condition mean min max 4 h after light 576.812637 562.970712 590.654562 8 h after light 584.4861085 516.69053 652.281687 12 h after light 606.6848024999999 587.155134 626.214471 4 h after dark 495.5767015 426.982601 564.170802 8 h after dark 450.4946765 346.988065 554.001288 12 h after dark 457.66374 457.66374 457.66374