PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/28-02:12:40
G01     228.7          19.3                7.2 +/-    1.21      16.1 +/-    1.21  0.030 / 0.040
G03     296.4          64.0                3.8 +/-    0.61       4.2 +/-    0.61  0.030 / 0.030
G14     84.4           25.2                5.4 +/-    1.05      10.5 +/-    1.05  0.190 / 0.310
G16     155.4          39.1                9.6 +/-    0.93      14.2 +/-    0.93  0.140 / 0.280
G22     229.5          73.4                6.7 +/-    0.48       6.9 +/-    0.48  0.090 / 0.090
G23     304.0          33.6                6.0 +/-    0.92       9.7 +/-    0.92  0.060 / 0.100
G26     111.6          54.0                8.0 +/-    0.46       9.6 +/-    0.46  0.070 / 0.370
G31     42.3           39.8               -0.4 +/-    0.76      -0.6 +/-    0.76  0.070 / 0.230
G32     96.1           10.2                5.1 +/-    2.53      14.2 +/-    2.53  0.110 / 0.160