==== 20180910 21:30:00  -        GOES15       IR  21.33  121.27  35.0   5.45  21.81  120.92   7.42  21.01  121.64   5.52  21.81  120.84  -1.0   -1.0  0.05  0.51  1.43   0.54   3.32  60.2 
 ==== 20180910 21:30:00  -        GOES15   NearIR  21.33  121.27  35.0   7.16  21.51  120.76   5.97  20.76  121.94   7.19  21.53  120.78  -1.0   -1.0  0.45  0.51  1.44   0.42   3.30  48.6 
 ==== 20180910 21:30:00  *        GOES15      Vis  21.33  121.27  35.0  11.77  21.18  121.05   7.78  21.58  120.33  11.76  21.21  121.05  -1.0   -1.0  0.10  0.15  0.42   0.83  11.19  72.4 
 ==== 20180910 15:51:28  -        SSMI17 85-92GHz  20.87  120.81  35.0   4.05  21.22  120.22   3.69  21.17  120.33   3.69  21.32  121.27  -1.0   -1.0  0.00  0.35  0.99   0.66   3.60   0.0 20180910 21:30:00 
 ==== 20180910 15:04:31  -        SSMI18 85-92GHz  20.81  120.71  35.0   4.47  20.96  120.18   4.23  20.96  120.23   4.23  21.33  121.27  -1.0   -1.0  0.00  0.26  0.73   1.18   4.21   0.0 20180910 21:30:00 
 ==== 20180910 21:58:05  -           GMI 85-92GHz  21.36  121.33  35.0   6.39  21.71  121.60   6.31  21.61  121.44   6.31  21.33  121.26  -1.0   -1.0  0.00  0.35  0.98   0.67   -nan   0.0 20180910 21:30:00