PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-16:57:50
G10     258.5          34.4               13.2 +/-    1.18      21.2 +/-    1.18  0.190 / 0.290
G13     46.3           23.3               10.5 +/-    0.66      21.3 +/-    0.66  0.120 / 0.310
G15     68.5           53.0               12.3 +/-    0.58      15.0 +/-    0.58  0.160 / 0.490
G16     286.5          15.0                7.9 +/-    1.83      19.8 +/-    1.83  0.170 / 0.510
G20     285.5          57.6               13.9 +/-    0.86      16.2 +/-    0.86  0.040 / 0.050
G21     346.1          65.7               11.9 +/-    0.86      12.9 +/-    0.86  0.050 / 0.050
G26     260.5          11.9               11.7 +/-    2.12      31.2 +/-    2.12  0.050 / 0.070
G27     321.8          11.7                4.6 +/-   26.39      12.4 +/-   26.39  0.040 / 0.060
G29     166.0          41.7               16.0 +/-    0.74      22.6 +/-    0.74  0.070 / 0.250