PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-15:12:40
G10     261.9          35.5                8.1 +/-    0.73      12.8 +/-    0.73  0.130 / 0.390
G13     44.4           21.6                6.0 +/-    2.19      12.7 +/-    2.19  0.130 / 0.380
G15     66.6           53.4                5.9 +/-    0.78       7.1 +/-    0.78  0.040 / 0.030
G16     285.2          13.4                4.4 +/-    1.86      11.3 +/-    1.86  0.040 / 0.030
G20     288.7          58.0                7.3 +/-    1.77       8.4 +/-    1.77  0.160 / 0.240
G21     0.0            70.1                6.0 +/-    0.53       6.3 +/-    0.53  0.160 / 0.300
G24     120.1          11.9               10.4 +/-    1.96      27.9 +/-    1.96  0.130 / 0.280
G27     321.5          12.8                1.1 +/-   12.06       2.8 +/-   12.06  0.110 / 0.260
G29     166.2          35.2                9.5 +/-    0.74      15.0 +/-    0.74  0.270 / 0.270