PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/16-07:27:50
G03     215.5          58.0                8.0 +/-    0.75       9.2 +/-    0.75  0.050 / 0.080
G07     257.9          16.1                6.9 +/-    2.23      16.8 +/-    2.23  0.080 / 0.090
G09     311.9          31.7                2.6 +/-    1.05       4.5 +/-    1.05  0.080 / 0.280
G16     86.7           63.0                6.1 +/-    0.45       6.8 +/-    0.45  0.150 / 0.360
G22     189.4          41.4                6.8 +/-    1.98       9.7 +/-    1.98  0.210 / 0.300
G23     330.5          60.4                3.7 +/-    0.74       4.2 +/-    0.74  0.120 / 0.250
G26     51.5           40.4                4.9 +/-    0.52       7.1 +/-    0.52  0.040 / 0.050
G27     133.7          11.2                1.9 +/-   18.38       5.3 +/-   18.38  0.040 / 0.040