PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/17-19:43:10 G08 309.9 18.7 10.5 +/- 1.72 23.9 +/- 1.72 0.080 / 0.090 G10 337.9 60.9 10.0 +/- 0.66 11.2 +/- 0.66 0.060 / 0.070 G14 218.3 28.2 11.8 +/- 0.72 21.5 +/- 0.72 0.050 / 0.090 G20 42.9 58.7 9.5 +/- 0.84 10.9 +/- 0.84 0.050 / 0.080 G21 135.5 56.6 11.3 +/- 0.90 13.3 +/- 0.90 0.030 / 0.070 G24 74.4 30.6 10.5 +/- 0.60 18.1 +/- 0.60 0.030 / 0.050 G27 273.7 37.7 11.5 +/- 1.41 17.4 +/- 1.41 0.100 / 0.210 G32 223.4 54.5 12.4 +/- 1.48 14.9 +/- 1.48 0.110 / 0.200