PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-12:43:00
G07     42.6           68.5               12.9 +/-   11.53      13.8 +/-   11.53  0.130 / 0.360
G08     54.7           42.4               -0.5 +/-   12.93      -0.6 +/-   12.93  0.150 / 0.370
G09     176.8          40.8                0.3 +/-   12.55       0.4 +/-   12.55  0.160 / 0.300
G11     121.6          30.6               10.1 +/-   10.32      17.5 +/-   10.32  0.260 / 0.270
G17     198.6          11.2               -0.4 +/-   16.99      -1.1 +/-   16.99  0.020 / 0.030
G23     161.0          14.9               10.8 +/-   16.24      26.8 +/-   16.24  0.020 / 0.040
G27     38.1           11.2                5.4 +/-    2.49      14.6 +/-    2.49  0.030 / 0.050
G28     267.5          49.4              -22.2 +/-   52.61     -28.2 +/-   52.61  0.050 / 0.060
G30     324.2          53.4               -4.7 +/-   17.19      -5.7 +/-   17.19  0.120 / 0.260