PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-22:13:00
G05     47.5           20.5                7.4 +/-    0.48      16.0 +/-    0.48  0.080 / 0.170
G13     80.9           36.3               10.1 +/-    1.05      15.6 +/-    1.05  0.060 / 0.170
G15     135.0          48.8               12.3 +/-    1.35      15.7 +/-    1.35  0.200 / 0.540
G16     316.2          11.9                8.6 +/-    2.18      23.0 +/-    2.18  0.130 / 0.390
G20     239.3          7.7                 7.8 +/-    1.44      22.7 +/-    1.44  0.130 / 0.380
G21     308.5          43.5               10.3 +/-    1.29      14.2 +/-    1.29  0.110 / 0.380
G25     200.9          13.8               14.6 +/-    1.49      37.4 +/-    1.49  0.030 / 0.030
G26     290.1          21.2               11.5 +/-    2.47      24.5 +/-    2.47  0.020 / 0.030
G29     151.9          78.5               10.6 +/-    0.85      10.7 +/-    0.85  0.050 / 0.100