PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/10/24-06:13:10 G07 329.1 56.4 3.6 +/- 1.09 4.3 +/- 1.09 0.040 / 0.050 G08 103.5 50.3 7.8 +/- 0.53 9.8 +/- 0.53 0.030 / 0.060 G09 196.2 77.4 3.3 +/- 0.63 3.3 +/- 0.63 0.040 / 0.040 G11 147.5 10.4 -5.0 +/- 19.56 -13.7 +/- 19.56 0.040 / 0.040 G16 44.9 15.1 2.5 +/- 1.27 6.3 +/- 1.27 0.140 / 0.180 G23 154.5 47.8 6.9 +/- 1.50 9.0 +/- 1.50 0.080 / 0.200 G27 58.2 32.8 3.5 +/- 0.85 5.9 +/- 0.85 0.130 / 0.440 G28 234.5 26.9 6.4 +/- 2.11 12.0 +/- 2.11 0.140 / 0.490 G30 298.5 32.1 3.4 +/- 1.44 5.7 +/- 1.44 0.050 / 0.070