PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-16:27:50
G08     313.5          17.4                5.3 +/-    1.56      12.5 +/-    1.56  0.040 / 0.030
G10     320.8          58.1                6.1 +/-    0.73       7.1 +/-    0.73  0.040 / 0.040
G14     214.6          25.2               10.4 +/-    2.30      20.3 +/-    2.30  0.040 / 0.030
G15     46.0           17.1                4.2 +/-    0.37       9.9 +/-    0.37  0.040 / 0.040
G20     24.7           62.7                5.5 +/-    0.75       6.1 +/-    0.75  0.050 / 0.090
G21     127.3          59.9                7.1 +/-    0.86       8.1 +/-    0.86  0.060 / 0.090
G24     77.0           28.3                4.4 +/-    0.56       8.1 +/-    0.56  0.090 / 0.230
G27     286.5          36.7                6.3 +/-    1.85       9.7 +/-    1.85  0.100 / 0.180
G32     218.0          44.9                8.7 +/-    1.58      11.7 +/-    1.58  0.100 / 0.210