PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/18-21:12:50
G10     273.7          42.1               10.0 +/-    0.80      14.1 +/-    0.80  0.090 / 0.150
G13     39.5           13.4                7.4 +/-    1.12      19.0 +/-    1.12  0.090 / 0.160
G15     56.8           49.1               10.4 +/-    0.37      13.3 +/-    0.37  0.050 / 0.050
G16     273.0          10.0                7.2 +/-    2.37      20.0 +/-    2.37  0.050 / 0.040
G20     309.5          62.6                8.8 +/-    0.88       9.7 +/-    0.88  0.100 / 0.770
G21     20.3           75.1               10.5 +/-    0.80      10.8 +/-    0.80  0.110 / 0.610
G24     112.8          17.8               12.1 +/-    1.77      28.2 +/-    1.77  0.090 / 0.300
G27     316.2          22.4                8.3 +/-    1.31      17.3 +/-    1.31  0.080 / 0.260
G29     168.5          25.6               12.4 +/-    0.76      23.9 +/-    0.76  0.110 / 0.280
G32     204.9          15.5               13.6 +/-    2.30      33.5 +/-    2.30  0.120 / 0.290