PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/13-14:42:40
G01     316.9          23.1                5.0 +/-    1.65      10.3 +/-    1.65  0.030 / 0.040
G10     88.7           48.9                8.0 +/-    0.68      10.2 +/-    0.68  0.040 / 0.040
G11     296.3          26.1                7.1 +/-    1.35      13.6 +/-    1.35  0.120 / 0.220
G14     318.7          71.6                6.5 +/-    0.82       6.8 +/-    0.82  0.120 / 0.210
G18     295.1          47.4                7.3 +/-    8.39       9.6 +/-    8.39  0.170 / 0.130
G20     110.3          24.6                8.8 +/-    1.84      17.4 +/-    1.84  0.150 / 0.120
G22     304.2          16.2                3.0 +/-    2.62       7.3 +/-    2.62  0.030 / 0.020
G25     93.2           10.6               -9.8 +/-   32.16     -27.1 +/-   32.16  0.030 / 0.030
G31     177.9          45.3                9.1 +/-    0.78      12.3 +/-    0.78  0.050 / 0.040
G32     11.6           65.3                6.3 +/-    0.66       6.8 +/-    0.66  0.050 / 0.040