PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/21-18:57:50
G01     320.7          13.6                4.2 +/-   35.20      10.9 +/-   35.20  0.040 / 0.040
G08     264.5          17.3               10.4 +/-    3.75      24.6 +/-    3.75  0.070 / 0.040
G10     68.5           55.3                6.6 +/-    1.40       7.8 +/-    1.40  0.040 / 0.070
G11     312.0          16.1                7.0 +/-   10.70      17.1 +/-   10.70  0.050 / 0.070
G14     265.2          63.6               10.2 +/-    1.82      11.2 +/-    1.82  0.130 / 0.300
G20     99.7           31.9               10.5 +/-    1.15      17.7 +/-    1.15  0.110 / 0.280
G21     155.5          12.6                8.7 +/-    1.43      22.9 +/-    1.43  0.050 / 0.080
G27     229.4          14.4               10.8 +/-    3.86      27.3 +/-    3.86  0.050 / 0.070
G31     177.5          33.2                8.5 +/-    1.38      13.9 +/-    1.38  0.120 / 0.340
G32     353.6          72.3               12.7 +/-    1.49      13.3 +/-    1.49  0.150 / 0.320