PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-18:12:30
G01     313.5          29.1               21.7 +/-    1.17      38.7 +/-    1.17  0.180 / 0.300
G10     95.2           44.6                9.4 +/-    1.26      12.8 +/-    1.26  0.210 / 0.220
G11     296.6          23.8                7.9 +/-    2.09      15.9 +/-    2.09  0.040 / 0.040
G14     316.7          70.1                8.3 +/-    0.74       8.8 +/-    0.74  0.040 / 0.040
G20     114.9          18.2               10.5 +/-    2.00      24.2 +/-    2.00  0.040 / 0.070
G22     306.0          17.1                8.6 +/-    3.59      20.4 +/-    3.59  0.050 / 0.050
G25     91.8           12.5               11.7 +/-    1.70      30.9 +/-    1.70  0.140 / 0.240
G31     173.1          53.0               10.0 +/-    0.75      12.2 +/-    0.75  0.110 / 0.200
G32     26.8           58.6                7.4 +/-    0.83       8.5 +/-    0.83  0.030 / 0.040