Skycatch Flight App Standard Ground Sampling Distance
The table below shows the GSD per altitude and expected X, Y, and Z accuracy.
| Resolution (GSD) | X, Y-accuracy | Z-accuracy | Altitude |
| 1 | Approx. 3 cm | Approx. 5 cm | 80m |
| 2 | Approx. 6 cm | Approx. 10 cm | 160m |
| 3 | Approx. 9 cm | Approx. 15 cm | 240m |
| 4 | Approx. 12 cm | Approx. 20 cm | 320m |
| 5 | Approx. 15 cm | Approx. 25 cm | 400m |
Key Points:
- The expected accuracy for the X & Y coordinates is 3x GSD horizontally.
- The expected accuracy for the Z coordinate is 5x GSD vertically.
- The rule of thumb for transferring from GSD to Z accuracy is multiplying the GSD value by 5.
Comments