PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-15:13:10
G08     320.3          11.6                0.8 +/-   19.15       2.1 +/-   19.15  0.070 / 0.090
G10     307.8          55.6                5.9 +/-    0.73       7.0 +/-    0.73  0.060 / 0.090
G14     211.8          12.4                3.5 +/-   18.79       9.3 +/-   18.79  0.120 / 0.370
G15     45.3           20.0                4.3 +/-    1.24       9.4 +/-    1.24  0.130 / 0.460
G20     13.1           63.8                6.2 +/-    0.42       6.8 +/-    0.42  0.040 / 0.040
G21     111.2          69.6                7.1 +/-    0.32       7.6 +/-    0.32  0.040 / 0.040
G24     93.7           28.5                7.6 +/-    1.13      13.6 +/-    1.13  0.070 / 0.120
G27     294.8          36.6                7.2 +/-    1.02      11.0 +/-    1.02  0.070 / 0.110
G32     211.9          38.7                7.3 +/-    1.39      10.9 +/-    1.39  0.200 / 0.410