PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/03-13:12:50
G01     104.3          26.9                7.7 +/-    0.92      14.4 +/-    0.92  0.020 / 0.030
G07     110.9          56.1                6.3 +/-    0.61       7.4 +/-    0.61  0.030 / 0.030
G08     41.6           16.8                5.5 +/-    1.19      13.1 +/-    1.19  0.070 / 0.130
G11     84.0           42.4                7.0 +/-    0.76       9.8 +/-    0.76  0.080 / 0.150
G13     307.3          30.5                4.7 +/-    0.99       8.1 +/-    0.99  0.030 / 0.050
G17     206.7          41.3                7.3 +/-    1.22      10.4 +/-    1.22  0.040 / 0.060
G18     76.9           24.4                6.5 +/-    1.15      12.8 +/-    1.15  0.040 / 0.080
G19     210.3          12.5               -3.6 +/-    5.56      -9.4 +/-    5.56  0.050 / 0.090
G28     322.8          61.3                5.1 +/-    1.03       5.7 +/-    1.03  0.030 / 0.050
G30     29.4           79.2                5.5 +/-    0.55       5.6 +/-    0.55  0.040 / 0.040