condition mean min max 3 h after light 909.203 774.216 1000.44 6 h after light 854.7313333333333 660.917 1221.57 9 h after light 498.594 303.056 671.285 12 h after light 652.085 295.399 1374.06 3 h after dark 493.00333333333333 434.191 562.339 6 h after dark 898.7873333333333 850.201 923.197 9 h after dark 1201.33 1142.95 1245.58 12 h after dark 1735.9250000000002 1626.92 1844.93