PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/12-21:58:00 G08 314.5 15.7 9.0 +/- 1.69 21.9 +/- 1.69 0.040 / 0.050 G10 329.3 59.8 9.6 +/- 0.45 10.9 +/- 0.45 0.040 / 0.050 G14 216.2 25.6 14.8 +/- 3.25 28.6 +/- 3.25 0.170 / 0.260 G15 46.4 13.4 7.4 +/- 3.00 19.3 +/- 3.00 0.130 / 0.240 G20 33.5 61.0 12.6 +/- 0.64 14.2 +/- 0.64 0.320 / 0.220 G21 130.8 60.9 13.8 +/- 0.89 15.6 +/- 0.89 0.070 / 0.210 G24 79.1 30.6 11.5 +/- 1.03 20.0 +/- 1.03 0.170 / 0.330 G27 279.4 38.0 11.3 +/- 1.57 17.1 +/- 1.57 0.160 / 0.330 G32 219.9 49.6 13.3 +/- 1.55 16.9 +/- 1.55 0.030 / 0.040