condition mean min max 2 h after light 744.402 728.361 756.111 6 h after light 790.161 754.977 840.991 10 h after light 870.311 861.515 875.538 2 h after dark 851.0503333333334 806.753 881.341 6 h after dark 757.6796666666667 726.439 781.68 10 h after dark 668.242 655.257 679.065