PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/09-20:42:30
G01     307.3          32.9                8.3 +/-    1.86      13.7 +/-    1.86  0.080 / 0.110
G10     105.6          40.9                9.6 +/-    0.70      13.7 +/-    0.70  0.120 / 0.140
G11     282.7          28.2                7.2 +/-    0.59      13.1 +/-    0.59  0.120 / 0.140
G14     357.0          66.9                8.5 +/-    0.42       9.2 +/-    0.42  0.070 / 0.130
G18     117.4          13.2               10.8 +/-    1.24      28.0 +/-    1.24  0.020 / 0.030
G22     309.4          24.9                8.4 +/-    1.30      16.5 +/-    1.30  0.030 / 0.030
G25     82.0           16.5               10.0 +/-    2.03      24.0 +/-    2.03  0.050 / 0.030
G31     170.9          63.1               11.3 +/-    0.42      12.6 +/-    0.42  0.030 / 0.020
G32     34.6           53.5                8.5 +/-    1.30      10.2 +/-    1.30  0.060 / 0.110