PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-02:28:00
G10     300.0          53.3                9.3 +/-    1.45      11.3 +/-    1.45  0.070 / 0.090
G14     210.1          12.1                5.5 +/-   29.63      14.7 +/-   29.63  0.060 / 0.090
G15     45.9           26.6                6.9 +/-    2.11      13.0 +/-    2.11  0.070 / 0.050
G20     353.8          65.2                9.6 +/-    0.81      10.5 +/-    0.81  0.070 / 0.060
G21     97.7           73.9               10.6 +/-    0.83      11.0 +/-    0.83  0.040 / 0.040
G24     97.2           26.8                7.5 +/-    1.72      14.1 +/-    1.72  0.040 / 0.030
G27     300.7          34.2                9.0 +/-    0.83      14.4 +/-    0.83  0.110 / 0.560
G32     210.9          30.8               11.6 +/-    1.35      20.1 +/-    1.35  0.110 / 0.570