PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/14-04:28:10
G01     312.7          28.1                2.2 +/-    1.66       4.1 +/-    1.66  0.030 / 0.030
G10     96.7           46.5                6.0 +/-    1.00       7.9 +/-    1.00  0.050 / 0.030
G11     288.3          29.0                3.4 +/-    1.42       6.1 +/-    1.42  0.050 / 0.040
G14     342.4          69.7                3.8 +/-    0.67       4.0 +/-    0.67  0.040 / 0.040
G18     111.4          21.3                4.7 +/-    1.53       9.9 +/-    1.53  0.170 / 0.180
G22     306.5          20.2                4.7 +/-    1.82      10.4 +/-    1.82  0.090 / 0.190
G25     85.2           13.6                4.0 +/-    2.20      10.2 +/-    2.20  0.110 / 0.180
G31     172.7          55.8                7.1 +/-    0.98       8.4 +/-    0.98  0.080 / 0.090
G32     24.9           59.2                4.0 +/-    1.19       4.6 +/-    1.19  0.130 / 0.210