PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-14:12:30
G07     316.9          51.2                9.9 +/-    1.25      12.3 +/-    1.25  0.070 / 0.150
G08     118.9          46.8               12.5 +/-    0.78      16.5 +/-    0.78  0.060 / 0.160
G09     236.4          83.1                8.1 +/-    0.97       8.1 +/-    0.97  0.030 / 0.050
G16     43.8           14.7                6.9 +/-    1.38      17.4 +/-    1.38  0.030 / 0.040
G23     149.5          50.9               11.8 +/-    1.10      14.7 +/-    1.10  0.140 / 0.340
G27     67.7           36.2                8.6 +/-    0.49      13.3 +/-    0.49  0.130 / 0.220
G28     229.2          20.1               11.2 +/-    2.72      24.5 +/-    2.72  0.050 / 0.070
G30     292.8          27.6                8.0 +/-    2.72      14.7 +/-    2.72  0.050 / 0.060