PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/16-20:12:40
G01     307.8          32.5                7.5 +/-    1.12      12.5 +/-    1.12  0.080 / 0.150
G10     104.9          41.3                9.2 +/-    0.68      13.0 +/-    0.68  0.110 / 0.160
G11     283.7          28.1                7.4 +/-    1.50      13.6 +/-    1.50  0.060 / 0.110
G14     355.2          67.2                5.8 +/-    0.76       6.2 +/-    0.76  0.060 / 0.110
G18     117.1          13.5               10.5 +/-    2.19      27.0 +/-    2.19  0.060 / 0.220
G22     309.2          24.6                6.8 +/-    1.48      13.5 +/-    1.48  0.070 / 0.220
G25     82.8           16.3                8.4 +/-    1.03      20.3 +/-    1.03  0.040 / 0.040
G31     170.7          62.7                9.6 +/-    0.75      10.6 +/-    0.75  0.030 / 0.050
G32     34.1           53.8                5.9 +/-    0.44       7.1 +/-    0.44  0.040 / 0.040