CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2025-1803
SL-4 R/B
SL-4 R/B (NORAD 66665) re-entered Earth’s atmosphere on 29 November 2025 over the North Atlantic Ocean, after 2 days in orbit.
Official date
NORAD number
66665
International designator
2025-275B
Object type
Rocket body
Country
Russia
Launched
27 Nov 2025Baikonur Cosmodrome
Re-entered (UTC)
29 Nov 2025Recorded time 14:25 UTC
Time in orbit
2 days2 days
How it ended
Re-entered (natural decay)
Latitude range
51.7°N to 51.7°SFinal inclination 51.7°
Mass
2,350 kg
Where it came down
Recorded positionRecorded position 48.0°N, 19.0°W at 14:25 UTC. Its final orbit, inclined at 51.7°, allowed a re-entry anywhere between 51.7°N and 51.7°S.
Life in orbit
2 daysAlso ended on 29 Nov 2025
2 entriesFrom the same launch
2025-275
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2025-1803
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2025-1803
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.