condition mean min max 2 h after light 597.3713333333334 470.184 678.592 6 h after light 515.9135 435.562 635.607 10 h after light 478.5135 353.26 657.256 14 h after light 486.967 341.224 595.004 18 h after light 572.6041666666667 458.861 668.21 2 h after dark 657.806 480.991 868.289