-12 R/B(AUX MOTOR)
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Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1998-0279
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