PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/04-23:12:40 G08 316.3 15.4 6.1 +/- 1.71 15.1 +/- 1.71 0.040 / 0.070 G10 313.2 56.4 7.6 +/- 1.66 8.9 +/- 1.66 0.060 / 0.060 G14 213.3 20.4 14.9 +/- 3.25 32.5 +/- 3.25 0.210 / 0.370 G15 45.8 23.3 6.3 +/- 2.48 12.7 +/- 2.48 0.140 / 0.300 G20 296.6 43.8 4.9 +/- 0.56 6.7 +/- 0.56 0.090 / 0.100 G21 119.5 68.1 9.1 +/- 0.49 9.7 +/- 0.49 0.060 / 0.100 G24 84.3 28.8 8.3 +/- 1.24 15.0 +/- 1.24 0.030 / 0.040 G27 289.2 37.1 8.2 +/- 1.69 12.6 +/- 1.69 0.030 / 0.040 G32 215.2 43.7 11.5 +/- 1.26 15.8 +/- 1.26 0.130 / 0.280