PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-23:27:50
G08     305.4          21.0                8.5 +/-    1.84      18.1 +/-    1.84  0.080 / 0.070
G10     339.8          61.1                6.9 +/-    0.49       7.7 +/-    0.49  0.080 / 0.080
G14     220.2          33.3               12.1 +/-    1.32      19.9 +/-    1.32  0.140 / 0.130
G15     47.5           12.4                5.7 +/-    2.29      15.2 +/-    2.29  0.080 / 0.170
G20     44.3           58.9                9.8 +/-    0.77      11.2 +/-    0.77  0.070 / 0.070
G21     137.8          53.7               11.2 +/-    0.35      13.5 +/-    0.35  0.070 / 0.080
G24     67.4           28.4                7.5 +/-    1.18      13.5 +/-    1.18  0.030 / 0.040
G27     271.2          36.5                9.5 +/-    1.47      14.7 +/-    1.47  0.030 / 0.050
G32     226.8          57.2               10.9 +/-    2.32      12.7 +/-    2.32  0.120 / 0.290