PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/14-21:12:30 G10 300.5 53.5 12.1 +/- 0.80 14.6 +/- 0.80 0.070 / 0.090 G15 46.0 27.7 8.3 +/- 1.81 15.3 +/- 1.81 0.060 / 0.090 G20 357.2 65.1 12.3 +/- 0.70 13.4 +/- 0.70 0.040 / 0.040 G21 96.9 74.3 12.6 +/- 0.56 13.0 +/- 0.56 0.040 / 0.040 G24 98.3 27.0 13.0 +/- 0.89 24.3 +/- 0.89 0.040 / 0.080 G27 300.1 34.7 11.8 +/- 0.74 18.9 +/- 0.74 0.060 / 0.110 G32 210.3 33.1 12.9 +/- 1.98 21.1 +/- 1.98 0.060 / 0.120