PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/25-20:43:10
G08     316.3          15.0               10.1 +/-    2.93      25.2 +/-    2.93  0.030 / 0.050
G10     313.2          56.1               11.9 +/-    0.70      14.0 +/-    0.70  0.030 / 0.050
G14     213.7          22.8               20.0 +/-    1.03      41.1 +/-    1.03  0.050 / 0.090
G15     45.6           18.3               10.6 +/-    0.89      24.4 +/-    0.89  0.060 / 0.090
G18     22.8           62.8               12.0 +/-    0.75      13.3 +/-    0.75  0.120 / 0.460
G20     78.9           11.9               13.2 +/-    2.05      35.3 +/-    2.05  0.130 / 0.460
G21     122.7          62.9               16.2 +/-    0.58      18.0 +/-    0.58  0.070 / 0.110
G24     86.9           29.8               13.9 +/-    0.93      24.5 +/-    0.93  0.070 / 0.130
G27     285.8          37.9               11.9 +/-    1.30      17.9 +/-    1.30  0.100 / 0.260
G32     216.7          40.0               17.9 +/-    0.82      26.0 +/-    0.82  0.100 / 0.350