CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1990-0472
SL-4 R/B
SL-4 R/B (NORAD 20910) re-entered Earth’s atmosphere on 20 October 1990, after 4 days in orbit.
Official date
NORAD number
20910
International designator
1990-092B
Object type
Rocket body
Country
USSR
Launched
16 Oct 1990Plesetsk Cosmodrome
Re-entered (UTC)
20 Oct 1990UTC calendar day
Time in orbit
4 days4 days
How it ended
Re-entered (natural decay)
Latitude range
62.8°N to 62.8°SFinal inclination 62.8°
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 62.8°, allowed a re-entry anywhere between 62.8°N and 62.8°S.
Life in orbit
4 daysAlso ended on 20 Oct 1990
2 entriesFrom the same launch
1990-092
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1990-0472
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1990-0472
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.