PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/08-13:13:10
G01     93.5           31.0                6.9 +/-    1.31      11.8 +/-    1.31  0.030 / 0.030
G07     122.8          47.9                6.8 +/-    1.45       8.8 +/-    1.45  0.030 / 0.030
G11     70.9           40.2                7.0 +/-    0.53      10.1 +/-    0.53  0.070 / 0.120
G13     297.5          35.3                6.1 +/-    1.40       9.6 +/-    1.40  0.080 / 0.130
G17     212.1          51.8                7.8 +/-    0.97       9.6 +/-    0.97  0.050 / 0.090
G18     66.2           24.1                5.5 +/-    1.02      10.9 +/-    1.02  0.040 / 0.100
G19     213.7          21.3                6.2 +/-    0.71      13.2 +/-    0.71  0.060 / 0.140
G28     343.0          61.9                4.2 +/-    1.02       4.7 +/-    1.02  0.070 / 0.100
G30     87.8           79.1                6.2 +/-    0.77       6.3 +/-    0.77  0.040 / 0.060