PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/13-20:12:40
G05     50.8           13.9                7.9 +/-    1.37      20.2 +/-    1.37  0.070 / 0.180
G10     240.4          17.5               13.2 +/-    1.04      30.9 +/-    1.04  0.060 / 0.160
G13     67.4           35.1                9.9 +/-    0.95      15.7 +/-    0.95  0.060 / 0.060
G15     123.8          55.8               11.8 +/-    0.62      14.0 +/-    0.62  0.070 / 0.070
G16     307.7          14.6                6.2 +/-    1.94      15.7 +/-    1.94  0.070 / 0.120
G20     254.3          41.7               11.1 +/-    1.74      15.7 +/-    1.74  0.070 / 0.130
G21     319.4          51.1               10.8 +/-    0.97      13.4 +/-    0.97  0.090 / 0.310
G26     280.4          19.5                7.8 +/-    1.76      17.4 +/-    1.76  0.120 / 0.260
G29     159.9          65.7               11.4 +/-    0.94      12.4 +/-    0.94  0.030 / 0.050