PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/13-23:58:00
G01     318.8          19.7                6.4 +/-    1.21      14.2 +/-    1.21  0.130 / 0.250
G08     260.4          13.5                8.4 +/-    3.22      21.7 +/-    3.22  0.160 / 0.260
G10     80.9           51.5               10.1 +/-    1.09      12.5 +/-    1.09  0.040 / 0.050
G11     304.4          21.7                8.8 +/-    2.07      18.5 +/-    2.07  0.040 / 0.050
G14     289.8          69.5                7.7 +/-    0.49       8.2 +/-    0.49  0.110 / 0.090
G18     304.6          41.0                8.1 +/-    1.38      11.5 +/-    1.38  0.050 / 0.090
G20     106.0          28.1               11.2 +/-    0.44      20.5 +/-    0.44  0.040 / 0.030
G31     174.5          43.0               10.8 +/-    0.85      15.0 +/-    0.85  0.030 / 0.030
G32     8.2            67.5                7.5 +/-    0.95       8.0 +/-    0.95  0.130 / 0.300