PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-05:27:50
G01     114.3          21.1                7.0 +/-    1.93      14.9 +/-    1.93  0.110 / 0.170
G07     95.3           61.9                5.4 +/-    0.81       6.1 +/-    0.81  0.070 / 0.190
G08     42.5           24.3                3.5 +/-    1.65       6.9 +/-    1.65  0.040 / 0.050
G09     174.0          17.9                5.0 +/-    1.37      11.6 +/-    1.37  0.040 / 0.060
G11     97.1           41.7                6.4 +/-    0.74       9.1 +/-    0.74  0.030 / 0.030
G13     314.6          23.9                3.2 +/-    1.69       6.5 +/-    1.69  0.040 / 0.030
G17     202.0          32.6                6.9 +/-    0.88      11.4 +/-    0.88  0.030 / 0.030
G28     299.8          58.3                5.0 +/-    1.10       5.8 +/-    1.10  0.030 / 0.020
G30     352.9          72.1                5.2 +/-    0.53       5.4 +/-    0.53  0.070 / 0.080