PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/22-00:28:00 G05 46.7 22.0 6.4 +/- 1.88 13.4 +/- 1.88 0.290 / 0.440 G13 83.9 35.3 11.5 +/- 0.91 18.1 +/- 0.91 0.110 / 0.260 G15 132.5 47.7 11.6 +/- 0.36 15.0 +/- 0.36 0.100 / 0.090 G20 242.3 31.4 12.4 +/- 2.57 21.1 +/- 2.57 0.060 / 0.080 G21 307.0 42.2 9.7 +/- 0.99 13.7 +/- 0.99 0.050 / 0.110 G25 203.3 17.2 10.3 +/- 3.41 24.2 +/- 3.41 0.050 / 0.100 G26 295.7 19.8 7.9 +/- 1.73 17.5 +/- 1.73 0.050 / 0.060 G29 141.2 78.6 10.7 +/- 0.37 10.9 +/- 0.37 0.040 / 0.060