condition mean min max 4 h after light 508.262 387.47 589.983 8 h after light 226.9116 97.5208 345.268 12 h after light 127.80776666666667 72.5603 209.876 4 h after dark 95.31276666666666 75.9583 106.954 8 h after dark 84.6471 54.0955 114.221 12 h after dark 336.04833333333335 320.602 344.938