PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/25-01:28:10 G07 305.7 46.4 5.5 +/- 1.41 7.2 +/- 1.41 0.160 / 0.240 G08 128.0 39.8 8.9 +/- 0.71 13.1 +/- 0.71 0.110 / 0.210 G09 300.9 82.6 5.7 +/- 0.69 5.8 +/- 0.69 0.050 / 0.080 G16 42.3 23.3 1.7 +/- 1.57 3.5 +/- 1.57 0.060 / 0.090 G23 143.3 65.5 6.5 +/- 0.61 7.1 +/- 0.61 0.100 / 0.260 G27 81.0 36.9 4.9 +/- 0.56 7.5 +/- 0.56 0.100 / 0.220 G30 283.6 18.5 5.7 +/- 1.93 12.9 +/- 1.93 0.030 / 0.050