PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-17:12:30
G02     317.3          80.7               17.8 +/-    0.47      18.0 +/-    0.47  0.080 / 0.190
G05     170.1          27.0               18.6 +/-    0.86      34.7 +/-    0.86  0.070 / 0.180
G06     41.0           43.8               15.6 +/-    1.13      21.4 +/-    1.13  0.020 / 0.050
G12     315.2          68.1               13.6 +/-    0.77      14.5 +/-    0.77  0.030 / 0.040
G17     85.2           10.8               16.2 +/-    1.90      44.4 +/-    1.90  0.090 / 0.120
G19     73.7           27.4               16.2 +/-    0.79      30.0 +/-    0.79  0.090 / 0.130
G24     232.5          25.4               16.9 +/-    1.18      32.6 +/-    1.18  0.040 / 0.110
G25     317.4          29.6               14.9 +/-    2.57      26.3 +/-    2.57  0.050 / 0.110