PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-15:28:10
G02     206.9          39.8               12.9 +/-    1.82      18.8 +/-    1.82  0.070 / 0.120
G06     129.2          76.9               10.8 +/-    0.77      11.0 +/-    0.77  0.060 / 0.160
G12     313.1          26.0                9.2 +/-    1.56      17.6 +/-    1.56  0.060 / 0.080
G17     44.3           42.1                9.2 +/-    1.05      13.0 +/-    1.05  0.060 / 0.070
G19     8.7            62.5                9.1 +/-    0.83      10.1 +/-    0.83  0.110 / 0.220
G24     286.6          42.2                9.3 +/-    1.23      13.0 +/-    1.23  0.100 / 0.200
G28     109.5          26.1               12.3 +/-    2.29      23.3 +/-    2.29  0.030 / 0.030