CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2019-0270
SL-6 R/B(2)
SL-6 R/B(2) (NORAD 9927) re-entered Earth’s atmosphere on 15 October 2019 over the North Atlantic Ocean, after 42 years, 6 months in orbit.
Official date
NORAD number
9927
International designator
1977-021D
Object type
Rocket body
Country
USSR
Launched
24 Mar 1977Plesetsk Cosmodrome
Re-entered (UTC)
15 Oct 2019Recorded time 15:57 UTC
Time in orbit
42 years, 6 months15,545 days
How it ended
Re-entered (natural decay)
Latitude range
61.5°N to 61.5°SFinal inclination 61.5°
Mass
4,500 kg
Where it came down
Recorded positionRecorded position 50.0°N, 35.0°W at 15:57 UTC. Its final orbit, inclined at 61.5°, allowed a re-entry anywhere between 61.5°N and 61.5°S.
Life in orbit
42 years, 6 monthsSL-6 R/B(2)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 15 Oct 2019
2 entriesFrom the same launch
1977-021
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2019-0270
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2019-0270
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.