PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/30-01:57:30 G08 280.9 22.8 11.2 +/- 1.49 23.1 +/- 1.49 0.060 / 0.120 G10 27.8 63.0 10.3 +/- 0.62 11.4 +/- 0.62 0.080 / 0.160 G14 241.7 56.9 12.7 +/- 1.01 14.8 +/- 1.01 0.020 / 0.030 G18 75.1 46.3 10.8 +/- 0.81 14.2 +/- 0.81 0.030 / 0.030 G21 150.2 29.5 12.6 +/- 1.14 22.3 +/- 1.14 0.040 / 0.070 G24 48.9 21.6 8.9 +/- 1.27 18.9 +/- 1.27 0.040 / 0.080 G27 242.7 25.5 13.4 +/- 1.57 25.9 +/- 1.57 0.080 / 0.220 G31 182.2 14.4 15.9 +/- 1.91 40.0 +/- 1.91 0.080 / 0.140 G32 269.9 72.7 12.1 +/- 0.41 12.6 +/- 0.41 0.080 / 0.150