==== 20180731 22:00:00  -        GOES15       IR  12.76  116.90  30.0  18.07  13.83  115.92  16.98  14.56  116.74  18.08  13.86  115.92  -1.0   -1.0  0.25  0.17  0.47   1.23  10.11 100.0 
 ==== 20180731 22:00:00  *        GOES15   NearIR  12.76  116.90  30.0  11.66  13.81  115.92  13.01  14.56  116.74  11.61  13.81  115.92  -1.0   -1.0  0.20  0.15  0.43   1.33  11.15 100.0 
 ==== 20180731 22:00:00  -        GOES15      Vis  12.76  116.90  30.0   7.83  12.56  116.98   7.18  12.56  115.26   7.82  12.58  116.95  -1.0   -1.0  0.25  0.33  0.95   0.40   5.02  49.7