PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-16:27:40
G08     286.8          23.8                6.9 +/-    1.16      13.9 +/-    1.16  0.050 / 0.120
G10     18.5           62.8                6.7 +/-    0.49       7.4 +/-    0.49  0.050 / 0.120
G14     233.8          51.0                9.0 +/-    0.83      11.1 +/-    0.83  0.050 / 0.080
G18     317.4          16.7                6.8 +/-    1.75      16.1 +/-    1.75  0.050 / 0.070
G20     71.5           49.7                7.4 +/-    0.73       9.4 +/-    0.73  0.030 / 0.030
G21     147.9          32.2                8.4 +/-    0.97      14.1 +/-    0.97  0.030 / 0.030
G24     49.6           20.6                7.6 +/-    1.09      16.5 +/-    1.09  0.120 / 0.130
G27     253.0          29.6                7.0 +/-    1.44      12.3 +/-    1.44  0.100 / 0.160
G32     253.8          69.8                8.0 +/-    1.16       8.5 +/-    1.16  0.070 / 0.130