PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/28-21:43:00 G10 275.8 44.1 11.4 +/- 1.00 15.5 +/- 1.00 0.040 / 0.040 G13 38.7 11.6 7.6 +/- 9.83 20.4 +/- 9.83 0.050 / 0.040 G15 53.1 43.7 9.1 +/- 0.58 12.4 +/- 0.58 0.470 / 0.850 G20 313.7 63.2 9.0 +/- 0.53 9.9 +/- 0.53 0.280 / 0.320 G21 21.5 75.3 9.9 +/- 0.73 10.2 +/- 0.73 0.040 / 0.050 G24 115.7 18.3 10.2 +/- 1.42 23.4 +/- 1.42 0.040 / 0.050 G27 315.3 23.9 8.6 +/- 1.49 17.3 +/- 1.49 0.210 / 0.290 G29 167.8 24.1 12.3 +/- 2.58 24.5 +/- 2.58 0.200 / 0.160 G32 205.2 15.5 15.2 +/- 2.38 37.3 +/- 2.38 0.090 / 0.150