PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/13-17:43:10
G08     281.7          23.3                7.7 +/-    1.63      15.7 +/-    1.63  0.080 / 0.140
G10     28.9           62.4                5.8 +/-    0.56       6.4 +/-    0.56  0.060 / 0.160
G14     239.3          55.0                7.4 +/-    0.82       8.8 +/-    0.82  0.030 / 0.030
G18     316.9          20.5                5.6 +/-    1.39      12.1 +/-    1.39  0.030 / 0.060
G20     77.5           46.9                6.7 +/-    0.67       8.8 +/-    0.67  0.070 / 0.060
G21     149.9          28.3                7.8 +/-    1.20      14.2 +/-    1.20  0.070 / 0.070
G24     45.9           17.4                5.6 +/-    0.99      13.0 +/-    0.99  0.090 / 0.130
G27     248.0          26.9                7.7 +/-    3.16      14.4 +/-    3.16  0.080 / 0.110
G31     184.0          11.7                3.7 +/-   19.04       9.9 +/-   19.04  0.100 / 0.150
G32     268.4          73.3                7.7 +/-    0.45       8.0 +/-    0.45  0.100 / 0.130