PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/28-00:58:00 G03 244.1 68.8 6.1 +/- 0.30 6.5 +/- 0.30 0.050 / 0.050 G09 303.8 20.2 4.6 +/- 1.70 10.0 +/- 1.70 0.040 / 0.040 G14 97.4 18.2 5.7 +/- 1.78 13.2 +/- 1.78 0.110 / 0.280 G16 123.5 58.1 8.6 +/- 0.22 9.9 +/- 0.22 0.130 / 0.360 G22 199.1 56.8 7.4 +/- 0.58 8.6 +/- 0.58 0.040 / 0.050 G23 319.2 49.1 7.2 +/- 0.77 9.2 +/- 0.77 0.050 / 0.060 G26 69.7 51.4 5.3 +/- 0.84 6.6 +/- 0.84 0.030 / 0.030 G31 52.4 19.0 4.1 +/- 1.88 9.3 +/- 1.88 0.030 / 0.030