PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/19-22:58:00 G01 221.2 14.1 7.9 +/- 3.64 20.1 +/- 3.64 0.040 / 0.040 G03 281.1 68.7 6.9 +/- 0.80 7.3 +/- 0.80 0.050 / 0.030 G09 297.1 13.1 7.9 +/- 2.81 20.4 +/- 2.81 0.080 / 0.180 G14 87.0 26.3 7.7 +/- 1.91 14.7 +/- 1.91 0.110 / 0.210 G16 140.1 48.6 8.2 +/- 0.88 10.6 +/- 0.88 0.030 / 0.030 G22 213.6 67.8 7.3 +/- 0.73 7.8 +/- 0.73 0.030 / 0.030 G23 310.0 39.9 7.4 +/- 1.18 10.8 +/- 1.18 0.050 / 0.080 G26 90.4 54.3 6.7 +/- 0.80 8.1 +/- 0.80 0.040 / 0.090 G31 47.0 28.8 6.0 +/- 1.74 10.9 +/- 1.74 0.070 / 0.100