PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-20:27:30
G01     318.9          18.7                9.1 +/-    1.21      20.7 +/-    1.21  0.050 / 0.040
G08     254.7          12.8                9.0 +/-    2.07      23.6 +/-    2.07  0.050 / 0.050
G10     81.3           52.2                7.9 +/-    1.08       9.7 +/-    1.08  0.120 / 0.280
G11     301.3          24.2                7.6 +/-    1.31      15.0 +/-    1.31  0.160 / 0.260
G14     300.1          71.1                7.5 +/-    0.36       7.8 +/-    0.36  0.120 / 0.180
G20     106.1          28.4               10.3 +/-    1.73      18.7 +/-    1.73  0.140 / 0.210
G31     177.7          41.0               10.3 +/-    1.13      14.8 +/-    1.13  0.030 / 0.030
G32     8.6            67.1                7.3 +/-    0.52       7.9 +/-    0.52  0.030 / 0.030