condition mean min max 3 h after light 1270.1666666666667 1057.47 1578.62 6 h after light 956.087 610.995 1566.95 9 h after light 604.6176666666667 378.505 752.038 12 h after light 627.07125 542.535 717.447 3 h after dark 1215.95 1112.3 1292.81 6 h after dark 1704.9433333333334 1412.67 2050.83 9 h after dark 1944.2399999999998 1561.55 2157.7 12 h after dark 1107.305 1038.15 1176.46