PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/20-21:58:00
G08     319.5          12.4                7.2 +/-    3.88      19.2 +/-    3.88  0.030 / 0.030
G10     306.5          54.7                6.5 +/-    1.23       7.7 +/-    1.23  0.040 / 0.030
G14     211.9          16.4               12.0 +/-    1.56      28.8 +/-    1.56  0.140 / 0.280
G15     46.0           27.9                6.5 +/-    2.07      11.9 +/-    2.07  0.200 / 0.320
G20     6.2            64.8                8.0 +/-    0.74       8.7 +/-    0.74  0.090 / 0.080
G21     112.1          70.1                9.8 +/-    1.26      10.4 +/-    1.26  0.070 / 0.080
G24     88.3           27.9                9.2 +/-    0.89      16.8 +/-    0.89  0.080 / 0.110
G27     295.0          35.7                8.5 +/-    3.06      13.4 +/-    3.06  0.100 / 0.100
G32     213.0          38.8               10.3 +/-    1.56      15.3 +/-    1.56  0.170 / 0.220