PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/27-17:57:30
G02     324.9          80.1               13.0 +/-    0.95      13.1 +/-    0.95  0.080 / 0.230
G05     169.5          28.7               16.0 +/-    1.92      28.8 +/-    1.92  0.100 / 0.270
G06     41.5           41.7               11.5 +/-    0.81      16.3 +/-    0.81  0.030 / 0.040
G12     312.8          70.3               12.2 +/-    0.89      12.9 +/-    0.89  0.030 / 0.040
G19     75.4           26.3               12.9 +/-    1.55      24.6 +/-    1.55  0.060 / 0.100
G24     230.9          24.1               13.1 +/-    1.04      26.1 +/-    1.04  0.080 / 0.110
G25     317.1          31.7               13.0 +/-    2.18      22.1 +/-    2.18  0.090 / 0.000
G29     286.4          10.2               -9.8 +/-   15.96     -27.1 +/-   15.96  0.070 / 0.360