PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/16-22:12:50
G01     242.3          30.3                9.2 +/-    0.77      16.1 +/-    0.77  0.030 / 0.040
G03     313.0          51.8                4.6 +/-    0.64       5.7 +/-    0.64  0.030 / 0.030
G14     69.0           35.6                5.4 +/-    0.41       8.4 +/-    0.41  0.110 / 0.170
G16     162.1          24.1               10.0 +/-    2.28      20.0 +/-    2.28  0.090 / 0.150
G22     289.2          72.2                7.2 +/-    0.56       7.5 +/-    0.56  0.070 / 0.250
G23     292.6          23.9                7.9 +/-    0.68      15.9 +/-    0.68  0.060 / 0.240
G26     130.2          44.2               10.0 +/-    1.20      13.6 +/-    1.20  0.070 / 0.150
G31     39.8           51.9                4.7 +/-    0.71       5.8 +/-    0.71  0.060 / 0.140
G32     84.0           18.5                6.7 +/-    1.04      15.2 +/-    1.04  0.020 / 0.040