PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/24-18:13:10 G10 258.6 33.2 10.1 +/- 2.12 16.6 +/- 2.12 0.120 / 0.320 G13 46.5 24.0 10.4 +/- 3.12 20.7 +/- 3.12 0.150 / 0.260 G15 74.4 56.8 9.1 +/- 0.76 10.6 +/- 0.76 0.210 / 0.180 G16 287.1 14.4 7.2 +/- 3.37 18.2 +/- 3.37 0.050 / 0.050 G20 283.0 56.2 10.1 +/- 2.84 11.9 +/- 2.84 0.040 / 0.040 G21 348.8 67.0 9.9 +/- 0.61 10.7 +/- 0.61 0.180 / 0.480 G24 123.9 9.8 -14.4 +/- 23.45 -40.4 +/- 23.45 0.120 / 0.150 G26 260.6 11.7 8.5 +/- 15.10 22.7 +/- 15.10 0.110 / 0.140 G27 322.1 10.8 -12.2 +/- 21.66 -33.6 +/- 21.66 0.040 / 0.040 G29 166.4 40.0 9.9 +/- 1.39 14.4 +/- 1.39 0.040 / 0.050