PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/13-23:43:00 G08 266.6 16.6 8.7 +/- 15.72 20.9 +/- 15.72 0.460 / 0.490 G10 70.2 55.0 10.0 +/- 0.32 12.0 +/- 0.32 0.550 / 0.490 G11 309.9 18.2 9.7 +/- 1.51 22.4 +/- 1.51 0.170 / 0.510 G14 271.8 66.7 9.3 +/- 0.82 10.0 +/- 0.82 0.180 / 0.420 G18 310.1 35.8 8.2 +/- 2.26 12.8 +/- 2.26 0.100 / 0.050 G20 100.0 32.9 10.5 +/- 1.42 17.4 +/- 1.42 0.130 / 0.060 G21 156.0 12.4 11.9 +/- 1.77 31.5 +/- 1.77 0.540 / 0.600 G27 228.9 13.6 9.4 +/- 24.55 24.2 +/- 24.55 0.550 / 0.640 G31 176.2 35.6 12.7 +/- 0.78 19.9 +/- 0.78 0.140 / 0.140 G32 352.7 72.1 9.6 +/- 0.35 10.0 +/- 0.35 0.150 / 0.120