PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/30-14:28:00 G05 46.9 23.0 3.1 +/- 0.85 6.3 +/- 0.85 0.100 / 0.410 G13 81.9 36.0 5.8 +/- 0.60 9.0 +/- 0.60 0.100 / 0.350 G15 134.1 48.5 7.7 +/- 0.91 9.8 +/- 0.91 0.050 / 0.110 G20 243.8 33.1 8.5 +/- 1.44 13.9 +/- 1.44 0.050 / 0.110 G21 310.7 45.8 5.2 +/- 1.04 6.9 +/- 1.04 0.050 / 0.080 G25 197.5 12.3 3.8 +/- 2.88 10.0 +/- 2.88 0.050 / 0.070 G26 294.6 19.6 5.6 +/- 2.28 12.4 +/- 2.28 0.030 / 0.030 G29 147.4 76.9 6.0 +/- 0.91 6.1 +/- 0.91 0.030 / 0.020