condition mean min max 4 h after light 882.2 882.2 882.2 8 h after light 887.75 825.3 950.2 12 h after light 826.4 816.0 836.8 4 h after dark 1041.7 824.7 1258.7 8 h after dark 1307.7 1223.0 1392.4 12 h after dark 1135.5500000000002 1121.9 1149.2