PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-19:27:40
G01     221.1          11.7               10.1 +/-    1.07      27.1 +/-    1.07  0.030 / 0.050
G03     256.1          71.1                7.9 +/-    0.63       8.3 +/-    0.63  0.030 / 0.040
G09     298.3          11.5               -1.5 +/-   30.29      -4.0 +/-   30.29  0.190 / 0.180
G14     92.9           20.5                8.6 +/-    1.70      18.8 +/-    1.70  0.110 / 0.200
G16     140.5          52.2               11.1 +/-    0.24      13.6 +/-    0.24  0.170 / 0.280
G22     200.5          63.1                9.7 +/-    0.60      10.7 +/-    0.60  0.150 / 0.250
G23     313.8          43.8                8.3 +/-    0.68      11.3 +/-    0.68  0.030 / 0.040
G26     82.5           54.2                9.2 +/-    0.81      11.0 +/-    0.81  0.030 / 0.060
G31     48.5           25.5                7.5 +/-    2.68      14.4 +/-    2.68  0.030 / 0.040