CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1971-0208
SL-6 R/B(1)
SL-6 R/B(1) (NORAD 5353) re-entered Earth’s atmosphere on 29 August 1971, after 1 month in orbit.
Official date
NORAD number
5353
International designator
1971-064B
Object type
Rocket body
Country
USSR
Launched
28 Jul 1971Plesetsk Cosmodrome
Re-entered (UTC)
29 Aug 1971UTC calendar day
Time in orbit
1 month32 days
How it ended
Re-entered (natural decay)
Latitude range
65.4°N to 65.4°SFinal inclination 65.4°
Mass
2,350 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 65.4°, allowed a re-entry anywhere between 65.4°N and 65.4°S.
Life in orbit
1 monthSL-6 R/B(1)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 29 Aug 1971
1 entryFrom the same launch
1971-064
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1971-0208
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1971-0208
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.