PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/19-22:28:10
G08     281.7          22.7               11.0 +/-    1.77      22.8 +/-    1.77  0.100 / 0.150
G10     27.7           62.9               11.4 +/-    0.64      12.7 +/-    0.64  0.070 / 0.120
G14     241.2          56.2               13.9 +/-    0.89      16.4 +/-    0.89  0.030 / 0.030
G18     76.0           45.3               11.5 +/-    0.98      15.4 +/-    0.98  0.030 / 0.030
G21     149.8          27.8               14.2 +/-    0.57      26.0 +/-    0.57  0.200 / 0.340
G24     49.0           21.6                9.5 +/-    1.16      20.2 +/-    1.16  0.180 / 0.280
G27     243.0          25.6               14.7 +/-    2.88      28.3 +/-    2.88  0.060 / 0.150
G31     184.0          12.2               21.0 +/-    2.28      55.8 +/-    2.28  0.070 / 0.190
G32     267.5          71.8               12.8 +/-    0.59      13.4 +/-    0.59  0.020 / 0.030