PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-14:43:10
G01     43.1           19.0                6.2 +/-    3.06      14.0 +/-    3.06  0.090 / 0.110
G06     173.8          37.0               10.3 +/-    1.28      15.8 +/-    1.28  0.060 / 0.100
G13     240.5          24.5                8.3 +/-    1.71      16.5 +/-    1.71  0.260 / 0.230
G15     277.7          12.8                7.8 +/-    1.62      20.4 +/-    1.62  0.160 / 0.280
G17     356.9          72.6                7.8 +/-    0.53       8.1 +/-    0.53  0.150 / 0.230
G19     262.1          63.9                8.9 +/-    1.13       9.8 +/-    1.13  0.280 / 0.310
G24     317.1          17.7                5.0 +/-    2.52      11.7 +/-    2.52  0.110 / 0.260
G28     66.4           48.7                7.1 +/-    0.93       9.0 +/-    0.93  0.090 / 0.330
G30     154.0          32.7                8.6 +/-    1.30      14.3 +/-    1.30  0.100 / 0.100