PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/18-00:42:50 G08 311.3 18.5 9.0 +/- 2.03 20.5 +/- 2.03 0.050 / 0.080 G10 326.2 59.1 10.8 +/- 0.90 12.4 +/- 0.90 0.060 / 0.070 G14 216.5 26.6 14.7 +/- 2.30 27.6 +/- 2.30 0.040 / 0.060 G15 46.3 16.4 6.3 +/- 0.96 15.3 +/- 0.96 0.040 / 0.060 G20 317.3 56.4 23.5 +/- 0.73 27.7 +/- 0.73 0.080 / 0.210 G21 130.6 61.4 11.2 +/- 1.37 12.6 +/- 1.37 0.080 / 0.210 G24 75.9 29.4 10.0 +/- 0.83 17.7 +/- 0.83 0.060 / 0.110 G27 279.5 37.6 11.0 +/- 1.18 16.6 +/- 1.18 0.070 / 0.120 G32 220.4 51.1 13.8 +/- 1.62 17.2 +/- 1.62 0.090 / 0.160