PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/17-15:42:30
G03     207.7          55.6               12.5 +/-    1.00      14.8 +/-    1.00  0.030 / 0.040
G07     257.7          15.4                9.8 +/-    2.94      24.1 +/-    2.94  0.030 / 0.050
G09     310.7          28.4                9.1 +/-    1.09      16.5 +/-    1.09  0.030 / 0.040
G16     90.1           64.1               11.0 +/-    0.87      12.1 +/-    0.87  0.040 / 0.040
G22     184.0          37.1               12.6 +/-    0.87      19.3 +/-    0.87  0.090 / 0.120
G23     337.1          64.4               11.0 +/-    0.46      12.1 +/-    0.46  0.100 / 0.070
G26     51.8           41.0                9.2 +/-    1.14      13.1 +/-    1.14  0.070 / 0.080
G27     132.9          11.5               12.6 +/-    2.72      34.0 +/-    2.72  0.090 / 0.070