CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1979-0433
SL-8 R/B
SL-8 R/B (NORAD 10377) re-entered Earth’s atmosphere on 11 September 1979, after 1 year, 11 months in orbit.
Official date
NORAD number
10377
International designator
1977-096B
Object type
Rocket body
Country
USSR
Launched
24 Sep 1977Plesetsk Cosmodrome
Re-entered (UTC)
11 Sep 1979UTC calendar day
Time in orbit
1 year, 11 months717 days
How it ended
Re-entered (natural decay)
Latitude range
82.9°N to 82.9°SFinal inclination 82.9°
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 82.9°, allowed a re-entry anywhere between 82.9°N and 82.9°S.
Life in orbit
1 year, 11 monthsSL-8 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 11 Sep 1979
3 entriesFrom the same launch
1977-096
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1979-0433
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1979-0433
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.