PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-04:58:00
G01     312.6          28.2                5.4 +/-    0.91       9.8 +/-    0.91  0.030 / 0.020
G10     96.9           46.4                6.0 +/-    0.82       8.0 +/-    0.82  0.050 / 0.020
G11     288.0          29.1                5.8 +/-    1.32      10.3 +/-    1.32  0.130 / 0.220
G14     342.9          69.6                4.8 +/-    0.53       5.1 +/-    0.53  0.150 / 0.210
G18     111.5          21.4                5.5 +/-    1.69      11.7 +/-    1.69  0.120 / 0.110
G22     306.6          20.5                6.9 +/-    2.19      15.1 +/-    2.19  0.080 / 0.100
G25     84.7           13.6                5.3 +/-    2.07      13.7 +/-    2.07  0.050 / 0.030
G31     172.3          56.2                6.9 +/-    0.58       8.1 +/-    0.58  0.050 / 0.040
G32     25.5           58.9                4.6 +/-    0.86       5.3 +/-    0.86  0.040 / 0.040