PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/18-17:43:00
G10     260.3          35.6               10.0 +/-    0.96      15.7 +/-    0.96  0.110 / 0.170
G13     45.1           22.1                7.6 +/-    0.83      15.9 +/-    0.83  0.090 / 0.210
G15     66.3           52.3                8.9 +/-    0.32      11.0 +/-    0.32  0.050 / 0.060
G16     284.8          14.6                7.6 +/-    3.29      19.0 +/-    3.29  0.050 / 0.050
G20     288.3          58.4                9.8 +/-    0.94      11.3 +/-    0.94  0.130 / 0.400
G21     348.7          66.8                8.5 +/-    0.77       9.1 +/-    0.77  0.130 / 0.440
G24     127.8          10.0              -15.7 +/-   28.51     -43.8 +/-   28.51  0.200 / 0.560
G26     258.9          11.1                8.3 +/-    2.03      22.7 +/-    2.03  0.040 / 0.080
G27     321.3          13.2                8.4 +/-    3.53      21.9 +/-    3.53  0.030 / 0.090
G29     166.3          39.6                9.7 +/-    0.53      14.2 +/-    0.53  0.080 / 0.090