PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-20:57:50
G08     318.9          12.5               10.0 +/-    1.63      26.3 +/-    1.63  0.060 / 0.090
G10     316.9          57.6               13.7 +/-    0.77      15.9 +/-    0.77  0.060 / 0.080
G14     213.5          18.9               15.7 +/-    1.43      35.5 +/-    1.43  0.030 / 0.040
G15     45.7           18.5                8.8 +/-    1.12      20.0 +/-    1.12  0.040 / 0.040
G20     20.3           63.1               12.9 +/-    0.65      14.3 +/-    0.65  0.140 / 0.470
G21     121.0          66.9               14.3 +/-    0.53      15.4 +/-    0.53  0.190 / 0.440
G24     87.2           29.9               11.4 +/-    1.15      20.0 +/-    1.15  0.180 / 0.260
G27     288.2          37.6               11.9 +/-    1.42      18.0 +/-    1.42  0.150 / 0.300
G32     215.3          43.1               14.7 +/-    1.27      20.4 +/-    1.27  0.070 / 0.130