Did you ever want to know exactly where the sun was in the sky? Or where it was going to be at 2.06 PM?
There is a 'free' software tool for displaying that info on your PC screen..
From
Satellite Tracking System: Orbitron by Sebastian Stoff / Satellite tracking easiest ever!
It's also very nice for tracking the ISS space station and other things near the earth..
Yesterday, I used this tool to find out exactly what time the sun would be at exactly 180 deg from my home.
This allowed me to look at the shadows behind my new PV array, to check alinement, and to know the exact direction of true-south.
This software is used by Hams (and others) to track satellites and control the pointing of their antennas.
I am not sure if it could point an array at the sun.. (Since it's not on the list of satellites)..
I use an optical/sensor type tracker (RedRock), so I don't need that feature.
It's hard to tell where the sun is, on this overcast morning..
But, Obitron knows!
Sun
Azm 112.6°
Elv 23.1°
RA 00h 01m 56s
Decl 0° 14' 56"
Lon 13.0956° W
Lat 0.2217° N
Range (km) 149 014 618