The load deadline passed: what was not loaded is flagged, not guessed.
Degrees; a lower bound where the sun is hidden, -90 for none.
Zoom range of the elevation tiles the answers used, -1 when none.
Metres to the first ground that hid the sun's centre, -1 for none.
Bit set of SunExposureStatus.
Share of the sun's disc the terrain leaves visible: 0 hidden to 1 lit, -1 unknown (NO_DEM).
Some point was lit with a low sun and a march cut at maxDistance.
The result of
MassifLayer.sunExposure, one entry per input position in each array.