==== 20210731 04:20:31  *        GOES17       IR  13.28  114.86  40.0   8.64  13.73  114.50  13.14  15.16  116.02   8.94  14.63  114.35  -1.0   -1.0  0.05  1.48  4.19   0.32   1.13  61.3 
 ==== 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  13.19  114.76  -1.0   -1.0  0.00  0.31  0.86   0.87   -nan   0.0 20210731 04:20:31