condition mean min max 4 h after light 820.6 820.6 820.6 8 h after light 881.9000000000001 852.6 911.2 12 h after light 872.05 819.9 924.2 4 h after dark 1127.1 954.9 1299.3 8 h after dark 1089.95 1020.9 1159.0 12 h after dark 1022.0999999999999 983.6 1060.6