PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/06-16:42:40
G02     41.4           48.6               16.5 +/-    0.37      21.2 +/-    0.37  0.030 / 0.050
G05     128.1          68.1               18.9 +/-    1.19      20.2 +/-    1.19  0.030 / 0.050
G06     58.7           10.7               16.1 +/-    4.74      44.1 +/-    4.74  0.040 / 0.050
G12     193.0          58.0               19.8 +/-    1.00      22.9 +/-    1.00  0.040 / 0.060
G20     199.9          35.6               20.9 +/-    0.87      32.8 +/-    0.87  0.080 / 0.140
G25     276.8          59.1               17.8 +/-    1.23      20.4 +/-    1.23  0.090 / 0.150
G29     316.3          39.3               15.0 +/-    1.12      22.1 +/-    1.12  0.030 / 0.040