==== 20210731 12:20:32  *        GOES17       IR  13.41  116.30  45.0   7.05  14.16  116.27  16.21  15.36  116.89   7.88  13.63  116.35  -1.0   -1.0  0.05  0.32  0.91   0.73   5.20  98.9 
 ==== 20210731 23:58:56  -        SSMI15 85-92GHz  13.50  118.63  40.0   6.58  13.40  118.11   6.50  13.35  118.53   6.50  13.30  116.19  -1.0   -1.0  0.00  0.31  0.86   0.87   -nan   0.0 20210731 12:20:32