CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1975-0268
SL-7 R/B
SL-7 R/B (NORAD 7731) re-entered Earth’s atmosphere on 9 September 1975, after 5 months in orbit.
Official date
NORAD number
7731
International designator
1975-026B
Object type
Rocket body
Country
USSR
Launched
8 Apr 1975Plesetsk Cosmodrome
Re-entered (UTC)
9 Sep 1975UTC calendar day
Time in orbit
5 months154 days
How it ended
Re-entered (natural decay)
Latitude range
71.0°N to 71.0°SFinal inclination 71.0°
Mass
840 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 71.0°, allowed a re-entry anywhere between 71.0°N and 71.0°S.
Life in orbit
5 monthsSL-7 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 9 Sep 1975
74 entriesFrom the same launch
1975-026
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1975-0268
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1975-0268
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.