PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/18-17:13:00
G01     320.1          16.1                8.4 +/-    4.17      20.3 +/-    4.17  0.150 / 0.130
G08     261.3          16.2               11.1 +/-    2.17      26.9 +/-    2.17  0.340 / 0.200
G10     72.7           54.0               10.5 +/-    0.81      12.7 +/-    0.81  0.040 / 0.060
G11     310.9          16.8                6.6 +/-    1.66      15.6 +/-    1.66  0.040 / 0.050
G14     272.1          66.0               13.1 +/-    0.57      14.2 +/-    0.57  0.040 / 0.030
G20     102.3          29.5               12.1 +/-    1.28      21.4 +/-    1.28  0.040 / 0.030
G27     227.5          12.7                8.9 +/-    4.67      23.4 +/-    4.67  0.220 / 0.500
G31     177.7          35.1               13.4 +/-    1.78      21.2 +/-    1.78  0.140 / 0.410
G32     0.7            70.5               10.6 +/-    0.53      11.2 +/-    0.53  0.050 / 0.100