PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/25-05:28:00 G03 231.6 66.8 6.6 +/- 0.56 7.1 +/- 0.56 0.100 / 0.450 G07 250.3 11.6 7.0 +/- 5.06 18.8 +/- 5.06 0.090 / 0.470 G09 305.0 20.6 6.5 +/- 2.96 14.0 +/- 2.96 0.150 / 0.360 G14 101.2 13.9 4.6 +/- 2.15 11.8 +/- 2.15 0.140 / 0.370 G16 118.0 60.3 9.0 +/- 0.33 10.2 +/- 0.33 0.040 / 0.050 G22 195.6 52.8 6.5 +/- 1.41 7.9 +/- 1.41 0.040 / 0.060 G23 324.2 54.0 6.4 +/- 0.96 7.7 +/- 0.96 0.050 / 0.060 G26 64.5 49.5 6.7 +/- 0.67 8.5 +/- 0.67 0.050 / 0.050 G31 54.5 15.7 4.1 +/- 1.19 10.1 +/- 1.19 0.040 / 0.060