CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2023-1978
FLOCK 4S 23
FLOCK 4S 23 (NORAD 47545) re-entered Earth’s atmosphere on 7 December 2023, after 2 years, 10 months in orbit.
Official date
NORAD number
47545
International designator
2021-006EF
Object type
Spacecraft
Country
United States
Launched
24 Jan 2021Cape Canaveral
Re-entered (UTC)
7 Dec 2023UTC calendar day
Time in orbit
2 years, 10 months1,047 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
2 years, 10 monthsFLOCK 4S 23’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 7 Dec 2023
10 entriesFrom the same launch
2021-006
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2023-1978
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2023-1978
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.