CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1997-0186
SL-6 R/B(2)
SL-6 R/B(2) (NORAD 11075) re-entered Earth’s atmosphere on 4 July 1997, after 18 years, 10 months in orbit.
Official date
NORAD number
11075
International designator
1978-080D
Object type
Rocket body
Country
USSR
Launched
22 Aug 1978Plesetsk Cosmodrome
Re-entered (UTC)
4 Jul 1997UTC calendar dayAlso recorded as 3 Jul 1997
Time in orbit
18 years, 10 months6,891 days
How it ended
Re-entered (natural decay)
Latitude range
61.8°N to 61.8°SFinal inclination 61.8°
Mass
4,500 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 61.8°, allowed a re-entry anywhere between 61.8°N and 61.8°S.
Life in orbit
18 years, 10 monthsSL-6 R/B(2)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 4 Jul 1997
1 entryFrom the same launch
1978-080
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1997-0186
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1997-0186
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.