PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-20:28:10
G05     52.3           11.1                8.5 +/-    2.35      23.2 +/-    2.35  0.350 / 0.200
G10     242.9          20.0               16.1 +/-    1.74      35.4 +/-    1.74  0.340 / 0.280
G13     63.2           34.0               10.9 +/-    1.83      17.5 +/-    1.83  0.140 / 0.380
G15     117.7          57.7               12.6 +/-    0.65      14.7 +/-    0.65  0.090 / 0.370
G16     304.4          15.3                7.5 +/-    1.50      18.6 +/-    1.50  0.240 / 0.190
G20     258.0          44.2               12.5 +/-    3.07      17.0 +/-    3.07  0.100 / 0.280
G21     323.0          53.5               11.4 +/-    0.66      13.8 +/-    0.66  0.080 / 0.060
G26     276.8          18.7               11.8 +/-    1.33      26.9 +/-    1.33  0.040 / 0.050
G29     161.6          61.6               13.0 +/-    0.52      14.6 +/-    0.52  0.090 / 0.110