PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-19:28:10
G02     62.3           30.9               15.0 +/-    1.24      25.8 +/-    1.24  0.120 / 0.080
G05     56.8           62.8               15.1 +/-    0.38      16.8 +/-    0.38  0.110 / 0.080
G12     184.5          28.4               17.4 +/-    1.15      31.5 +/-    1.15  0.050 / 0.110
G13     127.0          17.7               18.1 +/-    2.65      42.0 +/-    2.65  0.080 / 0.110
G15     162.1          14.7               20.7 +/-    1.71      51.9 +/-    1.71  0.090 / 0.290
G20     209.7          65.1               18.2 +/-    0.69      19.8 +/-    0.69  0.160 / 0.330
G21     274.6          20.6               16.2 +/-    1.17      35.2 +/-    1.17  0.030 / 0.030
G25     226.2          47.9               17.4 +/-    2.44      22.6 +/-    2.44  0.030 / 0.030
G29     334.3          61.9               15.2 +/-    0.74      17.0 +/-    0.74  0.030 / 0.050