PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-10:12:50
G01     312.6          29.2                4.4 +/-    1.64       7.8 +/-    1.64  0.120 / 0.120
G10     98.3           43.8                3.8 +/-    0.86       5.3 +/-    0.86  0.140 / 0.130
G11     288.8          27.5                5.6 +/-    3.09      10.3 +/-    3.09  0.040 / 0.040
G14     340.9          69.9                3.0 +/-    0.42       3.2 +/-    0.42  0.050 / 0.040
G18     286.2          49.5                4.7 +/-    0.86       6.0 +/-    0.86  0.060 / 0.130
G20     115.9          19.2                3.6 +/-    1.61       8.1 +/-    1.61  0.130 / 0.100
G22     308.3          24.3                3.8 +/-    1.18       7.6 +/-    1.18  0.040 / 0.040
G25     88.7           13.8                3.1 +/-    2.26       7.9 +/-    2.26  0.040 / 0.040
G31     172.0          56.3                5.8 +/-    1.10       6.8 +/-    1.10  0.060 / 0.160
G32     20.5           61.3                3.4 +/-    0.75       3.9 +/-    0.75  0.060 / 0.140