PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-23:27:20
G02     221.5          66.7               13.5 +/-    0.86      14.5 +/-    0.86  0.030 / 0.050
G06     47.5           68.7               11.8 +/-    0.53      12.6 +/-    0.53  0.040 / 0.060
G12     320.2          41.6               11.8 +/-    0.72      16.7 +/-    0.72  0.060 / 0.090
G17     60.1           31.8               12.2 +/-    1.35      20.6 +/-    1.35  0.070 / 0.080
G19     44.5           46.6               11.8 +/-    0.74      15.5 +/-    0.74  0.030 / 0.030
G24     257.8          39.9               14.5 +/-    3.28      21.0 +/-    3.28  0.030 / 0.030