CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2021-0457
SL-4 R/B
SL-4 R/B (NORAD 49128) re-entered Earth’s atmosphere on 11 December 2021 over the Indian Ocean, after 3 months in orbit.
Official date
NORAD number
49128
International designator
2021-081B
Object type
Rocket body
Country
Russia
Launched
9 Sep 2021Plesetsk Cosmodrome
Re-entered (UTC)
11 Dec 2021Recorded time 03:49 UTC
Time in orbit
3 months93 days
How it ended
Re-entered (natural decay)
Latitude range
83.7°N to 83.7°SFinal inclination 96.3°
Mass
2,350 kg
Where it came down
Recorded positionRecorded position 26.0°S, 109.0°E at 03:49 UTC. Its final orbit, inclined at 96.3°, allowed a re-entry anywhere between 83.7°N and 83.7°S.
Life in orbit
3 monthsSL-4 R/B’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 11 Dec 2021
2 entriesFrom the same launch
2021-081
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2021-0457
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2021-0457
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.