PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/22-22:58:00 G01 217.5 10.2 7.9 +/- 22.36 21.9 +/- 22.36 0.040 / 0.050 G03 263.8 70.0 6.7 +/- 0.67 7.1 +/- 0.67 0.040 / 0.050 G09 300.6 17.1 7.7 +/- 1.94 18.3 +/- 1.94 0.110 / 0.270 G14 91.8 23.0 9.0 +/- 0.63 18.4 +/- 0.63 0.110 / 0.320 G16 133.3 53.4 10.9 +/- 1.41 13.3 +/- 1.41 0.040 / 0.060 G22 204.8 62.7 8.8 +/- 1.52 9.8 +/- 1.52 0.040 / 0.050 G23 314.1 43.9 6.5 +/- 1.52 8.9 +/- 1.52 0.030 / 0.040 G26 80.3 53.7 7.0 +/- 0.94 8.5 +/- 0.94 0.050 / 0.040 G31 49.3 24.4 6.6 +/- 1.22 13.0 +/- 1.22 0.050 / 0.090