PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/26-19:12:40 G10 294.6 51.0 10.9 +/- 0.63 13.6 +/- 0.63 0.060 / 0.120 G15 47.1 33.2 9.6 +/- 0.78 15.7 +/- 0.78 0.060 / 0.100 G20 347.3 65.4 9.9 +/- 0.92 10.8 +/- 0.92 0.040 / 0.040 G21 91.4 74.3 12.1 +/- 0.47 12.5 +/- 0.47 0.040 / 0.050 G24 96.1 25.3 12.5 +/- 1.42 24.2 +/- 1.42 0.070 / 0.120 G27 304.2 32.1 11.5 +/- 1.02 19.3 +/- 1.02 0.070 / 0.130 G32 209.6 30.2 13.8 +/- 2.69 24.1 +/- 2.69 0.060 / 0.090