PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/12-21:28:00
G10     305.3          54.9               13.2 +/-    0.89      15.8 +/-    0.89  0.100 / 0.110
G14     211.2          13.1               20.1 +/-    2.84      52.5 +/-    2.84  0.110 / 0.090
G15     45.7           25.0               10.5 +/-    1.03      20.6 +/-    1.03  0.040 / 0.050
G20     4.3            64.7               13.1 +/-    0.64      14.4 +/-    0.64  0.040 / 0.050
G21     106.1          72.3               14.9 +/-    1.07      15.6 +/-    1.07  0.100 / 0.570
G24     94.9           28.1               14.1 +/-    0.55      25.7 +/-    0.55  0.110 / 0.590
G27     296.6          35.8               14.4 +/-    1.16      22.5 +/-    1.16  0.090 / 0.130
G32     211.7          36.1               16.7 +/-    1.83      26.0 +/-    1.83  0.060 / 0.130