PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-00:28:00
G03     251.5          69.5                5.6 +/-    1.06       5.9 +/-    1.06  0.180 / 0.260
G09     302.6          19.1                4.7 +/-    1.11      10.6 +/-    1.11  0.190 / 0.290
G14     97.0           16.2                5.8 +/-    1.35      14.0 +/-    1.35  0.030 / 0.050
G16     131.9          56.2                7.5 +/-    0.56       8.8 +/-    0.56  0.040 / 0.050
G22     199.8          59.5                7.5 +/-    0.72       8.6 +/-    0.72  0.040 / 0.050
G23     315.2          44.6                5.6 +/-    0.81       7.5 +/-    0.81  0.040 / 0.060
G26     76.2           53.7                5.3 +/-    0.58       6.4 +/-    0.58  0.070 / 0.140
G31     50.0           24.0                3.3 +/-    1.72       6.6 +/-    1.72  0.070 / 0.120