Instructions: This calculator may be used to determine the total polar alignment error given the errors measured on each axis. The calculator can also be used to calculate any hypotenuse of a right triangle. For more information on the mathematical model behind this calculator see my article on the subject. Azimuth Error: Enter the Azimuth alignment error in arcminutes. If you know the angle in arcminutes and arcseconds enter it as MM.SS and click "Convert MM.SS". Altitude Error: Enter the Altitude alignment error in arcminutes. If you know the angle in arcminutes and arcseconds enter it as MM.SS and click "Convert MM.SS". Calculate: When you have entered and converted all your inputs to the proper units, click "Calculate." The Total Alignment Error will be calculated and displayed in the field below. The Error Angle shows the directional angle of the alignment error.