PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/01-16:43:10
G07     307.8          46.7               10.8 +/-    1.11      14.2 +/-    1.11  0.050 / 0.090
G08     130.7          40.9               11.7 +/-    0.97      16.7 +/-    0.97  0.050 / 0.090
G09     299.4          79.4               10.0 +/-    1.12      10.1 +/-    1.12  0.040 / 0.070
G16     42.2           21.8                7.4 +/-    0.58      15.7 +/-    0.58  0.030 / 0.060
G23     143.9          56.8               11.4 +/-    0.77      13.4 +/-    0.77  0.050 / 0.060
G27     77.1           37.1                9.1 +/-    1.04      13.8 +/-    1.04  0.050 / 0.080
G28     224.8          13.9                9.6 +/-    4.36      24.5 +/-    4.36  0.080 / 0.270
G30     287.4          23.9                9.9 +/-    1.10      19.9 +/-    1.10  0.090 / 0.240