PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/10/02-00:28:30 G01 320.2 13.7 11.2 +/- 2.28 28.7 +/- 2.28 0.020 / 0.030 G08 260.6 15.7 15.5 +/- 3.49 37.9 +/- 3.49 0.020 / 0.030 G10 70.2 56.7 13.6 +/- 0.81 15.9 +/- 0.81 0.120 / 0.200 G11 306.5 21.6 11.2 +/- 2.23 23.6 +/- 2.23 0.100 / 0.210 G14 284.8 70.0 13.9 +/- 0.91 14.7 +/- 0.91 0.060 / 0.080 G18 97.2 32.6 14.4 +/- 0.59 24.0 +/- 0.59 0.060 / 0.100 G27 226.3 11.6 16.6 +/- 4.04 44.6 +/- 4.04 0.090 / 0.320 G31 179.5 33.9 17.7 +/- 0.87 28.7 +/- 0.87 0.100 / 0.340 G32 344.4 72.1 14.2 +/- 0.88 14.8 +/- 0.88 0.050 / 0.060