PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/16-15:27:40
G02     203.2          28.3               11.1 +/-    1.10      20.2 +/-    1.10  0.080 / 0.090
G06     159.1          66.7                7.1 +/-    0.43       7.6 +/-    0.43  0.090 / 0.110
G12     306.9          16.6                5.5 +/-    1.96      13.2 +/-    1.96  0.100 / 0.210
G17     33.9           50.8                7.7 +/-    1.22       9.6 +/-    1.22  0.280 / 0.150
G19     342.4          68.2                6.4 +/-    0.25       6.8 +/-    0.25  0.030 / 0.030
G24     300.3          37.5                5.7 +/-    1.06       8.6 +/-    1.06  0.030 / 0.030
G28     98.6           33.8                7.6 +/-    1.11      12.4 +/-    1.11  0.030 / 0.030