PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/02-06:43:10 G07 326.6 55.7 3.9 +/- 1.05 4.7 +/- 1.05 0.240 / 0.430 G08 104.3 49.8 7.7 +/- 0.88 9.8 +/- 0.88 0.230 / 0.510 G09 179.5 74.3 4.7 +/- 0.64 4.8 +/- 0.64 0.100 / 0.090 G11 147.9 10.5 -5.1 +/- 13.05 -14.0 +/- 13.05 0.080 / 0.120 G16 45.4 10.2 2.2 +/- 2.14 6.1 +/- 2.14 0.040 / 0.040 G23 154.2 48.8 6.3 +/- 1.43 8.1 +/- 1.43 0.040 / 0.040 G27 61.8 35.0 3.7 +/- 0.65 5.9 +/- 0.65 0.050 / 0.090 G28 233.0 24.2 6.1 +/- 2.54 12.0 +/- 2.54 0.050 / 0.080 G30 296.9 30.2 5.3 +/- 2.51 9.3 +/- 2.51 0.040 / 0.070