PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/29-07:42:40 G08 274.8 19.7 8.0 +/- 1.55 17.7 +/- 1.55 0.050 / 0.060 G10 50.8 60.4 4.9 +/- 0.80 5.5 +/- 0.80 0.040 / 0.050 G14 252.4 58.6 6.8 +/- 0.88 7.8 +/- 0.88 0.130 / 0.200 G18 315.0 26.5 8.2 +/- 1.14 15.5 +/- 1.14 0.160 / 0.250 G20 96.2 27.9 5.2 +/- 1.39 9.5 +/- 1.39 0.410 / 0.480 G21 153.8 20.9 5.8 +/- 1.25 12.5 +/- 1.25 0.510 / 0.320 G24 41.8 13.4 1.5 +/- 3.83 3.9 +/- 3.83 0.120 / 0.200 G27 235.6 19.3 8.6 +/- 5.17 19.3 +/- 5.17 0.110 / 0.200 G31 177.8 26.8 6.5 +/- 0.96 12.2 +/- 0.96 0.110 / 0.470 G32 326.3 76.1 7.3 +/- 0.54 7.5 +/- 0.54 0.180 / 0.200