PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/12/06-22:27:50 G03 228.2 65.3 8.9 +/- 1.45 9.6 +/- 1.45 0.050 / 0.060 G07 251.4 11.0 -3.9 +/- 20.40 -10.6 +/- 20.40 0.050 / 0.050 G09 308.1 26.9 7.6 +/- 2.03 14.2 +/- 2.03 0.120 / 0.410 G14 102.2 14.6 10.1 +/- 1.85 25.5 +/- 1.85 0.170 / 0.380 G16 110.7 61.4 9.0 +/- 0.72 10.1 +/- 0.72 0.050 / 0.030 G22 194.2 50.0 9.9 +/- 0.66 12.5 +/- 0.66 0.050 / 0.040 G23 323.3 53.3 7.8 +/- 0.29 9.5 +/- 0.29 0.040 / 0.060 G26 61.8 48.4 6.2 +/- 0.84 8.0 +/- 0.84 0.040 / 0.060 G31 55.3 15.5 7.5 +/- 2.33 18.6 +/- 2.33 0.110 / 0.230