CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1975-0477
SL-12 R/B(1)
SL-12 R/B(1) (NORAD 8515) re-entered Earth’s atmosphere on 25 December 1975, after 3 days in orbit.
Official date
NORAD number
8515
International designator
1975-123C
Object type
Rocket body
Country
USSR
Launched
22 Dec 1975Baikonur Cosmodrome
Re-entered (UTC)
25 Dec 1975UTC calendar day
Time in orbit
3 days3 days
How it ended
Re-entered (natural decay)
Latitude range
51.5°N to 51.5°SFinal inclination 51.5°
Mass
4,185 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 51.5°, allowed a re-entry anywhere between 51.5°N and 51.5°S.
Life in orbit
3 daysFrom the same launch
1975-123
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1975-0477
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1975-0477
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.