PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/08-15:12:30
G10     292.7          51.2                8.9 +/-    1.62      11.1 +/-    1.62  0.070 / 0.090
G15     46.3           28.7                2.3 +/-    1.02       4.2 +/-    1.02  0.090 / 0.090
G20     350.1          65.4                4.3 +/-    1.51       4.6 +/-    1.51  0.070 / 0.160
G21     81.4           75.5                7.5 +/-    1.05       7.8 +/-    1.05  0.080 / 0.160
G24     104.3          24.8                8.7 +/-    1.17      17.1 +/-    1.17  0.040 / 0.040
G27     305.3          32.4                6.1 +/-    1.23      10.2 +/-    1.23  0.040 / 0.050
G29     168.2          12.7                7.5 +/-    5.05      19.7 +/-    5.05  0.090 / 0.290
G32     207.9          29.1               10.3 +/-    3.32      18.3 +/-    3.32  0.070 / 0.260