PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/09/25-19:28:10 G05 51.6 12.7 6.9 +/- 3.83 18.0 +/- 3.83 0.050 / 0.060 G10 242.1 19.2 9.6 +/- 1.60 21.6 +/- 1.60 0.050 / 0.070 G13 64.6 34.4 8.1 +/- 1.12 13.0 +/- 1.12 0.080 / 0.370 G15 118.2 57.1 9.9 +/- 0.45 11.6 +/- 0.45 0.090 / 0.360 G16 305.7 15.0 5.6 +/- 2.04 13.9 +/- 2.04 0.160 / 0.150 G20 256.7 43.4 9.9 +/- 1.51 13.7 +/- 1.51 0.090 / 0.150 G21 322.1 52.9 9.4 +/- 0.74 11.5 +/- 0.74 0.070 / 0.110 G26 278.4 19.0 7.5 +/- 0.91 17.0 +/- 0.91 0.070 / 0.110 G29 160.8 62.8 10.8 +/- 0.51 12.0 +/- 0.51 0.030 / 0.040