PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-15:42:40
G07     326.6          56.5                9.6 +/-    1.14      11.3 +/-    1.14  0.180 / 0.430
G08     116.0          46.9               11.7 +/-    0.74      15.3 +/-    0.74  0.210 / 0.340
G09     250.1          82.7               11.1 +/-    1.14      11.1 +/-    1.14  0.030 / 0.040
G16     43.5           18.4                7.7 +/-    2.25      17.6 +/-    2.25  0.030 / 0.050
G23     150.5          52.9               11.2 +/-    0.64      13.6 +/-    0.64  0.120 / 0.120
G27     68.9           36.8               10.3 +/-    1.13      15.8 +/-    1.13  0.110 / 0.160
G28     228.6          16.1               10.6 +/-    1.48      25.7 +/-    1.48  0.140 / 0.220
G30     294.3          30.0                8.9 +/-    2.08      15.7 +/-    2.08  0.100 / 0.360