PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-02:57:50
G10     290.4          49.3               12.3 +/-    0.66      15.6 +/-    0.66  0.070 / 0.100
G15     47.5           34.2                7.3 +/-    0.61      11.7 +/-    0.61  0.060 / 0.100
G20     323.2          62.9                9.7 +/-    0.92      10.7 +/-    0.92  0.040 / 0.050
G21     75.0           77.0               10.1 +/-    0.87      10.3 +/-    0.87  0.040 / 0.050
G24     101.6          24.4                8.8 +/-    1.81      17.5 +/-    1.81  0.040 / 0.050
G27     305.3          31.9               12.1 +/-    0.88      20.4 +/-    0.88  0.040 / 0.040
G29     168.8          12.8                8.7 +/-    1.89      22.7 +/-    1.89  0.080 / 0.160
G32     208.4          29.0               12.4 +/-    1.37      22.3 +/-    1.37  0.060 / 0.150