PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/14-22:58:00 G08 285.1 21.8 11.5 +/- 1.04 24.1 +/- 1.04 0.070 / 0.130 G10 35.0 61.5 10.8 +/- 1.36 12.1 +/- 1.36 0.060 / 0.150 G14 239.8 53.5 12.8 +/- 2.63 15.5 +/- 2.63 0.120 / 0.090 G18 317.4 19.7 8.8 +/- 1.64 19.6 +/- 1.64 0.110 / 0.090 G20 80.5 45.0 11.2 +/- 1.14 15.0 +/- 1.14 0.170 / 0.270 G21 151.7 30.5 13.2 +/- 1.31 22.9 +/- 1.31 0.320 / 0.330 G24 48.3 20.6 10.3 +/- 2.15 22.3 +/- 2.15 0.090 / 0.210 G27 243.8 25.9 13.0 +/- 1.36 24.9 +/- 1.36 0.110 / 0.240 G31 180.4 17.0 11.3 +/- 1.70 26.7 +/- 1.70 0.030 / 0.030 G32 277.6 75.3 11.2 +/- 0.42 11.6 +/- 0.42 0.030 / 0.030