Team,
referring to:
http://autoquad.org/wiki/wiki/autoquad- ... culations/
I think I may have discovered a small error...
Is it possible that the Groundcontrol actually operates with degrees and minutes, when using the tool to create the "#define IMU_MAG_INCL" statement?
In the example displayed on the Wiki, there are shown three different numbers shown (for Den Haag Zuit - Hollland):
67deg 6minutes (via http://magnetic-declination.com/)
-67.09 (as shown entry into groundcontrol tool)
-67.15 (in the resulting "#define" statement)
Why are there three numbers? When using the online converter tool (http://www.onlineconversion.com/map_decimaldegrees.htm) 67deg 6min results in 67.1 deg decimal, which is what should be in the "#define" statement, right? When entering 67.06 (as deg.min) into the groundcontrol tool I get exactly 67.1deg decimal. So there may be no need to use the "converter" tool. Just enter deg.min...!?
Could someone please sanity check this!?
The difference is not huge and might correspond to the error when driving to a nearby flying field.