PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/27-05:57:50
G03     205.5          47.3               10.2 +/-    1.12      13.3 +/-    1.12  0.030 / 0.030
G07     267.7          24.3                7.0 +/-    2.31      13.9 +/-    2.31  0.030 / 0.040
G09     316.6          40.4                5.7 +/-    1.09       8.3 +/-    1.09  0.080 / 0.090
G16     71.1           64.0                7.0 +/-    0.38       7.7 +/-    0.38  0.090 / 0.110
G22     185.0          30.3                7.9 +/-    2.29      13.7 +/-    2.29  0.090 / 0.180
G23     340.5          69.1                5.3 +/-    1.03       5.7 +/-    1.03  0.160 / 0.190
G26     47.3           37.2                5.6 +/-    0.94       8.5 +/-    0.94  0.030 / 0.040
G27     123.3          19.3                6.8 +/-    1.31      15.3 +/-    1.31  0.030 / 0.030