CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1991-0309
SL-6 R/B(2)
SL-6 R/B(2) (NORAD 9411) re-entered Earth’s atmosphere on 2 August 1991, after 15 years, 4 months in orbit.
Official date
NORAD number
9411
International designator
1976-021D
Object type
Rocket body
Country
USSR
Launched
11 Mar 1976Plesetsk Cosmodrome
Re-entered (UTC)
2 Aug 1991UTC calendar dayAlso recorded as 1 Jul 1991
Time in orbit
15 years, 4 months5,622 days
How it ended
Re-entered (natural decay)
Latitude range
62.9°N to 62.9°SFinal inclination 62.9°
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 62.9°, allowed a re-entry anywhere between 62.9°N and 62.9°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.
From the same launch
1976-021
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1991-0309
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1991-0309
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.