CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2024-0799
SL-6 R/B(2)
SL-6 R/B(2) (NORAD 10998) re-entered Earth’s atmosphere on 4 June 2024 over Asia, after 45 years, 11 months in orbit.
Official date
NORAD number
10998
International designator
1978-066D
Object type
Rocket body
Country
USSR
Launched
28 Jun 1978Plesetsk Cosmodrome
Re-entered (UTC)
4 Jun 2024Recorded time 09:54 UTC
Time in orbit
45 years, 11 months16,778 days
How it ended
Re-entered (natural decay)
Latitude range
61.9°N to 61.9°SFinal inclination 61.9°
Mass
4,500 kg
Where it came down
Recorded positionRecorded position 56.0°N, 47.0°E at 09:54 UTC. Its final orbit, inclined at 61.9°, allowed a re-entry anywhere between 61.9°N and 61.9°S.
Life in orbit
45 years, 11 monthsSL-6 R/B(2)’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 4 Jun 2024
6 entriesFrom the same launch
1978-066Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2024-0799
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2024-0799
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.