PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/16-17:57:40
G08     301.9          21.9                8.1 +/-    1.32      17.0 +/-    1.32  0.060 / 0.090
G10     354.0          62.2                6.1 +/-    0.41       6.8 +/-    0.41  0.070 / 0.100
G14     222.7          34.0               12.5 +/-    1.54      20.3 +/-    1.54  0.050 / 0.060
G20     56.6           54.5                7.4 +/-    0.67       8.9 +/-    0.67  0.040 / 0.070
G21     141.8          48.5               10.3 +/-    0.97      13.3 +/-    0.97  0.070 / 0.150
G24     65.7           29.3                7.5 +/-    0.50      13.3 +/-    0.50  0.070 / 0.130
G27     263.8          35.8               10.6 +/-    1.08      16.6 +/-    1.08  0.030 / 0.030
G32     231.9          62.3               10.8 +/-    0.73      12.0 +/-    0.73  0.030 / 0.030