PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-12:58:10
G01     319.3          18.0                3.7 +/-    2.05       8.4 +/-    2.05  0.050 / 0.050
G08     256.5          13.6                5.9 +/-    1.59      15.2 +/-    1.59  0.050 / 0.050
G10     79.7           52.5                5.1 +/-    0.91       6.2 +/-    0.91  0.040 / 0.040
G11     302.5          23.6                4.4 +/-    1.11       9.0 +/-    1.11  0.040 / 0.040
G14     297.8          71.3                5.9 +/-    0.92       6.2 +/-    0.92  0.120 / 0.210
G18     303.0          42.9                5.7 +/-    0.76       7.9 +/-    0.76  0.170 / 0.280
G20     105.2          29.1                5.3 +/-    1.15       9.5 +/-    1.15  0.090 / 0.160
G31     178.2          39.2                7.5 +/-    0.69      11.0 +/-    0.69  0.100 / 0.140
G32     356.0          69.9                5.4 +/-    0.38       5.7 +/-    0.38  0.040 / 0.090