PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-13:43:00
G02     39.4           50.2                5.6 +/-    1.29       7.1 +/-    1.29  0.030 / 0.020
G05     131.5          66.0                8.3 +/-    0.52       9.0 +/-    0.52  0.030 / 0.030
G06     56.0           15.1                6.3 +/-    1.98      15.6 +/-    1.98  0.090 / 0.200
G12     196.7          62.6                9.2 +/-    1.45      10.3 +/-    1.45  0.080 / 0.140
G20     199.9          30.6                9.0 +/-    1.68      15.6 +/-    1.68  0.030 / 0.050
G25     286.4          57.1               11.9 +/-    3.50      13.9 +/-    3.50  0.030 / 0.030
G29     314.1          37.0                5.0 +/-    0.98       7.7 +/-    0.98  0.040 / 0.040