CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2001-0057
SL-6 R/B(2)
SL-6 R/B(2) (NORAD 16125) re-entered Earth’s atmosphere on 19 February 2001, after 15 years, 4 months in orbit.
Official date
NORAD number
16125
International designator
1985-091D
Object type
Rocket body
Country
USSR
Launched
3 Oct 1985Plesetsk Cosmodrome
Re-entered (UTC)
19 Feb 2001UTC calendar dayAlso recorded as 20 Feb 2001
Time in orbit
15 years, 4 months5,618 days
How it ended
Re-entered (natural decay)
Latitude range
61.9°N to 61.9°SFinal inclination 61.9°
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 61.9°, allowed a re-entry anywhere between 61.9°N and 61.9°S.
Life in orbit
15 years, 4 monthsSL-6 R/B(2)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 19 Feb 2001
1 entryFrom the same launch
1985-091
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2001-0057
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2001-0057
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.