PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/07-07:28:00
G08     294.7          23.0                3.7 +/-    1.23       7.6 +/-    1.23  0.080 / 0.100
G10     7.8            62.8                1.7 +/-    1.26       1.9 +/-    1.26  0.080 / 0.110
G14     228.4          46.1                5.9 +/-    2.62       7.9 +/-    2.62  0.030 / 0.030
G18     317.7          10.4              -10.8 +/-    9.65     -30.0 +/-    9.65  0.030 / 0.030
G20     64.1           52.7                4.4 +/-    1.23       5.3 +/-    1.23  0.120 / 0.130
G24     56.5           25.4                4.4 +/-    2.31       8.5 +/-    2.31  0.080 / 0.150
G27     257.1          32.5                3.7 +/-    2.59       6.1 +/-    2.59  0.090 / 0.120
G32     240.7          62.7                5.5 +/-    0.93       6.1 +/-    0.93  0.100 / 0.110