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8) Adjust both (A) Sector PPI and (B) Sector RHI to complete them.
Notice:
Do not forget to do the [Auto ground clutter mapping] after changed value of the [Origin EL position
offset correction]. (Refer to the “Operator’s manual” for operation)
5.3.6. Conclusion
Calculation of the solar position:
This software uses “Astronomical algorithms” created by Jean Meeus to calculate algorithms of
the solar position.
The accuracy of this algorithm on longitude is +/- 72 degrees of range within 0.0167 degrees.
However accuracy depends on atmospheric temperature, pressure, and humidity. Therefore
under certain circumstances accuracy may be very poor.
Currently the solar azimuth value is properly corrected when refraction of atmospheric
conditions are properly considered.
Reference: U. S. Department of Commerce / National Oceanic & Atmospheric Administration / NOAA
Research / Earth System Research Laboratory (ESRL)