PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-22:28:10
G10     262.6          35.6               22.5 +/-    2.21      35.3 +/-    2.21  0.130 / 0.260
G13     44.0           21.3               15.5 +/-    1.17      33.1 +/-    1.17  0.180 / 0.330
G15     68.1           55.0               17.9 +/-    0.53      21.3 +/-    0.53  0.060 / 0.050
G16     281.2          13.7               20.8 +/-    1.64      53.2 +/-    1.64  0.060 / 0.050
G20     263.3          24.8               11.7 +/-    1.03      23.0 +/-    1.03  0.080 / 0.320
G21     350.8          68.5               17.7 +/-    1.81      18.9 +/-    1.81  0.080 / 0.270
G24     122.1          11.9               21.1 +/-    1.74      56.3 +/-    1.74  0.130 / 0.350
G27     320.5          15.2               17.0 +/-    3.41      42.1 +/-    3.41  0.130 / 0.380
G29     167.9          37.0               19.9 +/-    1.08      30.5 +/-    1.08  0.110 / 0.340