CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
1977-0311
SL-13 R/B
SL-13 R/B (NORAD 10147) re-entered Earth’s atmosphere on 29 July 1977, after 12 days in orbit.
Official date
NORAD number
10147
International designator
1977-066B
Object type
Rocket body
Country
USSR
Launched
17 Jul 1977Baikonur Cosmodrome
Re-entered (UTC)
29 Jul 1977UTC calendar day
Time in orbit
12 days12 days
How it ended
Re-entered (natural decay)
Latitude range
51.6°N to 51.6°SFinal inclination 51.6°
Mass
4,185 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 51.6°, allowed a re-entry anywhere between 51.6°N and 51.6°S.
Life in orbit
12 daysFrom the same launch
1977-066
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/1977-0311
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/1977-0311
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.