CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1989-0531
SL-4 R/B
SL-4 R/B (NORAD 20001) re-entered Earth’s atmosphere on 27 May 1989, after 3 days in orbit.
Official date
NORAD number
20001
International designator
1989-037B
Object type
Rocket body
Country
USSR
Launched
24 May 1989Baikonur Cosmodrome
Re-entered (UTC)
27 May 1989UTC calendar day
Time in orbit
3 days3 days
How it ended
Re-entered (natural decay)
Latitude range
69.9°N to 69.9°SFinal inclination 69.9°
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 69.9°, allowed a re-entry anywhere between 69.9°N and 69.9°S.
Life in orbit
3 daysAlso ended on 27 May 1989
2 entriesFrom the same launch
1989-037
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1989-0531
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1989-0531
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.