PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/29-21:42:40 G01 319.9 16.0 9.1 +/- 2.71 22.1 +/- 2.71 0.190 / 0.320 G08 257.5 14.4 11.5 +/- 1.77 29.1 +/- 1.77 0.210 / 0.390 G10 76.4 54.0 9.5 +/- 0.60 11.4 +/- 0.60 0.200 / 0.410 G11 304.2 22.8 8.9 +/- 1.53 18.4 +/- 1.53 0.180 / 0.330 G14 289.6 70.2 12.6 +/- 0.74 13.3 +/- 0.74 0.040 / 0.040 G18 305.6 40.4 11.4 +/- 1.52 16.5 +/- 1.52 0.040 / 0.050 G20 103.4 30.7 12.4 +/- 0.96 21.4 +/- 0.96 0.110 / 0.280 G27 227.1 10.7 11.9 +/- 2.41 32.6 +/- 2.41 0.120 / 0.280 G31 177.5 38.5 14.8 +/- 2.09 22.0 +/- 2.09 0.090 / 0.250 G32 3.5 69.0 12.1 +/- 0.85 12.8 +/- 0.85 0.070 / 0.210