Will your target clear the roofline?

Enter the obstruction height, distance from the mount, target declination, and your latitude to estimate the minimum pier height.

Inputs

Obstruction Height (m)

Distance to Obstruction (m)

Target Declination (°)

Latitude (°)

Results

Adjust the inputs to see results.

Obstruction angle = arctan(height / distance). Pier correction adds ~1 cm per degree of latitude above target declination.

All formulas verified by automated tests.