PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/31-19:58:00 G08 276.9 21.3 11.3 +/- 1.74 24.1 +/- 1.74 0.120 / 0.280 G10 46.9 59.9 10.6 +/- 0.94 12.0 +/- 0.94 0.110 / 0.240 G14 246.2 56.2 11.5 +/- 1.30 13.6 +/- 1.30 0.040 / 0.060 G20 87.8 40.3 10.5 +/- 1.52 15.2 +/- 1.52 0.040 / 0.060 G21 153.3 24.3 10.4 +/- 3.74 20.7 +/- 3.74 0.260 / 0.280 G24 44.8 17.2 8.8 +/- 2.83 20.7 +/- 2.83 0.350 / 0.310 G27 238.6 22.3 11.6 +/- 2.04 24.2 +/- 2.04 0.130 / 0.300 G31 179.6 21.8 12.2 +/- 1.75 25.7 +/- 1.75 0.160 / 0.230 G32 306.8 77.0 10.2 +/- 0.63 10.4 +/- 0.63 0.080 / 0.110