PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/23-15:12:50
G10     259.1          35.0               10.4 +/-    1.92      16.6 +/-    1.92  0.100 / 0.180
G13     45.8           22.8                6.6 +/-    1.77      13.6 +/-    1.77  0.100 / 0.270
G15     66.3           51.7                7.4 +/-    1.37       9.2 +/-    1.37  0.140 / 0.460
G16     285.9          14.9                2.7 +/-    3.79       6.7 +/-    3.79  0.120 / 0.390
G20     287.6          58.5                9.7 +/-    1.88      11.1 +/-    1.88  0.050 / 0.080
G21     348.5          66.5                8.7 +/-    0.86       9.4 +/-    0.86  0.040 / 0.060
G26     260.3          11.6                5.1 +/-   13.75      13.8 +/-   13.75  0.050 / 0.040
G27     321.6          12.4                3.6 +/-    8.23       9.4 +/-    8.23  0.050 / 0.040
G29     166.1          41.1               11.9 +/-    0.76      17.0 +/-    0.76  0.110 / 0.080