PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/22-23:12:40
G10     251.5          26.5               16.2 +/-    1.75      30.6 +/-    1.75  0.090 / 0.340
G13     53.7           30.8               13.5 +/-    0.79      23.3 +/-    0.79  0.110 / 0.350
G15     86.5           57.8               15.9 +/-    0.65      18.4 +/-    0.65  0.030 / 0.050
G16     297.0          14.3               11.9 +/-    2.78      30.1 +/-    2.78  0.030 / 0.060
G18     270.2          56.1               15.4 +/-    0.78      18.1 +/-    0.78  0.030 / 0.040
G20     44.1           46.7               12.5 +/-    0.54      16.5 +/-    0.54  0.040 / 0.050
G21     335.4          61.4               13.5 +/-    0.81      15.1 +/-    0.81  0.080 / 0.130
G26     269.3          15.0               15.1 +/-    1.37      37.5 +/-    1.37  0.070 / 0.160
G29     163.9          45.6               15.2 +/-    1.03      20.3 +/-    1.03  0.040 / 0.070