PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/04-03:43:00 G03 233.9 66.4 5.3 +/- 0.57 5.7 +/- 0.57 0.050 / 0.060 G07 250.0 9.9 -8.5 +/- 9.77 -23.7 +/- 9.77 0.050 / 0.060 G14 102.1 12.6 4.2 +/- 2.31 11.1 +/- 2.31 0.050 / 0.040 G16 117.1 61.0 8.2 +/- 0.61 9.3 +/- 0.61 0.040 / 0.050 G22 194.7 52.7 8.4 +/- 1.05 10.3 +/- 1.05 0.080 / 0.360 G23 320.7 50.5 5.0 +/- 1.13 6.3 +/- 1.13 0.180 / 0.520 G26 64.1 49.6 5.0 +/- 0.75 6.4 +/- 0.75 0.130 / 0.450 G31 54.0 17.2 2.6 +/- 0.60 6.1 +/- 0.60 0.060 / 0.060