PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-18:12:40
G08     314.0          17.1                8.5 +/-    2.13      20.1 +/-    2.13  0.210 / 0.270
G10     319.4          57.8                7.1 +/-    0.62       8.3 +/-    0.62  0.200 / 0.280
G14     214.4          24.3               10.4 +/-    1.26      20.7 +/-    1.26  0.180 / 0.300
G15     45.9           18.6                7.1 +/-    1.60      16.2 +/-    1.60  0.150 / 0.220
G20     23.2           62.9                7.2 +/-    1.24       8.0 +/-    1.24  0.050 / 0.080
G21     126.1          61.8               10.5 +/-    0.65      11.7 +/-    0.65  0.060 / 0.080
G24     78.0           28.4                6.9 +/-    0.99      12.5 +/-    0.99  0.040 / 0.040
G27     286.8          36.8                9.6 +/-    0.76      14.7 +/-    0.76  0.040 / 0.040
G32     217.5          45.0                9.9 +/-    1.00      13.4 +/-    1.00  0.030 / 0.030