PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/03-18:12:40
G02     19.5           65.7               15.0 +/-    0.62      16.3 +/-    0.62  0.030 / 0.040
G05     160.9          48.4               20.3 +/-    0.83      26.1 +/-    0.83  0.030 / 0.040
G06     48.4           24.8               12.9 +/-    1.01      25.3 +/-    1.01  0.130 / 0.280
G12     227.4          77.8               15.1 +/-    0.71      15.4 +/-    0.71  0.200 / 0.310
G19     92.3           14.6               15.1 +/-    1.61      37.8 +/-    1.61  0.050 / 0.080
G20     197.3          16.5               24.0 +/-    2.53      57.6 +/-    2.53  0.050 / 0.070
G24     216.8          10.7               20.9 +/-    1.86      57.5 +/-    1.86  0.030 / 0.050
G25     307.1          49.0               17.4 +/-    0.92      22.3 +/-    0.92  0.050 / 0.050
G29     301.1          23.0               15.4 +/-    1.66      31.6 +/-    1.66  0.060 / 0.130