PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/17-22:42:40
G08     308.6          19.8                9.0 +/-    1.48      19.9 +/-    1.48  0.050 / 0.040
G10     332.6          60.1                7.9 +/-    0.50       9.0 +/-    0.50  0.050 / 0.050
G14     218.1          30.1               14.1 +/-    2.76      24.6 +/-    2.76  0.110 / 0.170
G15     46.8           15.3                8.5 +/-    1.77      21.1 +/-    1.77  0.110 / 0.190
G20     37.6           60.4                9.3 +/-    0.58      10.5 +/-    0.58  0.060 / 0.060
G21     134.4          57.1               12.1 +/-    0.61      14.1 +/-    0.61  0.060 / 0.070
G24     71.3           28.9                9.0 +/-    0.97      16.1 +/-    0.97  0.080 / 0.080
G27     276.1          37.1               10.4 +/-    1.28      15.9 +/-    1.28  0.070 / 0.090
G32     223.2          53.5               12.4 +/-    1.70      15.0 +/-    1.70  0.100 / 0.260