PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-06:42:40
G03     195.5          30.2                9.1 +/-    1.79      15.8 +/-    1.79  0.090 / 0.210
G07     282.2          33.1                6.8 +/-    1.80      11.3 +/-    1.80  0.130 / 0.220
G08     145.7          21.6                7.7 +/-    1.56      16.3 +/-    1.56  0.080 / 0.100
G09     322.8          59.5                7.7 +/-    0.58       8.8 +/-    0.58  0.080 / 0.100
G16     46.1           45.2                5.9 +/-    0.60       7.9 +/-    0.60  0.030 / 0.020
G22     180.5          14.4                6.2 +/-    1.69      15.6 +/-    1.69  0.020 / 0.030
G23     43.4           83.3                7.6 +/-    1.13       7.7 +/-    1.13  0.080 / 0.120
G26     43.0           17.9                3.3 +/-    3.53       7.6 +/-    3.53  0.060 / 0.110
G27     110.5          29.4                8.7 +/-    1.19      15.4 +/-    1.19  0.040 / 0.070