PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/10/19-04:43:10 G03 200.6 39.9 12.9 +/- 28.59 18.8 +/- 28.59 0.070 / 0.210 G07 273.8 28.2 10.0 +/- 30.64 18.2 +/- 30.64 0.060 / 0.170 G08 151.6 14.1 9.0 +/- 28.38 23.0 +/- 28.38 0.120 / 0.440 G09 318.8 46.2 9.8 +/- 29.20 13.0 +/- 29.20 0.130 / 0.350 G16 58.7 60.3 3.7 +/- 3.15 4.2 +/- 3.15 0.030 / 0.040 G22 183.2 23.5 4.0 +/- 4.44 8.1 +/- 4.44 0.030 / 0.050 G23 352.6 75.8 12.6 +/- 28.60 12.9 +/- 28.60 0.070 / 0.310 G26 44.9 32.0 10.2 +/- 29.35 17.1 +/- 29.35 0.070 / 0.120 G27 117.1 24.0 7.1 +/- 3.21 14.2 +/- 3.21 0.090 / 0.160