PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/06-18:43:00 G10 265.4 38.7 12.5 +/- 1.08 18.6 +/- 1.08 0.110 / 0.140 G13 42.4 18.6 8.9 +/- 1.18 20.2 +/- 1.18 0.090 / 0.150 G15 60.6 49.6 10.7 +/- 0.55 13.6 +/- 0.55 0.050 / 0.040 G16 280.2 13.3 10.2 +/- 1.80 26.4 +/- 1.80 0.050 / 0.050 G20 296.8 60.4 11.1 +/- 0.74 12.6 +/- 0.74 0.110 / 0.410 G21 357.5 70.0 12.2 +/- 0.60 12.8 +/- 0.60 0.100 / 0.310 G24 123.9 12.9 13.2 +/- 2.78 34.5 +/- 2.78 0.070 / 0.220 G27 319.7 17.1 8.6 +/- 0.93 20.4 +/- 0.93 0.080 / 0.240 G29 167.1 34.2 12.9 +/- 1.29 20.7 +/- 1.29 0.130 / 0.320