CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1979-0185
SL-8 R/B
SL-8 R/B (NORAD 5644) re-entered Earth’s atmosphere on 29 April 1979, after 7 years, 4 months in orbit.
Official date
NORAD number
5644
International designator
1971-105B
Object type
Rocket body
Country
USSR
Launched
2 Dec 1971Plesetsk Cosmodrome
Re-entered (UTC)
29 Apr 1979UTC calendar day
Time in orbit
7 years, 4 months2,705 days
How it ended
Re-entered (natural decay)
Latitude range
69.2°N to 69.2°SFinal inclination 69.2°
Mass
1,434 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 69.2°, allowed a re-entry anywhere between 69.2°N and 69.2°S.
Life in orbit
7 years, 4 monthsSL-8 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
From the same launch
1971-105
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1979-0185
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1979-0185
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.