PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/10/06-18:43:10 G05 51.5 13.2 7.2 +/- 1.23 18.6 +/- 1.23 0.040 / 0.070 G10 242.1 19.3 11.0 +/- 1.35 24.7 +/- 1.35 0.050 / 0.080 G13 64.6 34.4 9.5 +/- 0.74 15.3 +/- 0.74 0.060 / 0.110 G15 116.9 57.1 10.4 +/- 0.39 12.1 +/- 0.39 0.060 / 0.140 G16 305.9 14.9 7.1 +/- 2.83 17.7 +/- 2.83 0.140 / 0.470 G20 256.8 43.4 2.3 +/- 0.94 3.2 +/- 0.94 0.130 / 0.580 G21 322.4 53.1 0.2 +/- 1.43 0.3 +/- 1.43 0.040 / 0.040 G26 278.7 18.9 7.7 +/- 1.09 17.4 +/- 1.09 0.040 / 0.050 G29 160.6 62.6 10.8 +/- 0.88 12.0 +/- 0.88 0.060 / 0.180