PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/13-23:27:40
G05     51.1           11.4                7.1 +/-    2.72      19.3 +/-    2.72  0.110 / 0.160
G10     240.3          18.7               13.9 +/-    1.64      31.7 +/-    1.64  0.070 / 0.170
G13     66.8           34.3               10.2 +/-    1.62      16.3 +/-    1.62  0.040 / 0.060
G15     112.1          55.8               12.3 +/-    0.81      14.5 +/-    0.81  0.040 / 0.060
G16     309.1          13.9                7.9 +/-    1.53      20.3 +/-    1.53  0.070 / 0.130
G20     254.5          41.5               13.5 +/-    2.35      19.1 +/-    2.35  0.060 / 0.120
G21     319.4          50.7               11.4 +/-    0.60      14.3 +/-    0.60  0.040 / 0.040
G26     281.5          19.2                9.1 +/-    0.92      20.3 +/-    0.92  0.040 / 0.040
G29     157.2          64.1               12.5 +/-    0.33      13.7 +/-    0.33  0.110 / 0.350