PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-19:12:50
G05     49.1           16.6               10.2 +/-    1.45      24.5 +/-    1.45  0.270 / 0.570
G10     237.4          15.8               18.8 +/-    3.46      45.9 +/-    3.46  0.260 / 0.460
G13     71.8           35.0               13.6 +/-    0.81      21.6 +/-    0.81  0.050 / 0.070
G15     121.9          53.8               15.7 +/-    0.53      19.0 +/-    0.53  0.040 / 0.070
G16     311.8          13.4               10.5 +/-    2.88      27.0 +/-    2.88  0.050 / 0.140
G20     250.9          39.6               16.1 +/-    0.93      23.6 +/-    0.93  0.050 / 0.140
G21     315.1          47.6               13.7 +/-    0.87      17.9 +/-    0.87  0.130 / 0.350
G25     198.8          10.1               16.6 +/-   20.91      46.1 +/-   20.91  0.140 / 0.360
G26     285.2          19.9               13.7 +/-    1.16      30.2 +/-    1.16  0.040 / 0.060
G29     155.0          70.5               17.1 +/-    0.97      18.0 +/-    0.97  0.040 / 0.050