PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/29-11:28:00
G01     319.4          17.8                4.3 +/-    2.25      10.1 +/-    2.25  0.140 / 0.190
G08     257.3          13.8                3.5 +/-    2.19       9.0 +/-    2.19  0.130 / 0.190
G10     79.1           52.6                5.3 +/-    0.61       6.5 +/-    0.61  0.020 / 0.020
G11     303.0          23.3                2.5 +/-    1.10       5.0 +/-    1.10  0.030 / 0.020
G14     296.2          71.2                4.3 +/-    0.38       4.5 +/-    0.38  0.040 / 0.040
G20     104.8          29.4                6.5 +/-    1.32      11.4 +/-    1.32  0.040 / 0.040
G22     301.6          13.6                1.1 +/-    4.88       2.7 +/-    4.88  0.040 / 0.040
G31     177.5          39.6                4.7 +/-    1.17       6.8 +/-    1.17  0.040 / 0.040
G32     351.9          70.5                4.6 +/-    0.73       4.8 +/-    0.73  0.130 / 0.270