PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-16:42:40
G08     315.3          16.2                8.1 +/-    1.45      19.5 +/-    1.45  0.040 / 0.050
G10     316.4          57.2                7.6 +/-    0.63       8.9 +/-    0.63  0.050 / 0.050
G14     213.6          22.8               10.8 +/-    0.95      22.3 +/-    0.95  0.030 / 0.040
G15     45.8           19.4                6.0 +/-    0.73      13.5 +/-    0.73  0.050 / 0.040
G20     19.4           63.4                7.4 +/-    0.46       8.1 +/-    0.46  0.110 / 0.280
G21     123.9          62.4                9.5 +/-    0.70      10.6 +/-    0.70  0.150 / 0.310
G24     79.5           28.1                7.4 +/-    0.58      13.5 +/-    0.58  0.150 / 0.260
G27     289.5          36.4                8.3 +/-    0.79      12.8 +/-    0.79  0.140 / 0.240
G32     216.4          42.6               10.1 +/-    0.63      14.2 +/-    0.63  0.320 / 0.350