PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/11/10-14:42:50 G02 50.6 40.0 5.6 +/- 1.50 8.1 +/- 1.50 0.030 / 0.020 G05 89.6 69.9 7.7 +/- 0.52 8.2 +/- 0.52 0.030 / 0.020 G12 189.3 46.9 9.4 +/- 1.17 12.3 +/- 1.17 0.290 / 0.360 G20 203.2 45.4 9.1 +/- 0.76 12.1 +/- 0.76 0.150 / 0.270 G21 262.8 12.9 7.9 +/- 2.50 20.7 +/- 2.50 0.040 / 0.060 G25 256.6 58.0 8.4 +/- 1.66 9.7 +/- 1.66 0.030 / 0.050 G29 324.5 49.0 5.9 +/- 0.58 7.5 +/- 0.58 0.030 / 0.040