PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/16-20:57:40
G10     297.1          51.3               13.1 +/-    1.32      16.3 +/-    1.32  0.060 / 0.090
G14     210.2          13.4               16.8 +/-    1.36      43.3 +/-    1.36  0.060 / 0.090
G15     46.0           27.5               11.5 +/-    1.61      21.2 +/-    1.61  0.070 / 0.130
G18     0.8            65.9               13.0 +/-    0.37      14.1 +/-    0.37  0.070 / 0.150
G20     71.6           18.1               12.5 +/-    0.56      28.9 +/-    0.56  0.060 / 0.160
G21     101.9          71.5               12.8 +/-    0.63      13.4 +/-    0.63  0.070 / 0.180
G24     98.6           26.7               16.0 +/-    0.61      30.0 +/-    0.61  0.030 / 0.050
G27     298.4          35.3               12.3 +/-    0.68      19.4 +/-    0.68  0.030 / 0.040
G32     211.6          29.6               15.1 +/-    1.68      26.7 +/-    1.68  0.080 / 0.550