PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/17-23:43:00
G01     318.6          20.2                7.4 +/-    1.63      16.2 +/-    1.63  0.170 / 0.330
G08     259.6          13.2                9.9 +/-    3.15      25.6 +/-    3.15  0.230 / 0.300
G10     81.8           51.1               10.3 +/-    0.60      12.9 +/-    0.60  0.040 / 0.040
G11     303.9          21.9                8.9 +/-    1.43      18.6 +/-    1.43  0.040 / 0.050
G14     291.3          69.6                7.7 +/-    1.37       8.1 +/-    1.37  0.050 / 0.090
G18     304.0          41.4                8.6 +/-    1.80      12.2 +/-    1.80  0.050 / 0.080
G20     106.5          27.6               10.4 +/-    0.86      19.1 +/-    0.86  0.020 / 0.030
G31     174.3          43.6               10.3 +/-    1.11      14.1 +/-    1.11  0.030 / 0.030
G32     9.6            67.0                7.5 +/-    1.05       8.1 +/-    1.05  0.190 / 0.320