PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/06-16:12:30
G02     29.2           59.1               15.8 +/-    0.49      18.1 +/-    0.49  0.040 / 0.030
G05     151.8          56.7               20.3 +/-    0.91      23.8 +/-    0.91  0.040 / 0.040
G06     51.3           20.6               13.0 +/-    1.30      28.2 +/-    1.30  0.040 / 0.060
G12     208.8          72.5               16.8 +/-    1.50      17.5 +/-    1.50  0.040 / 0.060
G19     97.7           10.8               16.2 +/-    1.84      44.4 +/-    1.84  0.080 / 0.210
G20     198.1          22.1               19.8 +/-    3.97      41.5 +/-    3.97  0.090 / 0.210
G25     300.5          52.8               15.6 +/-    1.09      19.1 +/-    1.09  0.050 / 0.050
G29     306.7          29.1               11.9 +/-    2.23      21.3 +/-    2.23  0.050 / 0.060