PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/16-10:58:00
G01     308.4          33.0                5.5 +/-    0.90       9.0 +/-    0.90  0.090 / 0.110
G10     104.5          39.9                6.0 +/-    0.67       8.7 +/-    0.67  0.060 / 0.100
G11     282.5          28.0                5.4 +/-    1.31       9.8 +/-    1.31  0.060 / 0.050
G14     355.3          67.6                5.0 +/-    0.80       5.4 +/-    0.80  0.060 / 0.050
G18     276.8          50.9                5.3 +/-    1.42       6.6 +/-    1.42  0.040 / 0.050
G20     119.6          15.0                5.3 +/-    2.12      13.1 +/-    2.12  0.040 / 0.050
G22     310.7          29.8                4.1 +/-    2.24       7.1 +/-    2.24  0.040 / 0.030
G25     83.0           15.6                3.2 +/-    3.06       7.9 +/-    3.06  0.040 / 0.040
G31     169.2          62.4                7.6 +/-    0.49       8.5 +/-    0.49  0.080 / 0.110
G32     26.7           58.2                5.4 +/-    1.22       6.2 +/-    1.22  0.110 / 0.120