PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/08-16:12:30
G02     204.6          34.2               12.8 +/-    1.43      20.7 +/-    1.43  0.140 / 0.110
G06     149.8          72.2               12.7 +/-    0.78      13.3 +/-    0.78  0.100 / 0.130
G12     309.8          20.6               10.2 +/-    2.50      22.1 +/-    2.50  0.130 / 0.300
G17     38.6           47.0               10.1 +/-    1.41      13.3 +/-    1.41  0.280 / 0.320
G19     356.9          65.6                9.8 +/-    0.40      10.6 +/-    0.40  0.030 / 0.020
G24     294.4          40.0               13.0 +/-    6.32      18.9 +/-    6.32  0.040 / 0.020
G28     104.1          30.1               10.5 +/-    1.05      18.3 +/-    1.05  0.050 / 0.030