PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/09-18:12:40 G05 48.3 20.2 9.5 +/- 1.47 20.9 +/- 1.47 0.040 / 0.070 G10 236.4 13.0 10.0 +/- 3.20 26.2 +/- 3.20 0.050 / 0.070 G13 74.9 36.1 11.7 +/- 0.69 18.2 +/- 0.69 0.130 / 0.360 G15 130.7 52.0 13.1 +/- 0.91 16.1 +/- 0.91 0.100 / 0.390 G16 313.6 12.7 7.8 +/- 2.43 20.5 +/- 2.43 0.060 / 0.160 G20 248.4 37.2 11.5 +/- 1.16 17.6 +/- 1.16 0.080 / 0.130 G21 314.2 47.7 9.6 +/- 1.18 12.5 +/- 1.18 0.070 / 0.100 G26 287.3 20.2 7.5 +/- 1.86 16.4 +/- 1.86 0.060 / 0.110 G29 155.3 72.2 12.0 +/- 1.85 12.5 +/- 1.85 0.030 / 0.050