PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/14-18:13:00
G02     238.3          73.0               12.3 +/-    0.60      12.8 +/-    0.60  0.080 / 0.100
G05     174.9          13.5               18.3 +/-    2.23      47.4 +/-    2.23  0.070 / 0.130
G06     40.9           58.2               11.0 +/-    0.83      12.7 +/-    0.83  0.040 / 0.050
G12     321.8          53.0               11.3 +/-    0.96      13.8 +/-    0.96  0.040 / 0.060
G17     72.9           19.8               10.1 +/-    1.25      22.4 +/-    1.25  0.090 / 0.270
G19     59.3           36.7                9.5 +/-    0.91      14.6 +/-    0.91  0.090 / 0.220
G24     247.1          35.1               13.8 +/-    0.86      21.9 +/-    0.86  0.070 / 0.250
G25     317.0          16.8               10.3 +/-    3.41      24.6 +/-    3.41  0.060 / 0.280