PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-18:12:40
G05     49.9           15.2               12.7 +/-    1.35      31.5 +/-    1.35  0.050 / 0.070
G10     239.0          17.7               18.7 +/-    1.24      43.5 +/-    1.24  0.060 / 0.060
G13     68.7           34.5               15.7 +/-    1.33      25.2 +/-    1.33  0.100 / 0.430
G15     116.0          55.2               16.7 +/-    0.36      19.9 +/-    0.36  0.080 / 0.550
G16     309.4          14.2               10.3 +/-    4.11      26.2 +/-    4.11  0.070 / 0.110
G20     253.5          41.8               17.3 +/-    2.62      24.5 +/-    2.62  0.050 / 0.160
G21     317.7          49.3               14.2 +/-    0.75      18.0 +/-    0.75  0.030 / 0.040
G26     282.7          19.6               13.4 +/-    1.09      29.8 +/-    1.09  0.030 / 0.040
G29     157.0          67.9               16.4 +/-    0.48      17.5 +/-    0.48  0.110 / 0.190