PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-19:58:10
G01     317.5          21.1                8.5 +/-    3.57      18.2 +/-    3.57  0.210 / 0.270
G08     254.0          11.1               10.6 +/-   14.97      28.9 +/-   14.97  0.280 / 0.230
G10     85.2           51.6                8.0 +/-    0.96       9.9 +/-    0.96  0.350 / 0.410
G11     300.0          24.6                7.8 +/-    1.36      15.4 +/-    1.36  0.290 / 0.330
G14     310.7          71.1                8.0 +/-    0.48       8.4 +/-    0.48  0.040 / 0.050
G18     105.7          24.8                9.6 +/-    2.47      18.9 +/-    2.47  0.040 / 0.050
G22     302.4          12.7                8.6 +/-    3.28      22.5 +/-    3.28  0.040 / 0.020
G25     97.4           10.2               -1.5 +/-   41.29      -4.2 +/-   41.29  0.040 / 0.020
G31     177.0          44.8               10.8 +/-    1.17      14.6 +/-    1.17  0.200 / 0.230
G32     12.5           65.2                7.1 +/-    0.49       7.8 +/-    0.49  0.250 / 0.230