PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/04-21:12:40
G01     303.3          35.5               16.0 +/-    1.98      25.2 +/-    1.98  0.080 / 0.110
G10     110.0          37.7               16.5 +/-    0.62      24.9 +/-    0.62  0.090 / 0.090
G11     277.6          28.2               15.5 +/-    0.77      28.2 +/-    0.77  0.020 / 0.020
G14     6.4            64.7               14.6 +/-    0.37      16.0 +/-    0.37  0.040 / 0.020
G18     120.1          10.0               17.5 +/-    1.48      48.9 +/-    1.48  0.070 / 0.120
G22     310.8          28.4               14.3 +/-    1.69      26.0 +/-    1.69  0.100 / 0.120
G25     77.5           17.6               16.8 +/-    2.24      39.2 +/-    2.24  0.030 / 0.040
G31     167.7          67.8               16.6 +/-    0.50      17.8 +/-    0.50  0.040 / 0.040
G32     39.1           50.6               14.4 +/-    1.73      18.1 +/-    1.73  0.080 / 0.090