PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/18-00:12:30 G01 243.5 33.3 11.5 +/- 1.04 18.9 +/- 1.04 0.040 / 0.050 G03 315.5 46.6 6.7 +/- 0.64 8.8 +/- 0.64 0.040 / 0.040 G14 61.5 41.3 6.9 +/- 0.35 9.8 +/- 0.35 0.080 / 0.120 G16 159.1 22.8 10.2 +/- 2.08 21.0 +/- 2.08 0.070 / 0.110 G22 299.1 67.9 7.1 +/- 1.19 7.6 +/- 1.19 0.080 / 0.230 G23 290.2 22.8 8.8 +/- 1.62 18.1 +/- 1.62 0.080 / 0.250 G26 131.6 41.7 9.8 +/- 0.69 13.9 +/- 0.69 0.050 / 0.090 G31 41.3 52.9 6.3 +/- 0.42 7.7 +/- 0.42 0.050 / 0.080 G32 80.9 19.3 6.0 +/- 1.38 13.4 +/- 1.38 0.050 / 0.060