PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/12-21:12:50
G05     48.9           16.6                6.2 +/-    1.70      14.8 +/-    1.70  0.150 / 0.500
G10     236.6          14.7               10.7 +/-    1.83      26.8 +/-    1.83  0.160 / 0.490
G13     73.4           35.2                8.6 +/-    1.48      13.7 +/-    1.48  0.050 / 0.090
G15     123.1          53.1                9.5 +/-    0.75      11.5 +/-    0.75  0.060 / 0.080
G16     313.3          12.7                6.3 +/-    1.82      16.6 +/-    1.82  0.070 / 0.120
G20     249.3          37.8               10.3 +/-    1.71      15.5 +/-    1.71  0.070 / 0.110
G21     313.9          46.8                9.2 +/-    1.02      12.1 +/-    1.02  0.030 / 0.050
G25     199.5          11.1               10.3 +/-    3.79      28.0 +/-    3.79  0.030 / 0.040
G26     286.7          20.0                5.9 +/-    1.92      12.9 +/-    1.92  0.100 / 0.300
G29     153.6          71.3                9.3 +/-    0.50       9.8 +/-    0.50  0.100 / 0.290