PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/09-00:58:00 G08 300.9 20.8 7.0 +/- 1.93 15.1 +/- 1.93 0.060 / 0.090 G10 3.6 62.7 7.5 +/- 0.60 8.4 +/- 0.60 0.060 / 0.090 G14 226.2 42.1 9.8 +/- 1.40 13.8 +/- 1.40 0.050 / 0.060 G20 60.4 54.0 9.4 +/- 0.56 11.3 +/- 0.56 0.040 / 0.060 G21 145.0 44.7 9.5 +/- 0.65 12.9 +/- 0.65 0.090 / 0.120 G24 60.1 27.4 7.3 +/- 1.04 13.6 +/- 1.04 0.100 / 0.080 G27 258.7 33.7 10.5 +/- 1.16 17.1 +/- 1.16 0.130 / 0.250 G32 238.5 64.4 9.2 +/- 0.71 10.0 +/- 0.71 0.110 / 0.230