PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-19:12:40
G01     320.8          13.1              -17.4 +/-   24.48     -45.2 +/-   24.48  0.240 / 0.300
G08     265.2          17.5               12.1 +/-    1.72      28.3 +/-    1.72  0.210 / 0.240
G10     67.5           55.6               25.8 +/-    0.88      30.6 +/-    0.88  0.050 / 0.050
G14     264.1          63.4               11.0 +/-    1.32      12.2 +/-    1.32  0.040 / 0.060
G20     99.1           32.5                9.1 +/-    1.06      15.2 +/-    1.06  0.130 / 0.270
G21     155.5          13.2                9.3 +/-    2.72      24.1 +/-    2.72  0.120 / 0.260
G27     229.9          14.8               12.0 +/-    2.07      30.0 +/-    2.07  0.120 / 0.360
G31     177.6          32.7               12.2 +/-    1.42      20.3 +/-    1.42  0.140 / 0.370
G32     351.7          72.7                9.8 +/-    0.54      10.2 +/-    0.54  0.030 / 0.030