condition mean min max 4 h after light 657.9345275000001 637.070948 678.798107 8 h after light 507.8976665 480.413097 535.382236 12 h after light 483.839953 423.385903 544.294003 4 h after dark 531.76788 498.609942 564.925818 8 h after dark 537.2072775 496.924364 577.490191 12 h after dark 686.010701 686.010701 686.010701