PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-22:58:00
G10     295.3          50.6               12.2 +/-    1.85      15.2 +/-    1.85  0.090 / 0.090
G14     209.8          12.6               20.5 +/-    5.33      53.9 +/-    5.33  0.100 / 0.080
G15     46.3           29.5               11.5 +/-    1.46      20.4 +/-    1.46  0.040 / 0.040
G18     356.0          66.2               12.4 +/-    0.87      13.4 +/-    0.87  0.030 / 0.040
G20     71.0           18.2               12.3 +/-    1.41      28.3 +/-    1.41  0.080 / 0.130
G21     96.2           73.4               14.2 +/-    0.51      14.8 +/-    0.51  0.070 / 0.130
G24     100.0          26.2               14.5 +/-    0.80      27.6 +/-    0.80  0.050 / 0.080
G27     299.6          34.8               12.8 +/-    1.10      20.3 +/-    1.10  0.080 / 0.060
G32     211.1          28.7               19.1 +/-    2.52      34.3 +/-    2.52  0.290 / 0.580