PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-03:27:50
G01     320.3          13.5                8.6 +/-    1.81      22.2 +/-    1.81  0.030 / 0.040
G08     260.7          15.9               11.4 +/-    3.58      27.8 +/-    3.58  0.030 / 0.030
G10     69.3           57.0                9.1 +/-    0.74      10.6 +/-    0.74  0.150 / 0.530
G11     306.2          22.1                7.7 +/-    1.77      16.2 +/-    1.77  0.190 / 0.380
G14     284.3          70.1               10.1 +/-    0.65      10.7 +/-    0.65  0.130 / 0.320
G18     96.2           33.9                9.0 +/-    1.00      14.6 +/-    1.00  0.120 / 0.300
G21     154.8          10.0                7.3 +/-    1.89      20.5 +/-    1.89  0.120 / 0.330
G27     226.6          11.9                9.8 +/-    2.39      26.2 +/-    2.39  0.140 / 0.380
G31     177.9          35.2               10.9 +/-    0.97      17.2 +/-    0.97  0.040 / 0.060
G32     349.3          71.8                9.9 +/-    0.61      10.3 +/-    0.61  0.040 / 0.050