PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-15:42:50
G02     204.0          31.4                9.8 +/-    1.68      16.7 +/-    1.68  0.070 / 0.080
G06     154.5          69.9                9.9 +/-    0.74      10.5 +/-    0.74  0.070 / 0.090
G12     308.6          18.9                8.1 +/-    2.06      18.3 +/-    2.06  0.100 / 0.130
G17     36.6           48.6                7.0 +/-    1.25       9.0 +/-    1.25  0.080 / 0.220
G19     350.7          66.9                7.7 +/-    0.46       8.3 +/-    0.46  0.030 / 0.020
G24     297.1          39.0                7.6 +/-    5.48      11.2 +/-    5.48  0.030 / 0.020
G28     101.7          31.8                7.9 +/-    1.05      13.3 +/-    1.05  0.030 / 0.030