PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-18:12:40
G08     312.6          18.0                8.2 +/-    2.10      19.0 +/-    2.10  0.170 / 0.190
G10     322.8          58.5               10.7 +/-    0.66      12.4 +/-    0.66  0.190 / 0.280
G14     215.2          26.0               12.8 +/-    1.94      24.4 +/-    1.94  0.080 / 0.070
G15     46.1           17.0                8.5 +/-    2.04      20.0 +/-    2.04  0.060 / 0.080
G20     27.1           62.3               12.4 +/-    1.71      13.9 +/-    1.71  0.030 / 0.050
G21     128.5          60.0               12.9 +/-    0.40      14.7 +/-    0.40  0.040 / 0.050
G24     75.9           28.5               10.7 +/-    1.57      19.3 +/-    1.57  0.070 / 0.070
G27     284.4          36.9               20.3 +/-    0.93      31.1 +/-    0.93  0.060 / 0.080
G32     218.8          46.8               12.2 +/-    1.41      16.1 +/-    1.41  0.150 / 0.200