CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2024-0587
FLOCK 4S 31
FLOCK 4S 31 (NORAD 47475) re-entered Earth’s atmosphere on 29 April 2024, after 3 years, 3 months in orbit.
Official date
NORAD number
47475
International designator
2021-006BQ
Object type
Spacecraft
Country
United States
Launched
24 Jan 2021Cape Canaveral
Re-entered (UTC)
29 Apr 2024UTC calendar dayAlso recorded as 22 Apr 2024
Time in orbit
3 years, 3 months1,191 days
How it ended
Re-entered (natural decay)
Latitude range
82.7°N to 82.7°SFinal inclination 97.3°
Mass
6 kg
Operator
Built by
Planet Labs
Bus
Cubesat 3U
Programme
Flock-4
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 97.3°, allowed a re-entry anywhere between 82.7°N and 82.7°S.
Life in orbit
3 years, 3 monthsFLOCK 4S 31’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 29 Apr 2024
17 entriesFrom the same launch
2021-006
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2024-0587
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2024-0587
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.