CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1981-0165
SL-6 R/B(1)
SL-6 R/B(1) (NORAD 12369) re-entered Earth’s atmosphere on 13 April 1981, after 20 days in orbit.
Official date
NORAD number
12369
International designator
1981-030B
Object type
Rocket body
Country
USSR
Launched
24 Mar 1981Plesetsk Cosmodrome
Re-entered (UTC)
13 Apr 1981UTC calendar day
Time in orbit
20 days20 days
How it ended
Re-entered (natural decay)
Latitude range
62.8°N to 62.8°SFinal inclination 62.8°
Mass
2,700 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 62.8°, allowed a re-entry anywhere between 62.8°N and 62.8°S.
Life in orbit
20 daysSL-6 R/B(1)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 13 Apr 1981
28 entries1981-0162Kosmos-1204 SS 111981-0166SL-4 R/B1981-0138OPS 8464 DEB *1981-0139TITAN 3C TRANSTAGE DEB1981-0140TITAN 3C TRANSTAGE DEB1981-0141TITAN 3C TRANSTAGE DEB1981-0142COSMOS 249 DEB1981-0143COSMOS 252 DEB *1981-0144SL-8 DEB1981-0145THORAD AGENA D DEB1981-0146SCOUT B DEB1981-0147THORAD AGENA D DEB+16 more
From the same launch
1981-030
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1981-0165
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1981-0165
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.