condition mean min max 4 h after light 443.540716 422.386158 464.695274 8 h after light 619.5074435 447.102108 791.912779 12 h after light 1090.9781125 920.485186 1261.471039 4 h after dark 814.21057 786.269884 842.151256 8 h after dark 1083.5495925 1065.385903 1101.713282 12 h after dark 537.672061 537.672061 537.672061