PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/12-02:58:10
G01     235.6          25.4                9.8 +/-    1.68      18.9 +/-    1.68  0.080 / 0.140
G03     308.4          56.5                3.3 +/-    1.47       3.8 +/-    1.47  0.060 / 0.140
G14     76.5           30.3                5.8 +/-    1.01      10.0 +/-    1.01  0.030 / 0.040
G16     159.3          30.8               10.2 +/-    1.69      17.6 +/-    1.69  0.040 / 0.030
G22     264.8          75.2                6.0 +/-    0.72       6.2 +/-    0.72  0.060 / 0.130
G23     297.5          27.7                4.5 +/-    2.15       8.3 +/-    2.15  0.070 / 0.150
G26     125.3          48.8                7.7 +/-    0.86       9.9 +/-    0.86  0.030 / 0.050
G31     40.2           46.9                3.9 +/-    0.51       5.2 +/-    0.51  0.030 / 0.050
G32     88.9           16.1                5.5 +/-    1.59      13.4 +/-    1.59  0.090 / 0.210