PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/27-20:27:50 G05 51.6 11.2 8.3 +/- 4.11 22.6 +/- 4.11 0.040 / 0.080 G10 241.6 20.3 13.5 +/- 1.81 29.5 +/- 1.81 0.050 / 0.070 G13 64.5 33.6 9.3 +/- 0.38 15.2 +/- 0.38 0.120 / 0.530 G15 110.8 56.7 12.0 +/- 0.49 14.0 +/- 0.49 0.120 / 0.580 G16 306.5 14.9 7.7 +/- 2.68 19.2 +/- 2.68 0.060 / 0.130 G20 256.9 43.6 12.0 +/- 0.77 16.4 +/- 0.77 0.050 / 0.120 G21 321.0 51.7 11.7 +/- 1.02 14.5 +/- 1.02 0.150 / 0.340 G26 279.1 18.9 10.6 +/- 1.75 24.0 +/- 1.75 0.210 / 0.370 G29 158.9 63.2 11.7 +/- 1.30 13.0 +/- 1.30 0.030 / 0.040