PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-22:42:50
G10     246.7          23.5               12.1 +/-    1.18      24.5 +/-    1.18  0.040 / 0.060
G13     58.0           32.1                9.0 +/-    1.00      15.1 +/-    1.00  0.070 / 0.040
G15     102.4          58.9               10.7 +/-    0.58      12.3 +/-    0.58  0.170 / 0.600
G16     298.7          16.1                8.5 +/-    2.82      20.6 +/-    2.82  0.140 / 0.760
G20     251.6          19.6               13.5 +/-    0.77      30.0 +/-    0.77  0.100 / 0.180
G21     327.0          56.1                7.8 +/-    1.00       9.2 +/-    1.00  0.070 / 0.190
G26     270.7          17.5               11.2 +/-    1.77      26.1 +/-    1.77  0.060 / 0.130
G29     163.9          56.6               11.2 +/-    0.89      13.1 +/-    0.89  0.050 / 0.140