CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2010-0362
SL-6 R/B(2)
SL-6 R/B(2) (NORAD 21709) re-entered Earth’s atmosphere on 6 December 2010, after 19 years, 2 months in orbit.
Official date
NORAD number
21709
International designator
1991-065D
Object type
Rocket body
Country
USSR
Launched
17 Sep 1991Plesetsk Cosmodrome
Re-entered (UTC)
6 Dec 2010UTC calendar day
Time in orbit
19 years, 2 months7,020 days
How it ended
Re-entered (natural decay)
Latitude range
62.2°N to 62.2°SFinal inclination 62.2°
Mass
4,500 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 62.2°, allowed a re-entry anywhere between 62.2°N and 62.2°S.
Life in orbit
19 years, 2 monthsSL-6 R/B(2)’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1991-065
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2010-0362
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2010-0362
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.