CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1972-0219
SL-4 R/B
SL-4 R/B (NORAD 6091) re-entered Earth’s atmosphere on 10 July 1972, after 4 days in orbit.
Official date
NORAD number
6091
International designator
1972-051B
Object type
Rocket body
Country
USSR
Launched
6 Jul 1972Baikonur Cosmodrome
Re-entered (UTC)
10 Jul 1972UTC calendar day
Time in orbit
4 days4 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
Latitude band its orbit allowedExact position not recorded
No position was recorded for this re-entry. Its final orbit, inclined at 51.7°, allowed a re-entry anywhere between 51.7°N and 51.7°S.
Life in orbit
4 daysAlso ended on 10 Jul 1972
1 entryFrom the same launch
1972-051
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1972-0219
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1972-0219
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.