PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-09:12:50
G01     309.3          32.4                3.0 +/-    1.30       4.9 +/-    1.30  0.130 / 0.150
G10     103.2          40.7                3.0 +/-    0.69       4.3 +/-    0.69  0.150 / 0.140
G11     284.1          27.8                3.0 +/-    1.96       5.4 +/-    1.96  0.100 / 0.130
G14     351.7          68.2                2.5 +/-    1.00       2.7 +/-    1.00  0.090 / 0.110
G18     279.5          50.4                2.8 +/-    1.37       3.6 +/-    1.37  0.040 / 0.050
G20     118.9          16.0                2.9 +/-    1.61       7.0 +/-    1.61  0.050 / 0.040
G22     309.8          26.7                2.8 +/-    1.61       5.3 +/-    1.61  0.040 / 0.050
G25     84.9           15.3                2.8 +/-    2.75       6.9 +/-    2.75  0.040 / 0.040
G31     168.5          61.7                4.3 +/-    1.19       4.8 +/-    1.19  0.080 / 0.150
G32     27.8           57.7                3.5 +/-    1.88       4.0 +/-    1.88  0.100 / 0.150