PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/11-07:58:10
G01     117.8          18.7                6.4 +/-    1.49      14.4 +/-    1.49  0.030 / 0.040
G07     86.0           64.9                6.8 +/-    0.64       7.4 +/-    0.64  0.030 / 0.030
G08     43.7           28.1                2.3 +/-    0.81       4.2 +/-    0.81  0.030 / 0.040
G09     173.2          19.8                9.3 +/-    3.92      20.5 +/-    3.92  0.030 / 0.040
G11     102.8          40.6                8.0 +/-    0.61      11.6 +/-    0.61  0.170 / 0.330
G13     316.8          21.0                3.4 +/-    3.37       7.2 +/-    3.37  0.180 / 0.290
G17     201.2          28.0                8.1 +/-    1.12      14.8 +/-    1.12  0.120 / 0.350
G18     90.8           21.2                6.6 +/-    0.75      14.0 +/-    0.75  0.080 / 0.350
G28     293.5          57.2                6.0 +/-    0.89       7.0 +/-    0.89  0.110 / 0.190
G30     345.4          68.7                3.8 +/-    0.84       4.1 +/-    0.84  0.110 / 0.180