condition mean min max 4 h after light 603.904886 480.376433 727.433339 8 h after light 551.395959 511.640267 591.151651 12 h after light 594.7884315 467.732654 721.844209 4 h after dark 853.2908825 588.073861 1118.507904 8 h after dark 844.1805225 602.422048 1085.938997 12 h after dark 611.616672 611.616672 611.616672