PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/25-00:43:00 G01 221.9 14.6 11.3 +/- 16.51 28.5 +/- 16.51 0.040 / 0.030 G03 282.7 68.4 9.8 +/- 0.79 10.4 +/- 0.79 0.040 / 0.040 G09 296.3 11.5 -0.2 +/- 33.33 -0.5 +/- 33.33 0.120 / 0.180 G14 86.9 25.7 7.9 +/- 2.05 15.2 +/- 2.05 0.110 / 0.160 G16 140.9 48.0 10.4 +/- 1.63 13.4 +/- 1.63 0.160 / 0.270 G22 215.6 68.4 10.7 +/- 0.75 11.4 +/- 0.75 0.230 / 0.290 G23 309.9 40.0 9.4 +/- 1.51 13.7 +/- 1.51 0.030 / 0.030 G26 91.2 54.2 7.5 +/- 0.56 9.1 +/- 0.56 0.030 / 0.030 G31 46.9 28.7 6.6 +/- 1.83 12.0 +/- 1.83 0.360 / 0.400