PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-13:57:40
G01     40.0           15.0                5.8 +/-    1.93      14.5 +/-    1.93  0.040 / 0.100
G06     173.6          39.9                9.5 +/-    1.42      13.8 +/-    1.42  0.050 / 0.060
G13     236.0          22.3                8.8 +/-    1.18      18.3 +/-    1.18  0.110 / 0.360
G15     270.8          11.9                6.3 +/-    3.97      16.8 +/-    3.97  0.090 / 0.220
G17     349.8          72.6                7.6 +/-    0.73       7.9 +/-    0.73  0.140 / 0.170
G19     281.1          70.7                7.6 +/-    0.67       8.0 +/-    0.67  0.110 / 0.210
G24     316.5          18.7                6.6 +/-    1.66      15.0 +/-    1.66  0.050 / 0.100
G28     65.2           51.4                7.0 +/-    0.80       8.7 +/-    0.80  0.060 / 0.090
G30     154.7          27.2                8.2 +/-    1.17      15.3 +/-    1.17  0.100 / 0.280