PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/03-20:43:10
G10     258.8          34.4               10.8 +/-    1.95      17.3 +/-    1.95  0.040 / 0.050
G13     46.1           23.2                9.9 +/-    1.92      20.2 +/-    1.92  0.040 / 0.050
G15     71.1           55.0               12.1 +/-    0.79      14.4 +/-    0.79  0.070 / 0.170
G16     286.7          14.8                5.0 +/-    7.27      12.6 +/-    7.27  0.080 / 0.210
G20     284.2          56.6               10.4 +/-    2.27      12.2 +/-    2.27  0.120 / 0.630
G21     345.3          65.6               12.0 +/-    0.91      13.0 +/-    0.91  0.180 / 0.520
G26     260.1          11.7               10.7 +/-    2.57      28.8 +/-    2.57  0.370 / 0.330
G27     321.8          11.8               -0.2 +/-   30.44      -0.6 +/-   30.44  0.460 / 0.400
G29     165.8          40.6               12.4 +/-    1.12      17.8 +/-    1.12  0.030 / 0.030