PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/08-03:57:30 G07 318.6 52.5 5.1 +/- 0.96 6.2 +/- 0.96 0.060 / 0.040 G08 113.6 46.7 6.8 +/- 0.73 8.9 +/- 0.73 0.030 / 0.040 G09 205.3 82.7 6.1 +/- 0.45 6.1 +/- 0.45 0.060 / 0.060 G16 43.5 16.4 2.6 +/- 2.55 6.2 +/- 2.55 0.060 / 0.050 G23 151.2 56.6 6.0 +/- 0.35 7.0 +/- 0.35 0.280 / 0.280 G27 70.4 37.3 6.1 +/- 0.67 9.2 +/- 0.67 0.240 / 0.300 G28 228.5 18.3 5.9 +/- 1.80 13.6 +/- 1.80 0.030 / 0.020 G30 291.7 26.0 4.0 +/- 0.95 7.7 +/- 0.95 0.020 / 0.020