PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/16-19:12:30
G05     52.8           9.6                 7.8 +/-    4.44      22.0 +/-    4.44  0.050 / 0.060
G13     61.0           32.5                9.0 +/-    1.10      15.0 +/-    1.10  0.040 / 0.050
G15     104.0          57.6               12.0 +/-    0.81      13.9 +/-    0.81  0.050 / 0.110
G16     303.2          15.5                6.8 +/-    2.32      16.6 +/-    2.32  0.070 / 0.120
G20     260.7          46.3               12.3 +/-    3.86      16.3 +/-    3.86  0.030 / 0.030
G21     324.3          53.8               10.3 +/-    0.30      12.5 +/-    0.30  0.030 / 0.030
G26     275.9          18.2               10.3 +/-    1.17      23.7 +/-    1.17  0.120 / 0.550
G29     160.6          60.0               13.3 +/-    0.28      15.1 +/-    0.28  0.120 / 0.500