DJI Mini 2 (2021 Kirkland)

Flight telemetry summary

Distance Meters

636.4 m

Maximum Altitude AGL

117.7 m

Maximum Ground Speed

8.1 m/s

Minimum Battery Percent

9%

Minimum Battery Voltage

7.19 V

Minimum GPS Satellites

11

Maximum GPS HDOP

1

Flight Modes

ENGINE_START, ASSISTED_TAKEOFF, GPS_ATTI, CONFIRM_LANDING, GPS_ATTI

Maximum Distance From Home Meters

295.9 m

Maximum Distance From Home Time

13m 40s

Average Ground Speed

6.29 m/s

Maximum Climb Rate MPS

3 m/s

Maximum Descent Rate MPS

-3.2 m/s

Battery Consumed MAH

1791 mAh

Battery Consumed Wh

12.93 Wh

Voltage Sag

1.35 V

Flight Mode Seconds

ENGINE_START: 1s, ASSISTED_TAKEOFF: 7s, GPS_ATTI: 20m 43s, CONFIRM_LANDING: 3s

Compass Healthy

No

Weather at the flight

Source

open-meteo-archive

Sampled At Utc

2021-09-06T02:00Z

Latitude

47.57

Longitude

-122.63

Temperature C

19.3 °C

Wind Speed MPS

1.71 m/s

Wind Direction Degrees

21

Wind Direction Cardinal

NNE

Weather Code

2

Weather Description

Partly cloudy

AI flight report

This flight (dji-mini-2-2021-kirkland-047b60) started at 2021-09-06T02:23:47Z and lasted 20 minutes 54 seconds. The aircraft was a DJI Mini 2 and flew a total track distance of 636 m, reaching a maximum distance from home of 296 m (at 13:40). The vehicle climbed to a maximum altitude of 118 m above home (recorded at 9:15) and spent most of the flight in GPS-assisted attitude mode (GPS_ATTI) after an assisted takeoff. Average moving speed was 6.3 m/s with a recorded top ground speed of 8.1 m/s (13:07). Weather during the flight was mild: 19.3°C with a light NNE wind of 1.71 m/s.

Battery usage and warnings were the most notable operational events. The battery delivered 1,791 mAh (12.9 Wh) during the flight and the report shows a voltage sag of 1.35 V; the lowest reported voltage was 7.19 V and the minimum state of charge reached 9%. Warnings began at 16:06 (BATTERY_LOW, below 30%) and escalated to BATTERY_CRITICAL at 19:33 (below 15%), after which the flight was transitioned to confirm-landing and the vehicle was disarmed at 20:54. A COMPASS_UNHEALTHY warning occurred at 18:46; GPS reception otherwise was strong (minimum 11 satellites, HDOP max 1.00).

For follow-up, plan to keep a larger battery reserve margin so you don’t reach the critical threshold in future flights — consider beginning return or landing procedures earlier (for example when battery hits 30% or at a pre-calculated remaining flight time) and verify your in-field battery capacity against expected flight time. Also investigate the compass warning: although the flight continued with good GPS, a COMPASS_UNHEALTHY alert can be caused by nearby magnetic interference or a sensor fault; I recommend checking for ferrous objects or electronics near the launch area and performing a compass calibration and inspection before the next flight.

Detected flight events

1. 0s — Flight mode changed to ENGINE_START

   Engines powered on at 00:00 to initialize systems and motors, preparing the aircraft for takeoff and flight checks.

2. 1s — Flight mode changed to ASSISTED_TAKEOFF

   Assisted takeoff at 00:01 engaged the autopilot for a controlled vertical ascent during initial climb.

3. 8s — Flight mode changed to GPS_ATTI

   Switched to GPS_ATTI at 00:08 — GPS-based attitude/position stabilization engaged for hover and navigation.

4. 11s — Takeoff (altitude threshold)

   Takeoff threshold crossed at 00:11; aircraft airborne (telemetry 9.8 m at 00:15), beginning the mission profile.

5. 9m 15s — Maximum altitude: 118 m above home

   Reached maximum altitude 118 m above home at 09:15 — the highest survey/photo point and higher energy draw.

6. 13m 7s — Maximum ground speed: 8.1 m/s

   Maximum ground speed 8.1 m/s recorded at 13:07 — peak horizontal speed, which increases power consumption.

7. 16m 6s — Battery below 30%

   Battery low warning at 16:06 (around 30% SOC, ~7.3 V); pilot should monitor remaining endurance and plan return.

8. 18m 46s — Compass reported unhealthy

   Compass reported unhealthy at 18:46; GPS satellite count stayed high (>20), but compass faults can impair heading/automated navigation (likely transient).

9. 19m 33s — Battery below 15%

   Battery critical at 19:33 (below 15%); this forces urgent return/landing — recorded min voltage later 7.19 V and min battery 9%.

10. 20m 51s — Flight mode changed to CONFIRM_LANDING

    Mode changed to CONFIRM_LANDING at 20:51 — landing sequence confirmed, pilot committed to touch down.

11. 20m 54s — Vehicle disarmed

    Vehicle disarmed at 20:54 — motors stopped and flight ended; total track distance was 636 m over the 20:54 flight.

12. 20m 54s — Flight mode changed to GPS_ATTI

    Mode read GPS_ATTI at 20:54 after disarm; likely a post-flight telemetry/state update rather than an active flight control mode.