PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/20-03:43:00 G07 41.7 69.8 4.7 +/- 0.75 5.0 +/- 0.75 0.040 / 0.050 G08 53.4 42.0 18.6 +/- 0.66 26.3 +/- 0.66 0.040 / 0.050 G09 175.3 37.1 7.8 +/- 1.71 11.9 +/- 1.71 0.040 / 0.060 G11 126.1 33.8 7.8 +/- 0.63 12.6 +/- 0.63 0.040 / 0.070 G17 198.8 11.2 -3.4 +/- 17.58 -9.3 +/- 17.58 0.120 / 0.280 G23 160.8 11.7 5.5 +/- 3.12 14.7 +/- 3.12 0.160 / 0.260 G27 37.7 10.3 3.4 +/- 3.59 9.3 +/- 3.59 0.080 / 0.160 G28 263.0 43.6 4.1 +/- 2.16 5.6 +/- 2.16 0.070 / 0.140 G30 324.4 54.5 4.7 +/- 1.10 5.7 +/- 1.10 0.060 / 0.100