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                8.8 +/-    2.27      20.9 +/-    2.27  0.070 / 0.080
G10     319.4          57.8                8.7 +/-    0.59      10.1 +/-    0.59  0.060 / 0.080
G14     214.4          24.3               12.5 +/-    1.16      24.8 +/-    1.16  0.050 / 0.090
G15     45.9           18.6                6.2 +/-    0.85      14.1 +/-    0.85  0.060 / 0.080
G20     23.2           62.9                7.1 +/-    0.42       7.9 +/-    0.42  0.130 / 0.280
G21     126.1          61.8               10.4 +/-    0.84      11.6 +/-    0.84  0.110 / 0.210
G24     78.0           28.4                8.1 +/-    0.82      14.6 +/-    0.82  0.040 / 0.040
G27     286.8          36.8                8.0 +/-    1.60      12.3 +/-    1.60  0.030 / 0.050
G32     217.5          45.0               11.9 +/-    0.98      16.1 +/-    0.98  0.110 / 0.180