By third number I meant 40 from here :
-161 + 360 + 40 = 239
But thank you for your message, it's really appreciated
Did you mean 40 is the yaw ?
Here I attach two new screenshots with all the info I've been able to grab when having a compass bearing of 120°
viewpos compass 2.jpg
from gsc.png
I really don't see how to obtain 120 using all that :/