PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/16-21:42:50
G02     73.0           23.0               12.5 +/-    1.08      25.5 +/-    1.08  0.070 / 0.300
G05     45.9           49.0               12.6 +/-    0.69      16.0 +/-    0.69  0.070 / 0.340
G12     181.0          14.1               20.4 +/-    3.14      51.9 +/-    3.14  0.090 / 0.140
G13     114.4          27.1               16.8 +/-    0.74      31.3 +/-    0.74  0.080 / 0.110
G15     155.0          26.1               18.4 +/-    1.14      35.1 +/-    1.14  0.090 / 0.190
G18     224.3          15.7               20.0 +/-    2.71      48.9 +/-    2.71  0.090 / 0.180
G20     229.4          81.1               15.6 +/-    0.95      15.7 +/-    0.95  0.030 / 0.050
G21     285.9          28.5               13.0 +/-    2.69      23.6 +/-    2.69  0.030 / 0.060
G25     212.4          34.7               15.6 +/-    1.08      25.0 +/-    1.08  0.030 / 0.040
G29     346.4          75.3               14.9 +/-    0.49      15.4 +/-    0.49  0.030 / 0.040