PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/19-16:28:10
G01     286.8          40.8                0.9 +/-    1.00       1.2 +/-    1.00  0.030 / 0.070
G03     313.5          22.6                7.0 +/-    1.81      14.5 +/-    1.81  0.040 / 0.060
G10     122.1          26.6                9.8 +/-    1.87      18.5 +/-    1.87  0.030 / 0.020
G11     264.9          24.8                8.6 +/-    5.75      16.8 +/-    5.75  0.020 / 0.020
G14     26.3           58.0                7.8 +/-    1.48       9.0 +/-    1.48  0.090 / 0.120
G22     314.5          42.8                7.7 +/-    0.77      10.7 +/-    0.77  0.090 / 0.140
G25     64.2           19.1                7.6 +/-    2.22      17.0 +/-    2.22  0.060 / 0.060
G26     154.3          16.0               12.8 +/-    3.53      31.0 +/-    3.53  0.060 / 0.050
G31     105.0          79.8                8.8 +/-    0.58       8.9 +/-    0.58  0.060 / 0.070
G32     54.5           39.3                7.3 +/-    1.03      10.7 +/-    1.03  0.050 / 0.080