PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-10:42:40
G01     124.0          14.1                4.5 +/-    1.94      11.6 +/-    1.94  0.030 / 0.050
G07     64.9           68.6                4.0 +/-    0.89       4.2 +/-    0.89  0.030 / 0.050
G08     46.9           34.1                1.8 +/-    0.43       3.0 +/-    0.43  0.020 / 0.040
G09     175.6          29.4                5.2 +/-    2.54       9.2 +/-    2.54  0.030 / 0.040
G11     112.1          37.4                4.0 +/-    0.85       6.2 +/-    0.85  0.160 / 0.260
G13     319.9          15.1               -0.6 +/-    2.19      -1.4 +/-    2.19  0.150 / 0.290
G17     199.7          20.4                4.6 +/-    2.84      10.0 +/-    2.84  0.120 / 0.530
G18     99.3           18.4                3.1 +/-    1.79       7.1 +/-    1.79  0.130 / 0.440
G28     281.9          54.6                3.8 +/-    0.60       4.5 +/-    0.60  0.110 / 0.280
G30     334.8          62.2                2.1 +/-    0.54       2.3 +/-    0.54  0.110 / 0.260