PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/10/26-21:42:30 G08 290.2 23.3 10.8 +/- 0.88 22.0 +/- 0.88 0.110 / 0.120 G10 10.0 63.2 10.7 +/- 0.59 11.8 +/- 0.59 0.100 / 0.110 G14 232.2 49.3 15.1 +/- 1.46 19.2 +/- 1.46 0.060 / 0.120 G18 66.7 49.6 11.8 +/- 0.77 14.9 +/- 0.77 0.060 / 0.130 G21 146.6 35.3 14.3 +/- 1.00 22.6 +/- 1.00 0.040 / 0.130 G24 55.4 25.7 10.9 +/- 1.10 21.0 +/- 1.10 0.050 / 0.110 G27 250.6 30.3 15.5 +/- 1.57 27.0 +/- 1.57 0.030 / 0.040 G32 248.1 66.6 11.8 +/- 0.87 12.8 +/- 0.87 0.040 / 0.040