PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/09-17:42:50
G10     249.0          24.6               13.0 +/-    0.76      25.6 +/-    0.76  0.050 / 0.030
G13     56.4           32.1               10.2 +/-    1.31      17.1 +/-    1.31  0.050 / 0.030
G15     88.6           57.1               11.9 +/-    1.54      13.8 +/-    1.54  0.040 / 0.040
G18     267.5          56.0               11.4 +/-    1.50      13.5 +/-    1.50  0.040 / 0.040
G20     40.3           51.5               10.4 +/-    0.80      12.8 +/-    0.80  0.190 / 0.300
G21     336.5          61.5               11.6 +/-    0.55      13.0 +/-    0.55  0.110 / 0.220
G26     273.8          15.8                9.9 +/-    0.80      24.1 +/-    0.80  0.060 / 0.120
G29     161.3          45.8               13.9 +/-    0.77      18.5 +/-    0.77  0.050 / 0.120