PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/23-20:42:40
G08     319.0          12.6               11.7 +/-    2.15      30.7 +/-    2.15  0.070 / 0.250
G10     306.4          54.2               13.0 +/-    1.03      15.6 +/-    1.03  0.070 / 0.180
G14     212.1          19.0               13.8 +/-    3.17      31.2 +/-    3.17  0.140 / 0.140
G15     45.5           22.0               11.8 +/-    1.07      24.7 +/-    1.07  0.080 / 0.130
G18     14.5           64.2               12.1 +/-    0.70      13.3 +/-    0.70  0.080 / 0.080
G20     75.9           14.4               12.2 +/-    1.10      30.7 +/-    1.10  0.070 / 0.100
G24     91.7           28.8               14.6 +/-    0.86      26.1 +/-    0.86  0.180 / 0.720
G27     291.1          37.2               13.6 +/-    1.68      20.8 +/-    1.68  0.140 / 0.530
G32     214.4          35.9               17.1 +/-    1.25      26.7 +/-    1.25  0.100 / 0.110