PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/27-19:27:50
G08     318.8          13.2                7.6 +/-    1.87      19.8 +/-    1.87  0.060 / 0.090
G10     307.7          55.1                6.7 +/-    1.32       8.0 +/-    1.32  0.070 / 0.100
G14     212.0          17.6               10.9 +/-    1.85      25.5 +/-    1.85  0.030 / 0.050
G15     45.8           25.4                8.7 +/-    1.07      16.7 +/-    1.07  0.030 / 0.040
G20     8.0            64.6                8.0 +/-    0.60       8.8 +/-    0.60  0.090 / 0.310
G21     114.5          68.4                9.4 +/-    0.55      10.0 +/-    0.55  0.210 / 0.430
G24     86.5           27.8                8.9 +/-    0.78      16.2 +/-    0.78  0.120 / 0.260
G27     294.8          35.6               10.1 +/-    1.37      15.9 +/-    1.37  0.120 / 0.250
G32     213.4          38.7                9.5 +/-    1.70      14.1 +/-    1.70  0.070 / 0.140