CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1977-0174
SL-4 R/B
SL-4 R/B (NORAD 9909) re-entered Earth’s atmosphere on 9 April 1977, after 2 days in orbit.
Official date
NORAD number
9909
International designator
1977-026B
Object type
Rocket body
Country
USSR
Launched
7 Apr 1977Plesetsk Cosmodrome
Re-entered (UTC)
9 Apr 1977UTC calendar day
Time in orbit
2 days2 days
How it ended
Re-entered (natural decay)
Latitude range
81.4°N to 81.4°SFinal inclination 81.4°
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 81.4°, allowed a re-entry anywhere between 81.4°N and 81.4°S.
Life in orbit
2 daysFrom the same launch
1977-026Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1977-0174
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1977-0174
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.