PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/28-20:27:30 G10 309.5 56.0 11.9 +/- 1.14 14.1 +/- 1.14 0.030 / 0.030 G14 212.0 14.8 17.5 +/- 4.83 43.8 +/- 4.83 0.030 / 0.040 G15 45.6 22.0 9.7 +/- 2.41 20.3 +/- 2.41 0.180 / 0.480 G20 11.1 64.1 14.4 +/- 0.60 15.8 +/- 0.60 0.160 / 0.440 G21 112.4 70.3 15.3 +/- 0.80 16.1 +/- 0.80 0.130 / 0.310 G24 92.3 28.9 13.4 +/- 0.94 24.1 +/- 0.94 0.220 / 0.200 G27 293.6 36.7 12.2 +/- 3.69 18.7 +/- 3.69 0.060 / 0.080 G32 212.9 38.9 14.0 +/- 1.29 20.7 +/- 1.29 0.050 / 0.090