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                7.0 +/-    1.50      10.0 +/-    1.50  0.070 / 0.120
G03     313.5          22.6                4.0 +/-    2.43       8.3 +/-    2.43  0.080 / 0.130
G10     122.1          26.6               10.5 +/-    1.26      19.8 +/-    1.26  0.030 / 0.030
G11     264.9          24.8                9.3 +/-    1.32      18.2 +/-    1.32  0.030 / 0.030
G14     26.3           58.0                6.6 +/-    0.64       7.6 +/-    0.64  0.050 / 0.080
G22     314.5          42.8                7.0 +/-    1.26       9.7 +/-    1.26  0.070 / 0.080
G25     64.2           19.1                8.2 +/-    0.86      18.5 +/-    0.86  0.050 / 0.060
G26     154.3          16.0               12.7 +/-    1.18      30.8 +/-    1.18  0.060 / 0.060
G31     105.0          79.8                8.9 +/-    0.51       9.1 +/-    0.51  0.060 / 0.110
G32     54.5           39.3                7.6 +/-    0.62      11.2 +/-    0.62  0.070 / 0.100