PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/31-11:58:00
G01     310.4          31.2                6.5 +/-    0.84      11.1 +/-    0.84  0.130 / 0.110
G10     101.8          41.8                4.7 +/-    0.38       6.7 +/-    0.38  0.090 / 0.090
G11     285.2          28.0                4.1 +/-    2.03       7.5 +/-    2.03  0.040 / 0.050
G14     349.5          68.7                6.1 +/-    1.27       6.5 +/-    1.27  0.040 / 0.040
G18     280.5          50.6                5.8 +/-    0.56       7.2 +/-    0.56  0.030 / 0.030
G20     118.0          16.9                3.5 +/-    1.80       8.4 +/-    1.80  0.040 / 0.020
G22     309.5          26.7                3.8 +/-    1.74       7.2 +/-    1.74  0.030 / 0.040
G25     85.0           14.8                3.0 +/-    3.85       7.5 +/-    3.85  0.040 / 0.040
G31     171.8          59.1                8.0 +/-    0.40       9.2 +/-    0.40  0.100 / 0.130
G32     24.5           59.3                5.7 +/-    0.96       6.5 +/-    0.96  0.160 / 0.130