PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/23-00:28:10
G08     276.8          21.9                9.7 +/-    1.73      20.3 +/-    1.73  0.030 / 0.020
G10     37.1           62.3               10.3 +/-    0.80      11.5 +/-    0.80  0.030 / 0.030
G11     316.8          11.0               -4.5 +/-   12.28     -12.3 +/-   12.28  0.070 / 0.220
G14     247.7          60.1               11.7 +/-    0.57      13.3 +/-    0.57  0.100 / 0.180
G18     80.3           43.3               10.6 +/-    0.89      14.7 +/-    0.89  0.130 / 0.150
G21     151.4          24.6               11.0 +/-    2.02      21.6 +/-    2.02  0.260 / 0.140
G24     46.0           19.0                8.2 +/-    3.00      18.6 +/-    3.00  0.090 / 0.190
G27     239.1          22.8               13.9 +/-    2.33      28.7 +/-    2.33  0.080 / 0.120
G31     182.1          17.4               15.9 +/-    0.98      37.2 +/-    0.98  0.050 / 0.060
G32     281.9          73.8               10.8 +/-    0.55      11.2 +/-    0.55  0.040 / 0.040