PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-01:57:30
G01     318.8          18.0               13.1 +/-    1.86      30.2 +/-    1.86  0.040 / 0.030
G08     255.9          13.2               18.0 +/-    4.53      46.8 +/-    4.53  0.040 / 0.030
G10     78.7           54.2               13.4 +/-    1.18      16.1 +/-    1.18  0.150 / 0.180
G11     301.9          24.5               13.2 +/-    1.51      26.1 +/-    1.51  0.110 / 0.180
G14     301.4          71.4               13.5 +/-    0.67      14.1 +/-    0.67  0.060 / 0.060
G18     101.5          29.6               13.3 +/-    0.69      23.5 +/-    0.69  0.060 / 0.070
G31     177.8          40.3               18.9 +/-    1.33      27.4 +/-    1.33  0.040 / 0.040
G32     0.5            68.9               12.4 +/-    0.67      13.2 +/-    0.67  0.050 / 0.050