PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-00:58:10
G10     296.7          51.1               11.8 +/-    1.26      14.6 +/-    1.26  0.040 / 0.050
G14     210.1          13.8               11.2 +/-    3.27      28.8 +/-    3.27  0.040 / 0.050
G15     46.3           29.6                9.8 +/-    0.84      17.2 +/-    0.84  0.040 / 0.040
G18     356.4          66.1               10.4 +/-    1.00      11.3 +/-    1.00  0.040 / 0.050
G20     72.0           16.9                8.9 +/-    0.73      21.2 +/-    0.73  0.070 / 0.150
G21     97.7           73.6               13.8 +/-    0.73      14.4 +/-    0.73  0.070 / 0.150
G24     98.8           26.6               13.7 +/-    0.77      25.9 +/-    0.77  0.060 / 0.080
G27     298.4          35.3               11.1 +/-    0.90      17.5 +/-    0.90  0.080 / 0.110
G32     211.3          30.8               12.1 +/-    0.82      20.8 +/-    0.82  0.100 / 0.620