PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-18:58:10
G01     320.9          12.4              -19.8 +/-   18.45     -52.4 +/-   18.45  0.100 / 0.170
G08     265.9          17.9                9.7 +/-    1.30      22.5 +/-    1.30  0.080 / 0.150
G10     66.2           56.0                8.6 +/-    0.56      10.2 +/-    0.56  0.050 / 0.050
G11     313.0          15.2                5.9 +/-    1.61      14.6 +/-    1.61  0.040 / 0.070
G14     262.5          62.8                8.9 +/-    0.80       9.8 +/-    0.80  0.130 / 0.370
G20     98.4           32.9                8.6 +/-    0.85      14.2 +/-    0.85  0.160 / 0.430
G21     155.3          13.9                9.1 +/-    4.10      23.3 +/-    4.10  0.030 / 0.030
G27     230.5          15.3                9.0 +/-    2.54      22.2 +/-    2.54  0.030 / 0.040
G31     177.8          31.8                9.9 +/-    2.71      16.7 +/-    2.71  0.140 / 0.190
G32     349.6          73.2                9.8 +/-    0.43      10.2 +/-    0.43  0.160 / 0.280