CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1978-0238
SL-4 R/B
SL-4 R/B (NORAD 10920) re-entered Earth’s atmosphere on 28 May 1978, after 3 days in orbit.
Official date
NORAD number
10920
International designator
1978-054B
Object type
Rocket body
Country
USSR
Launched
25 May 1978Plesetsk Cosmodrome
Re-entered (UTC)
28 May 1978UTC calendar day
Time in orbit
3 days3 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
3 daysFrom the same launch
1978-054
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1978-0238
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1978-0238
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.