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               13.1 +/-    1.00      26.5 +/-    1.00  0.040 / 0.050
G13     58.0           32.1                8.5 +/-    1.70      14.2 +/-    1.70  0.050 / 0.040
G15     102.4          58.9               11.9 +/-    0.61      13.7 +/-    0.61  0.090 / 0.080
G16     298.7          16.1                8.8 +/-    1.92      21.2 +/-    1.92  0.060 / 0.140
G20     251.6          19.6               14.9 +/-    3.27      33.1 +/-    3.27  0.050 / 0.130
G21     327.0          56.1                8.8 +/-    0.58      10.3 +/-    0.58  0.050 / 0.110
G26     270.7          17.5               11.5 +/-    2.78      26.9 +/-    2.78  0.030 / 0.040
G29     163.9          56.6               11.5 +/-    0.63      13.5 +/-    0.63  0.040 / 0.040