PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/27-23:13:10
G01     226.7          17.6                9.9 +/-    3.16      23.1 +/-    3.16  0.080 / 0.200
G03     290.2          66.8                4.6 +/-    1.59       4.9 +/-    1.59  0.090 / 0.200
G14     86.1           24.2                7.3 +/-    1.42      14.6 +/-    1.42  0.030 / 0.030
G16     147.4          44.0                9.2 +/-    1.35      12.5 +/-    1.35  0.030 / 0.040
G22     221.0          71.2                6.5 +/-    0.77       6.9 +/-    0.77  0.130 / 0.340
G23     305.7          35.0                7.2 +/-    0.75      11.4 +/-    0.75  0.170 / 0.390
G26     101.5          54.5                5.9 +/-    0.68       7.1 +/-    0.68  0.040 / 0.090
G31     44.3           35.4                5.0 +/-    0.91       7.9 +/-    0.91  0.040 / 0.080