PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/29-03:12:50
G01     318.5          20.2                4.7 +/-    1.27      10.3 +/-    1.27  0.150 / 0.000
G08     260.0          12.9                7.4 +/-    2.78      19.3 +/-    2.78  0.170 / 0.280
G10     82.4           51.0                7.4 +/-    0.79       9.2 +/-    0.79  0.140 / 0.310
G11     302.5          23.0                5.7 +/-    1.45      11.7 +/-    1.45  0.210 / 0.380
G14     297.2          70.7                5.7 +/-    0.64       6.0 +/-    0.64  0.040 / 0.050
G18     303.3          42.0                6.1 +/-    1.32       8.6 +/-    1.32  0.050 / 0.050
G20     106.5          28.5                8.0 +/-    1.12      14.4 +/-    1.12  0.050 / 0.080
G22     301.5          10.8               -0.3 +/-    6.38      -0.8 +/-    6.38  0.050 / 0.080
G31     174.1          44.3                8.0 +/-    0.45      10.9 +/-    0.45  0.200 / 0.310
G32     7.4            67.4                4.6 +/-    0.53       5.0 +/-    0.53  0.150 / 0.280