PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/11-01:13:00 G05 46.7 21.9 6.8 +/- 1.77 14.4 +/- 1.77 0.290 / 0.320 G13 84.0 35.3 12.2 +/- 1.44 19.3 +/- 1.44 0.110 / 0.280 G15 132.3 47.7 14.1 +/- 0.44 18.3 +/- 0.44 0.060 / 0.080 G20 242.3 31.5 13.1 +/- 2.26 22.2 +/- 2.26 0.070 / 0.070 G21 307.1 42.4 11.1 +/- 1.03 15.5 +/- 1.03 0.050 / 0.100 G25 203.2 17.1 13.9 +/- 3.73 32.8 +/- 3.73 0.050 / 0.110 G26 296.0 19.6 7.8 +/- 1.04 17.2 +/- 1.04 0.050 / 0.050 G29 141.2 78.1 11.7 +/- 0.41 11.9 +/- 0.41 0.040 / 0.040