PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/19-17:13:10
G01     319.5          18.0                8.4 +/-    1.83      19.4 +/-    1.83  0.190 / 0.360
G08     259.1          15.1                9.3 +/-    1.87      23.1 +/-    1.87  0.200 / 0.430
G10     76.3           52.8                8.4 +/-    0.61      10.2 +/-    0.61  0.040 / 0.040
G14     277.7          67.2                9.1 +/-    1.05       9.8 +/-    1.05  0.040 / 0.050
G20     104.3          27.9               10.5 +/-    1.03      19.3 +/-    1.03  0.130 / 0.310
G27     225.9          11.2               11.0 +/-    1.17      30.0 +/-    1.17  0.130 / 0.260
G31     177.3          37.6               10.7 +/-    1.17      16.3 +/-    1.17  0.040 / 0.030
G32     5.7            68.9                7.4 +/-    0.40       7.9 +/-    0.40  0.040 / 0.030