PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-21:57:40
G10     252.5          27.4               15.0 +/-    1.81      27.7 +/-    1.81  0.090 / 0.110
G13     52.7           30.2               13.9 +/-    1.80      24.2 +/-    1.80  0.100 / 0.170
G15     82.8           57.2               16.0 +/-    0.96      18.6 +/-    0.96  0.100 / 0.290
G16     296.5          14.0               11.0 +/-    1.78      27.9 +/-    1.78  0.120 / 0.360
G18     272.6          57.3               12.5 +/-    1.68      14.6 +/-    1.68  0.030 / 0.040
G20     44.7           46.1               13.6 +/-    0.50      18.1 +/-    0.50  0.030 / 0.040
G21     338.1          62.7               14.7 +/-    0.53      16.3 +/-    0.53  0.060 / 0.070
G26     269.0          14.4               13.4 +/-    2.13      33.9 +/-    2.13  0.060 / 0.070
G29     163.8          43.5               15.6 +/-    0.92      21.5 +/-    0.92  0.040 / 0.060