PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/12/09-00:27:40 G03 196.6 34.4 8.3 +/- 1.26 13.3 +/- 1.26 0.030 / 0.030 G07 278.5 31.7 7.6 +/- 1.70 12.8 +/- 1.70 0.030 / 0.030 G08 147.9 18.0 10.4 +/- 2.97 23.9 +/- 2.97 0.090 / 0.320 G09 320.7 52.3 7.2 +/- 1.44 8.9 +/- 1.44 0.100 / 0.300 G16 50.7 51.9 5.5 +/- 0.46 6.7 +/- 0.46 0.050 / 0.110 G22 182.0 18.5 8.4 +/- 3.99 19.1 +/- 3.99 0.050 / 0.100 G23 3.5 79.7 5.3 +/- 0.82 5.4 +/- 0.82 0.040 / 0.070 G26 43.7 24.8 4.2 +/- 2.05 8.3 +/- 2.05 0.040 / 0.050 G27 116.9 26.2 10.5 +/- 1.12 20.0 +/- 1.12 0.060 / 0.100