PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/26-21:43:10
G10     246.1          23.0                8.7 +/-    3.36      17.8 +/-    3.36  0.040 / 0.060
G13     58.7           32.4                8.2 +/-    1.01      13.6 +/-    1.01  0.030 / 0.060
G15     105.2          58.9                8.9 +/-    0.61      10.2 +/-    0.61  0.120 / 0.620
G16     299.3          16.2                5.7 +/-    2.09      13.8 +/-    2.09  0.130 / 0.480
G20     249.1          12.0                4.0 +/-    0.73      10.7 +/-    0.73  0.060 / 0.100
G21     326.0          55.5                6.4 +/-    1.05       7.6 +/-    1.05  0.060 / 0.140
G26     271.4          17.8                7.5 +/-    1.50      17.4 +/-    1.50  0.030 / 0.050
G29     163.6          57.6                7.8 +/-    0.90       9.1 +/-    0.90  0.030 / 0.050