PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/10-13:57:50
G01     41.0           16.4                6.2 +/-    2.66      14.9 +/-    2.66  0.040 / 0.060
G06     174.0          37.9                8.3 +/-    1.12      12.6 +/-    1.12  0.040 / 0.060
G13     237.5          23.5                8.4 +/-    1.07      17.0 +/-    1.07  0.240 / 0.340
G15     272.5          12.5                5.8 +/-    1.64      15.4 +/-    1.64  0.400 / 0.170
G17     344.7          73.8                7.7 +/-    0.72       8.0 +/-    0.72  0.020 / 0.030
G19     275.3          69.9                7.7 +/-    0.94       8.2 +/-    0.94  0.030 / 0.030
G24     317.0          17.2                5.5 +/-    2.08      12.9 +/-    2.08  0.040 / 0.040
G28     62.5           52.2                7.0 +/-    0.71       8.6 +/-    0.71  0.040 / 0.040
G30     154.2          29.0                8.4 +/-    1.05      15.0 +/-    1.05  0.070 / 0.090