PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/09-03:13:10 G08 285.6 23.4 7.6 +/- 1.74 15.4 +/- 1.74 0.030 / 0.020 G10 17.5 63.3 7.8 +/- 0.58 8.6 +/- 0.58 0.020 / 0.020 G14 236.2 53.2 8.6 +/- 1.69 10.4 +/- 1.69 0.110 / 0.130 G18 69.1 49.3 -61.2 +/- 47.00 -77.8 +/- 47.00 0.100 / 0.130 G21 148.6 34.6 7.3 +/- 0.94 11.7 +/- 0.94 0.040 / 0.020 G24 52.4 24.1 5.1 +/- 1.61 10.3 +/- 1.61 0.030 / 0.030 G27 246.9 28.2 8.2 +/- 1.27 15.0 +/- 1.27 0.060 / 0.110 G31 182.8 11.0 -4.6 +/- 11.85 -12.4 +/- 11.85 0.060 / 0.090 G32 258.1 70.7 6.9 +/- 0.61 7.2 +/- 0.61 0.060 / 0.070