CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0402
SL-12 R/B(AUX MOTOR)
SL-12 R/B(AUX MOTOR) (NORAD 12137) re-entered Earth’s atmosphere on 15 August 1981, after 7 months in orbit.
Official date
NORAD number
12137
International designator
1980-104D
Object type
Rocket body
Country
USSR
Launched
26 Dec 1980Baikonur Cosmodrome
Re-entered (UTC)
15 Aug 1981UTC calendar dayAlso recorded as 20 Apr 1982
Time in orbit
7 months232 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
7 monthsSL-12 R/B(AUX MOTOR)’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1980-104
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0402
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0402
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.