Sun angles and angle of incidence

All defaults are invented. Angles are in degrees. Azimuth is a compass bearing: 0 is north, 90 east, 180 south, 270 west. Time is solar time, not clock time.

Part A: from site, day and time

-90 to 90. North is positive.
1 to 365. 21 June is 172, 21 December is 355.
0 to 24, 12 is solar noon. For an hourly value labelled 8 to 9, enter 8.5.
0 (flat) to 90 (vertical).
0 to 360. South is 180.

Part B: from sun angles you already have

0 to 90.
0 to 360 compass bearing.