CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1974-0010
SL-6 R/B(2)
SL-6 R/B(2) (NORAD 5689) re-entered Earth’s atmosphere on 5 January 1974, after 2 years, 1 month in orbit.
Official date
NORAD number
5689
International designator
1971-100E
Object type
Rocket body
Country
USSR
Launched
24 Nov 1971Plesetsk Cosmodrome
Re-entered (UTC)
5 Jan 1974UTC calendar day
Time in orbit
2 years, 1 month773 days
How it ended
Re-entered (natural decay)
Latitude range
65.5°N to 65.5°SFinal inclination 65.5°
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 65.5°, allowed a re-entry anywhere between 65.5°N and 65.5°S.
Life in orbit
2 years, 1 monthSL-6 R/B(2)’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1971-100
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1974-0010
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1974-0010
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.