CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2023-1900
SL-4 R/B
SL-4 R/B (NORAD 55979) re-entered Earth’s atmosphere on 22 November 2023 over Europe, after 7 months in orbit.
Official date
NORAD number
55979
International designator
2023-040B
Object type
Rocket body
Country
Russia
Launched
23 Mar 2023Plesetsk Cosmodrome
Re-entered (UTC)
22 Nov 2023Recorded time 10:21 UTC
Time in orbit
7 months244 days
How it ended
Re-entered (natural decay)
Latitude range
82.4°N to 82.4°SFinal inclination 97.6°
Mass
2,350 kg
Where it came down
Recorded positionRecorded position 69.0°N, 5.0°E at 10:21 UTC. Its final orbit, inclined at 97.6°, allowed a re-entry anywhere between 82.4°N and 82.4°S.
Life in orbit
7 monthsSL-4 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2023-1900
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2023-1900
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.