PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-04:12:30
G10     245.2          23.3               10.0 +/-    2.12      20.3 +/-    2.12  0.090 / 0.210
G13     59.5           32.2                6.0 +/-    0.59      10.0 +/-    0.59  0.080 / 0.240
G15     97.4           57.3                7.7 +/-    0.58       9.0 +/-    0.58  0.040 / 0.060
G16     305.1          14.0                6.5 +/-    2.01      16.6 +/-    2.01  0.040 / 0.050
G20     262.0          46.6                8.3 +/-    0.87      10.9 +/-    0.87  0.100 / 0.350
G21     328.1          56.4                6.2 +/-    1.07       7.2 +/-    1.07  0.100 / 0.310
G26     276.6          17.4                8.5 +/-    2.31      20.0 +/-    2.31  0.080 / 0.120
G29     159.4          53.9                7.3 +/-    1.16       8.8 +/-    1.16  0.080 / 0.110