condition mean min max 4 h after light 469.2498485 450.85696 487.642737 8 h after light 595.4083925 508.353959 682.462826 12 h after light 588.325672 511.497186 665.154158 4 h after dark 523.12979 371.526152 674.733428 8 h after dark 482.908141 448.117594 517.698688 12 h after dark 520.355071 520.355071 520.355071