PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/19-02:27:50
G03     250.8          69.2                3.5 +/-    0.76       3.7 +/-    0.76  0.030 / 0.050
G09     303.6          21.0                3.8 +/-    2.14       8.2 +/-    2.14  0.030 / 0.050
G14     97.4           16.3                4.7 +/-    1.74      11.3 +/-    1.74  0.120 / 0.350
G16     129.5          56.9               -4.7 +/-    0.97      -5.5 +/-    0.97  0.140 / 0.280
G22     199.5          59.0                5.7 +/-    0.99       6.6 +/-    0.99  0.040 / 0.070
G23     315.9          45.4                3.5 +/-    1.02       4.6 +/-    1.02  0.070 / 0.070
G26     73.8           52.8                3.9 +/-    0.47       4.8 +/-    0.47  0.040 / 0.050
G31     50.7           22.3                0.0 +/-    0.41       0.1 +/-    0.41  0.030 / 0.050