PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/10-18:43:10 G10 247.7 24.6 14.4 +/- 1.45 28.5 +/- 1.45 0.040 / 0.040 G13 56.6 31.4 12.0 +/- 1.72 20.5 +/- 1.72 0.060 / 0.050 G15 101.3 59.4 14.1 +/- 0.75 16.1 +/- 0.75 0.120 / 0.360 G16 298.9 15.6 9.2 +/- 1.45 22.5 +/- 1.45 0.100 / 0.310 G20 265.4 48.6 14.7 +/- 3.76 18.9 +/- 3.76 0.100 / 0.120 G21 330.7 58.2 13.8 +/- 0.41 16.0 +/- 0.41 0.070 / 0.110 G26 271.5 16.8 12.1 +/- 1.16 28.8 +/- 1.16 0.040 / 0.030 G29 163.4 54.0 15.0 +/- 0.62 18.1 +/- 0.62 0.040 / 0.040