CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1973-0470
SL-4 R/B
SL-4 R/B (NORAD 6863) re-entered Earth’s atmosphere on 21 October 1973, after 11 days in orbit.
Official date
NORAD number
6863
International designator
1973-072B
Object type
Rocket body
Country
USSR
Launched
10 Oct 1973Plesetsk Cosmodrome
Re-entered (UTC)
21 Oct 1973UTC calendar day
Time in orbit
11 days11 days
How it ended
Re-entered (natural decay)
Latitude range
72.8°N to 72.8°SFinal inclination 72.8°
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 72.8°, allowed a re-entry anywhere between 72.8°N and 72.8°S.
Life in orbit
11 daysAlso ended on 21 Oct 1973
2 entriesFrom the same launch
1973-072
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1973-0470
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1973-0470
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.