PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/12-18:12:40
G05     50.3           15.8                9.0 +/-    1.50      22.0 +/-    1.50  0.060 / 0.040
G10     240.0          17.1               13.2 +/-    1.12      31.1 +/-    1.12  0.050 / 0.050
G13     68.0           35.2               11.8 +/-    1.00      18.7 +/-    1.00  0.070 / 0.390
G15     121.7          55.6               12.0 +/-    0.45      14.2 +/-    0.45  0.080 / 0.340
G16     308.7          14.3                7.1 +/-    2.28      18.0 +/-    2.28  0.060 / 0.120
G20     253.8          41.3               12.9 +/-    2.60      18.3 +/-    2.60  0.050 / 0.090
G21     319.7          51.4               11.3 +/-    0.68      14.0 +/-    0.68  0.030 / 0.040
G26     281.8          19.5                9.1 +/-    1.09      20.3 +/-    1.09  0.030 / 0.040
G29     159.0          65.8               12.4 +/-    0.60      13.5 +/-    0.60  0.260 / 0.240