PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/12-21:12:50
G01     285.6          40.9               10.5 +/-    1.70      15.1 +/-    1.70  0.050 / 0.090
G03     313.2          20.1               10.7 +/-    2.15      23.4 +/-    2.15  0.050 / 0.080
G10     122.7          26.2               13.7 +/-    0.79      26.1 +/-    0.79  0.050 / 0.080
G11     261.5          25.0               13.0 +/-    1.82      25.5 +/-    1.82  0.050 / 0.090
G14     30.2           56.3                8.6 +/-    0.63      10.1 +/-    0.63  0.050 / 0.150
G22     314.2          41.2               10.3 +/-    2.05      14.7 +/-    2.05  0.060 / 0.110
G25     62.4           18.7               10.8 +/-    0.81      24.6 +/-    0.81  0.020 / 0.030
G26     156.0          15.4               16.2 +/-    2.49      40.0 +/-    2.49  0.020 / 0.030
G31     117.1          80.8               12.9 +/-    0.87      13.1 +/-    0.87  0.040 / 0.070
G32     54.0           40.2               10.3 +/-    0.60      14.9 +/-    0.60  0.040 / 0.070