PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/18-05:12:50
G01     250.5          35.2                5.6 +/-    2.12       8.8 +/-    2.12  0.040 / 0.030
G03     316.0          42.4                3.2 +/-    0.79       4.4 +/-    0.79  0.040 / 0.030
G11     235.9          11.7                5.3 +/-    1.51      14.3 +/-    1.51  0.070 / 0.080
G14     59.9           41.5                3.6 +/-    1.45       5.1 +/-    1.45  0.080 / 0.080
G16     160.3          20.2               -4.0 +/-    9.87      -8.8 +/-    9.87  0.280 / 0.540
G18     220.1          27.0                6.2 +/-    2.84      11.5 +/-    2.84  0.230 / 0.440
G22     304.4          65.5                4.4 +/-    0.80       4.8 +/-    0.80  0.050 / 0.060
G26     133.0          39.2                5.5 +/-    0.53       8.1 +/-    0.53  0.050 / 0.070
G31     41.3           55.5                3.5 +/-    0.48       4.2 +/-    0.48  0.100 / 0.240
G32     78.6           21.0                2.9 +/-    2.40       6.3 +/-    2.40  0.110 / 0.310