PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/09-21:28:00
G10     298.0          51.6               13.5 +/-    1.32      16.8 +/-    1.32  0.070 / 0.150
G14     210.4          14.1               16.7 +/-    3.30      42.6 +/-    3.30  0.070 / 0.130
G15     45.9           27.1               11.4 +/-    1.73      21.3 +/-    1.73  0.040 / 0.050
G18     1.7            65.8               13.2 +/-    0.47      14.4 +/-    0.47  0.030 / 0.040
G20     72.1           17.5               12.6 +/-    0.57      29.4 +/-    0.57  0.070 / 0.150
G21     103.1          71.4               13.0 +/-    0.89      13.7 +/-    0.89  0.070 / 0.100
G24     97.9           27.0               15.9 +/-    0.73      29.8 +/-    0.73  0.080 / 0.220
G27     297.6          35.5               12.7 +/-    1.19      20.0 +/-    1.19  0.090 / 0.250
G32     211.9          30.0               15.2 +/-    2.15      26.6 +/-    2.15  0.050 / 0.080