PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/14-02:12:30
G02     28.3           59.1                6.2 +/-    1.03       7.1 +/-    1.03  0.110 / 0.090
G05     145.7          57.3                8.5 +/-    0.71       9.9 +/-    0.71  0.050 / 0.080
G06     49.3           23.3                4.0 +/-    1.76       8.1 +/-    1.76  0.020 / 0.020
G12     220.2          75.5                7.9 +/-    0.47       8.1 +/-    0.47  0.020 / 0.020
G19     95.0           13.0                6.1 +/-    1.98      15.8 +/-    1.98  0.030 / 0.030
G25     303.7          50.2                7.2 +/-    2.64       9.1 +/-    2.64  0.030 / 0.030
G29     305.2          27.7                6.3 +/-    2.45      11.5 +/-    2.45  0.130 / 0.210