PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-18:13:10
G02     202.5          28.9               11.9 +/-    1.69      21.3 +/-    1.69  0.080 / 0.260
G06     161.4          65.6               11.4 +/-    0.77      12.4 +/-    0.77  0.140 / 0.320
G12     305.9          14.4                6.8 +/-    1.82      17.1 +/-    1.82  0.080 / 0.120
G17     31.1           53.1                9.9 +/-    0.57      12.0 +/-    0.57  0.060 / 0.130
G19     343.1          68.3                9.7 +/-    0.77      10.4 +/-    0.77  0.060 / 0.090
G24     301.6          36.5               10.4 +/-    1.59      16.0 +/-    1.59  0.060 / 0.110
G28     98.1           34.1                9.6 +/-    0.63      15.5 +/-    0.63  0.090 / 0.120