PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/23-00:42:30
G10     297.0          51.2               13.1 +/-    2.40      16.3 +/-    2.40  0.100 / 0.180
G14     210.1          13.9               18.8 +/-    1.75      47.9 +/-    1.75  0.110 / 0.170
G15     46.2           29.3               12.3 +/-    1.23      21.9 +/-    1.23  0.090 / 0.070
G18     357.0          66.1               12.7 +/-    0.63      13.8 +/-    0.63  0.060 / 0.050
G20     72.1           16.8               10.3 +/-    1.96      24.6 +/-    1.96  0.040 / 0.030
G21     98.4           73.4               13.9 +/-    0.62      14.5 +/-    0.62  0.040 / 0.030
G24     98.6           26.7               14.5 +/-    1.28      27.2 +/-    1.28  0.120 / 0.530
G27     298.2          35.3               13.3 +/-    1.74      20.9 +/-    1.74  0.190 / 0.620
G32     211.4          30.8               16.9 +/-    2.49      29.1 +/-    2.49  0.060 / 0.090