PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/25-20:43:00 G08 292.3 23.7 10.3 +/- 1.21 20.7 +/- 1.21 0.080 / 0.090 G10 6.7 62.9 8.7 +/- 0.61 9.6 +/- 0.61 0.060 / 0.070 G14 229.0 45.7 10.0 +/- 0.75 13.3 +/- 0.75 0.040 / 0.100 G18 317.5 10.7 -5.3 +/- 29.15 -14.5 +/- 29.15 0.040 / 0.110 G20 64.3 52.6 9.1 +/- 0.88 11.1 +/- 0.88 0.080 / 0.110 G21 146.0 40.0 10.8 +/- 0.40 15.7 +/- 0.40 0.070 / 0.090 G24 54.1 23.5 8.4 +/- 0.76 17.0 +/- 0.76 0.090 / 0.190 G27 257.1 32.1 10.6 +/- 0.86 17.7 +/- 0.86 0.150 / 0.200 G32 244.6 67.6 11.4 +/- 0.65 12.3 +/- 0.65 0.060 / 0.100