PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/11-22:13:00 G08 310.6 17.9 10.0 +/- 1.45 23.3 +/- 1.45 0.050 / 0.070 G10 339.1 61.0 9.2 +/- 1.00 10.3 +/- 1.00 0.060 / 0.080 G14 218.6 30.2 12.7 +/- 1.28 22.1 +/- 1.28 0.040 / 0.060 G20 42.6 59.0 11.0 +/- 0.74 12.6 +/- 0.74 0.040 / 0.050 G21 136.2 56.3 11.6 +/- 0.88 13.6 +/- 0.88 0.070 / 0.220 G24 73.2 30.4 10.2 +/- 0.68 17.7 +/- 0.68 0.070 / 0.220 G27 272.9 37.5 12.7 +/- 0.86 19.3 +/- 0.86 0.090 / 0.220 G32 224.1 54.4 11.3 +/- 0.72 13.5 +/- 0.72 0.100 / 0.200