PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/23-17:43:00
G08     263.5          17.6                9.0 +/-    1.28      21.1 +/-    1.28  0.240 / 0.670
G10     65.3           57.0                8.9 +/-    1.19      10.4 +/-    1.19  0.260 / 0.430
G11     309.4          19.3                6.7 +/-    0.92      15.0 +/-    0.92  0.070 / 0.050
G14     272.1          68.0                2.9 +/-    0.58       3.1 +/-    0.58  0.070 / 0.050
G18     309.9          36.5                8.5 +/-    0.85      13.1 +/-    0.85  0.030 / 0.020
G20     97.3           35.2                7.7 +/-    0.73      12.2 +/-    0.73  0.030 / 0.020
G21     154.1          10.4               10.2 +/-    2.17      28.2 +/-    2.17  0.110 / 0.150
G27     232.9          15.4               10.0 +/-    3.47      24.6 +/-    3.47  0.090 / 0.250
G31     180.9          28.8               10.7 +/-    1.85      19.2 +/-    1.85  0.120 / 0.250
G32     340.6          73.6                8.6 +/-    0.42       9.0 +/-    0.42  0.160 / 0.230