PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/23-21:43:10 G08 267.5 19.2 8.9 +/- 1.13 20.0 +/- 1.13 0.160 / 0.290 G10 57.8 58.8 9.1 +/- 1.18 10.4 +/- 1.18 0.150 / 0.320 G11 312.3 16.7 2.0 +/- 16.74 4.7 +/- 16.74 0.150 / 0.300 G14 261.9 65.0 7.2 +/- 1.26 7.9 +/- 1.26 0.130 / 0.250 G18 312.9 31.7 8.8 +/- 2.07 14.9 +/- 2.07 0.040 / 0.060 G20 93.3 38.0 10.6 +/- 0.83 16.0 +/- 0.83 0.040 / 0.070 G21 154.2 16.5 13.0 +/- 3.13 31.1 +/- 3.13 0.100 / 0.230 G27 234.9 17.7 12.7 +/- 3.38 29.5 +/- 3.38 0.100 / 0.180 G31 179.3 27.5 12.9 +/- 1.04 23.8 +/- 1.04 0.120 / 0.340 G32 332.9 75.1 8.1 +/- 0.75 8.3 +/- 0.75 0.090 / 0.240