CERTIFICATE OF RE-ENTRYOrbital Register™ · by Orbital Radar™
Entry no.
2023-0838
FLOCK 4A 18
FLOCK 4A 18 (NORAD 44089) re-entered Earth’s atmosphere on 15 April 2023, after 4 years in orbit.
Official date
NORAD number
44089
International designator
2019-018M
Object type
Spacecraft
Country
United States
Launched
1 Apr 2019Sriharikota
Re-entered (UTC)
15 Apr 2023UTC calendar day
Time in orbit
4 years1,475 days
How it ended
Re-entered (natural decay)
Latitude range
82.8°N to 82.8°SFinal inclination 97.2°
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 97.2°, allowed a re-entry anywhere between 82.8°N and 82.8°S.
Life in orbit
4 yearsFLOCK 4A 18’s lowest and highest points above Earth, week by week, from its tracking history.
Also ended on 15 Apr 2023
12 entriesFrom the same launch
2019-018
Entered in the Orbital Register™, founding volume, September 2026.
Record version 1 · No corrections · orbitalradar.com/register/2023-0838
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.
Record version 1 · No corrections · orbitalradar.com/register/2023-0838
© 2026 Orbital Radar. Cite this entry by its number; the register itself may not be copied.