PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-17:57:40
G02     27.2           60.5               14.9 +/-    0.70      16.9 +/-    0.70  0.030 / 0.030
G05     154.9          55.2               16.1 +/-    0.45      19.1 +/-    0.45  0.030 / 0.050
G06     51.3           20.2               11.2 +/-    0.68      24.5 +/-    0.68  0.040 / 0.060
G12     208.1          72.7               14.1 +/-    0.92      14.7 +/-    0.92  0.040 / 0.050
G19     97.2           11.0               14.2 +/-    1.33      38.8 +/-    1.33  0.070 / 0.220
G20     197.7          22.1               17.1 +/-    1.10      35.7 +/-    1.10  0.070 / 0.180
G25     300.4          53.3               15.6 +/-    1.11      19.0 +/-    1.11  0.100 / 0.160
G29     305.6          27.5               13.7 +/-    1.62      25.4 +/-    1.62  0.080 / 0.130