condition mean min max 4 h after light 1549.2 1549.2 1549.2 8 h after light 1466.0 1358.6 1573.4 12 h after light 1192.1 1024.3 1359.9 4 h after dark 1149.1999999999998 844.3 1454.1 8 h after dark 1408.65 1221.5 1595.8 12 h after dark 1620.4499999999998 1367.8 1873.1