PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/09-06:12:50 G08 267.9 17.9 8.7 +/- 2.65 20.2 +/- 2.65 0.180 / 0.230 G10 64.3 56.8 4.5 +/- 0.85 5.3 +/- 0.85 0.310 / 0.310 G11 310.9 17.8 -5.5 +/- 10.59 -12.8 +/- 10.59 0.030 / 0.030 G14 268.3 67.1 6.7 +/- 1.08 7.3 +/- 1.08 0.040 / 0.030 G18 311.7 33.8 4.2 +/- 1.06 6.9 +/- 1.06 0.220 / 0.440 G20 96.4 36.0 5.7 +/- 1.15 8.9 +/- 1.15 0.170 / 0.430 G21 155.1 14.6 4.5 +/- 2.41 11.4 +/- 2.41 0.040 / 0.050 G27 232.0 15.9 7.8 +/- 2.58 18.9 +/- 2.58 0.040 / 0.050 G31 177.5 31.7 6.9 +/- 1.77 11.7 +/- 1.77 0.130 / 0.190 G32 330.8 74.3 6.5 +/- 0.81 6.8 +/- 0.81 0.120 / 0.190