PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/11-20:12:30 G10 293.6 50.7 10.8 +/- 1.06 13.5 +/- 1.06 0.050 / 0.090 G15 47.4 34.5 10.0 +/- 0.61 16.0 +/- 0.61 0.060 / 0.100 G20 345.6 65.4 9.4 +/- 0.65 10.2 +/- 0.65 0.050 / 0.050 G21 88.0 75.0 12.5 +/- 0.36 12.9 +/- 0.36 0.050 / 0.050 G24 97.2 25.1 12.6 +/- 0.55 24.6 +/- 0.55 0.070 / 0.150 G27 304.6 32.0 11.4 +/- 1.12 19.2 +/- 1.12 0.070 / 0.150 G29 168.2 10.2 15.7 +/- 3.77 43.5 +/- 3.77 0.060 / 0.070 G32 209.3 29.9 14.7 +/- 2.02 25.9 +/- 2.02 0.050 / 0.070