condition mean min max 4 h after light 884.717 793.2104 1007.952 8 h after light 784.6816 666.086 849.061 12 h after light 278.3333 258.7741 291.3907 16 h after light 533.5024 448.9213 608.1019 4 h after dark 1014.9905666666667 991.5187 1037.978 8 h after dark 781.9184333333333 501.96 990.3451