CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1990-0262
SL-4 R/B
SL-4 R/B (NORAD 20616) re-entered Earth’s atmosphere on 19 May 1990, after 4 days in orbit.
Official date
NORAD number
20616
International designator
1990-044B
Object type
Rocket body
Country
USSR
Launched
15 May 1990Baikonur Cosmodrome
Re-entered (UTC)
19 May 1990UTC calendar day
Time in orbit
4 days4 days
How it ended
Re-entered (natural decay)
Latitude range
70.0°N to 70.0°SFinal inclination 70.0°
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 70.0°, allowed a re-entry anywhere between 70.0°N and 70.0°S.
Life in orbit
4 daysAlso ended on 19 May 1990
3 entriesFrom the same launch
1990-044
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1990-0262
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1990-0262
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.