PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/12-03:58:00 G07 18.8 68.6 5.7 +/- 0.68 6.1 +/- 0.68 0.040 / 0.050 G08 62.4 47.5 5.7 +/- 0.26 7.4 +/- 0.26 0.040 / 0.060 G09 176.2 46.2 12.4 +/- 2.01 16.5 +/- 2.01 0.040 / 0.050 G11 132.8 28.4 13.3 +/- 0.90 24.2 +/- 0.90 0.050 / 0.050 G23 160.3 19.3 10.1 +/- 1.86 22.6 +/- 1.86 0.080 / 0.260 G27 40.3 16.7 3.0 +/- 0.93 7.2 +/- 0.93 0.120 / 0.260 G28 254.1 38.4 10.5 +/- 1.82 15.7 +/- 1.82 0.090 / 0.160 G30 317.6 48.3 6.1 +/- 0.75 7.8 +/- 0.75 0.090 / 0.190