CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1985-0056
SL-4 R/B
SL-4 R/B (NORAD 15583) re-entered Earth’s atmosphere on 5 March 1985, after 6 days in orbit.
Official date
NORAD number
15583
International designator
1985-017B
Object type
Rocket body
Country
USSR
Launched
27 Feb 1985Baikonur Cosmodrome
Re-entered (UTC)
5 Mar 1985UTC calendar day
Time in orbit
6 days6 days
How it ended
Re-entered (natural decay)
Latitude range
64.9°N to 64.9°SFinal inclination 64.9°
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 64.9°, allowed a re-entry anywhere between 64.9°N and 64.9°S.
Life in orbit
6 daysAlso ended on 5 Mar 1985
1 entryFrom the same launch
1985-017
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1985-0056
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1985-0056
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.