Not really. Might be better to use compass degrees, "but" I seemed to have found something with dishpointer and listed skew differences between the World Direct and WD with the 101 LNB.
Sierra Vista AZ is about 110
Phase III Dish Skew [?]: 90.5°
SL5 Dish Skew [?]: 104.7°
95W & 101 Dish Skew [?]: 113.2°
Well .... sorry, did my best to clarify ...
And really don't see how using magnetic coordinates for Az. can help clarify the issue.
Thought the concept was quite simple really. Horiz. polarized linear signals for N-S aligned satellites emanate at the same angle the Clarke belt makes with a receiving earth station viewing it. So naturally a feedhorn on the receiving dish must be oriented the same way.
But anyhow as to those examples, dishpointer appears to be using two different angle conventions.
For the DIRECTV multi-LNB dishes P.III, SL-5, and 95w & 101, "dish skew" which is the same as the dish's "tilt" setting in this case, is measured in a range of 0° to +180° CCW when standing behind the dish.
The single 95w dish listed last is apparently for a round dish with a single LNBF where the skew adjustment is made by rotating only the LNBF (and not the dish) in its mount using the angle convention as described here;
Straight up vertical is 0° with negative angles measured by rotating the LNBF CCW from the 0° reference point when viewed from behind the dish, and positive angles are CW from the point