PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-02:42:30
G02     73.8           20.8                7.1 +/-    2.45      15.4 +/-    2.45  0.060 / 0.140
G05     45.3           43.4                6.4 +/-    0.67       8.9 +/-    0.67  0.080 / 0.100
G12     182.3          17.4                8.8 +/-    1.12      20.7 +/-    1.12  0.160 / 0.250
G13     111.8          26.2                9.6 +/-    1.24      18.3 +/-    1.24  0.110 / 0.280
G15     152.8          27.5                9.2 +/-    1.77      17.0 +/-    1.77  0.080 / 0.160
G20     227.1          12.5                8.1 +/-    8.14      21.4 +/-    8.14  0.060 / 0.170
G25     217.0          37.6               10.3 +/-    2.25      15.6 +/-    2.25  0.040 / 0.040
G26     317.5          11.3               -1.4 +/-   30.35      -3.9 +/-   30.35  0.040 / 0.040
G29     351.0          75.3                9.4 +/-    0.40       9.7 +/-    0.40  0.060 / 0.120