PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-22:27:40
G10     258.1          31.6               17.8 +/-    2.07      30.2 +/-    2.07  0.040 / 0.060
G13     47.8           26.3               16.6 +/-    1.75      31.4 +/-    1.75  0.030 / 0.050
G15     71.8           54.9               16.9 +/-    0.35      20.2 +/-    0.35  0.240 / 0.540
G16     290.4          13.4               16.6 +/-    1.89      42.9 +/-    1.89  0.230 / 0.490
G18     282.8          60.5               16.5 +/-    0.87      18.7 +/-    0.87  0.110 / 0.340
G20     48.9           40.9               15.2 +/-    0.94      21.8 +/-    0.94  0.120 / 0.290
G21     347.2          66.8               15.2 +/-    0.83      16.4 +/-    0.83  0.100 / 0.190
G26     263.2          11.9               18.9 +/-    2.12      50.5 +/-    2.12  0.110 / 0.210
G27     321.1          13.4               14.5 +/-    2.80      37.6 +/-    2.80  0.090 / 0.200
G29     165.3          37.0               17.7 +/-    0.90      27.1 +/-    0.90  0.090 / 0.180