PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/26-15:58:10 G05 47.3 22.2 7.1 +/- 1.68 14.7 +/- 1.68 0.040 / 0.200 G10 234.6 12.6 10.7 +/- 25.79 28.3 +/- 25.79 0.090 / 0.280 G13 77.3 35.3 11.3 +/- 1.54 17.9 +/- 1.54 0.210 / 0.390 G15 124.7 51.4 9.9 +/- 0.61 12.3 +/- 0.61 0.200 / 0.340 G16 315.2 12.1 2.0 +/- 18.98 5.3 +/- 18.98 0.020 / 0.020 G20 247.2 37.4 11.7 +/- 1.75 17.8 +/- 1.75 0.030 / 0.020 G21 311.5 45.2 7.8 +/- 0.94 10.5 +/- 0.94 0.040 / 0.080 G25 200.8 13.4 15.2 +/- 2.20 39.4 +/- 2.20 0.060 / 0.090 G26 289.8 20.2 3.0 +/- 1.80 6.6 +/- 1.80 0.210 / 0.440 G29 150.7 76.1 9.3 +/- 0.76 9.5 +/- 0.76 0.170 / 0.450