PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-23:13:00
G08     320.2          11.5                5.8 +/-   29.18      15.7 +/-   29.18  0.050 / 0.040
G10     302.5          53.0               12.2 +/-    1.03      14.9 +/-    1.03  0.040 / 0.040
G14     211.2          17.1               19.3 +/-    2.02      45.7 +/-    2.02  0.090 / 0.140
G15     45.7           25.1               12.7 +/-    1.79      24.7 +/-    1.79  0.100 / 0.110
G18     7.0            65.2               12.9 +/-    0.94      14.0 +/-    0.94  0.050 / 0.070
G20     74.5           15.0               12.0 +/-    1.03      29.8 +/-    1.03  0.080 / 0.100
G21     109.4          70.1               16.0 +/-    0.97      16.9 +/-    0.97  0.120 / 0.330
G24     94.6           28.0               15.6 +/-    1.77      28.6 +/-    1.77  0.140 / 0.430
G27     294.0          36.6               17.3 +/-    1.85      26.8 +/-    1.85  0.120 / 0.330
G32     213.2          33.5               15.9 +/-    1.85      25.9 +/-    1.85  0.110 / 0.340