PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-18:43:10
G05     52.7           10.0                9.5 +/-    3.71      26.4 +/-    3.71  0.040 / 0.070
G10     243.8          22.5               12.2 +/-    1.20      25.3 +/-    1.20  0.050 / 0.070
G13     61.1           32.6                9.5 +/-    1.06      15.7 +/-    1.06  0.070 / 0.130
G15     103.5          57.5               12.9 +/-    0.65      15.0 +/-    0.65  0.090 / 0.110
G16     303.3          15.5                6.6 +/-    2.89      16.2 +/-    2.89  0.030 / 0.040
G20     260.7          46.4               12.7 +/-    3.82      16.8 +/-    3.82  0.030 / 0.040
G21     324.2          53.7               11.3 +/-    0.41      13.6 +/-    0.41  0.100 / 0.160
G26     276.1          18.2                9.8 +/-    1.24      22.4 +/-    1.24  0.110 / 0.150
G29     160.6          60.3               13.0 +/-    0.39      14.7 +/-    0.39  0.320 / 0.420