PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/09/04-02:12:50 G08 264.8 17.8 9.9 +/- 0.78 23.1 +/- 0.78 0.030 / 0.030 G10 61.4 58.8 8.1 +/- 0.71 9.2 +/- 0.71 0.030 / 0.020 G11 309.7 19.3 8.2 +/- 1.06 18.3 +/- 1.06 0.160 / 0.200 G14 272.1 68.1 7.5 +/- 0.80 8.0 +/- 0.80 0.070 / 0.180 G18 92.3 36.3 7.8 +/- 1.33 12.1 +/- 1.33 0.120 / 0.390 G21 154.2 13.7 8.3 +/- 1.38 21.4 +/- 1.38 0.130 / 0.350 G24 39.9 10.8 8.8 +/- 2.69 24.0 +/- 2.69 0.340 / 0.330 G27 229.7 14.8 10.0 +/- 1.76 24.9 +/- 1.76 0.240 / 0.280 G31 179.2 30.1 8.5 +/- 1.12 14.8 +/- 1.12 0.060 / 0.100 G32 333.0 74.0 7.1 +/- 0.36 7.4 +/- 0.36 0.060 / 0.080