PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/25-21:57:50
G08     313.0          17.5                9.8 +/-    1.25      22.9 +/-    1.25  0.060 / 0.070
G10     322.2          58.3                9.7 +/-    0.93      11.2 +/-    0.93  0.070 / 0.090
G14     215.4          25.1               13.8 +/-    2.04      26.8 +/-    2.04  0.080 / 0.290
G15     46.1           19.5               -0.6 +/-   21.09      -1.3 +/-   21.09  0.090 / 0.260
G20     26.7           62.4               -2.6 +/-   18.29      -2.9 +/-   18.29  0.050 / 0.060
G21     128.0          62.1               -3.9 +/-   18.58      -4.4 +/-   18.58  0.040 / 0.060
G24     77.5           29.0                9.5 +/-    1.49      16.9 +/-    1.49  0.080 / 0.170
G27     283.5          37.3               11.1 +/-    0.83      17.0 +/-    0.83  0.090 / 0.180
G32     218.7          47.9               12.8 +/-    2.21      16.6 +/-    2.21  0.050 / 0.090