PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-13:12:30
G01     114.5          20.9                6.8 +/-    1.26      14.6 +/-    1.26  0.030 / 0.040
G07     95.0           60.9                5.3 +/-    0.62       6.0 +/-    0.62  0.030 / 0.040
G08     43.0           25.5                4.5 +/-    0.98       8.7 +/-    0.98  0.070 / 0.340
G11     97.4           39.8                6.2 +/-    0.56       9.0 +/-    0.56  0.080 / 0.300
G13     316.3          21.3                3.3 +/-    2.23       7.0 +/-    2.23  0.040 / 0.030
G17     202.3          31.9                6.7 +/-    1.69      11.4 +/-    1.69  0.040 / 0.030
G28     302.2          58.9                4.9 +/-    1.02       5.6 +/-    1.02  0.070 / 0.110
G30     351.1          70.8                4.0 +/-    0.92       4.2 +/-    0.92  0.060 / 0.110