PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-17:12:30
G02     205.6          36.5               13.5 +/-    1.24      20.9 +/-    1.24  0.060 / 0.090
G03     54.7           9.6                10.8 +/-    2.05      30.3 +/-    2.05  0.060 / 0.100
G06     149.3          74.1               13.1 +/-    0.80      13.6 +/-    0.80  0.080 / 0.070
G12     310.8          20.0                9.9 +/-    1.72      21.9 +/-    1.72  0.090 / 0.110
G19     15.8           60.9               11.8 +/-    0.91      13.2 +/-    0.91  0.110 / 0.160
G24     294.3          39.2               10.1 +/-    4.44      14.9 +/-    4.44  0.210 / 0.210
G28     107.6          27.6               11.7 +/-    1.32      21.6 +/-    1.32  0.070 / 0.270