PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/07-21:42:50
G08     320.4          11.3                6.1 +/-   35.70      16.7 +/-   35.70  0.040 / 0.050
G10     302.6          53.1               18.2 +/-    0.68      22.1 +/-    0.68  0.030 / 0.050
G14     211.3          16.9               25.2 +/-    2.39      59.8 +/-    2.39  0.050 / 0.120
G15     45.6           24.5               15.7 +/-    1.32      31.1 +/-    1.32  0.100 / 0.110
G18     8.4            65.1               18.2 +/-    0.62      19.8 +/-    0.62  0.070 / 0.130
G20     74.3           15.5               17.0 +/-    2.22      41.7 +/-    2.22  0.070 / 0.130
G21     110.4          69.2               22.2 +/-    0.60      23.6 +/-    0.60  0.080 / 0.250
G24     94.6           28.1               21.0 +/-    0.87      38.3 +/-    0.87  0.080 / 0.350
G27     294.0          36.6               19.5 +/-    1.74      30.1 +/-    1.74  0.150 / 0.560
G32     213.3          32.9               23.4 +/-    2.21      38.7 +/-    2.21  0.110 / 0.430