PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/09/05-21:58:00 G05 53.0 11.4 14.3 +/- 3.37 38.8 +/- 3.37 0.120 / 0.270 G10 245.1 20.9 26.6 +/- 1.50 57.2 +/- 1.50 0.110 / 0.280 G13 61.9 34.7 18.0 +/- 0.73 28.6 +/- 0.73 0.060 / 0.060 G15 102.2 57.6 20.8 +/- 0.34 24.1 +/- 0.34 0.050 / 0.060 G16 305.2 13.8 17.1 +/- 1.21 43.9 +/- 1.21 0.200 / 0.390 G18 259.4 51.3 21.9 +/- 0.84 27.2 +/- 0.84 0.110 / 0.360 G20 38.4 53.9 17.6 +/- 0.31 21.2 +/- 0.31 0.050 / 0.140 G21 326.5 56.2 18.7 +/- 0.79 21.9 +/- 0.79 0.050 / 0.140 G26 277.6 17.5 20.0 +/- 3.01 46.8 +/- 3.01 0.040 / 0.060 G29 161.0 54.0 19.7 +/- 1.18 23.7 +/- 1.18 0.040 / 0.060