PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/17-17:28:10
G01     317.3          21.6                5.4 +/-    2.82      11.5 +/-    2.82  0.110 / 0.280
G08     254.7          10.8                7.2 +/-    3.07      19.6 +/-    3.07  0.080 / 0.200
G10     86.2           51.1                6.9 +/-    0.63       8.6 +/-    0.63  0.040 / 0.070
G11     300.4          24.0                6.8 +/-    1.53      13.6 +/-    1.53  0.060 / 0.050
G14     309.8          70.8                4.8 +/-    0.83       5.0 +/-    0.83  0.130 / 0.340
G18     106.5          23.8                7.3 +/-    0.71      14.7 +/-    0.71  0.120 / 0.230
G22     302.9          14.0                6.1 +/-    2.30      15.5 +/-    2.30  0.110 / 0.200
G25     97.6           10.5              -13.1 +/-   31.58     -36.3 +/-   31.58  0.040 / 0.060
G31     175.3          46.8                7.3 +/-    1.27       9.6 +/-    1.27  0.050 / 0.050
G32     15.6           64.1                5.5 +/-    0.67       6.0 +/-    0.67  0.030 / 0.030