PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/07-03:12:40 G10 270.4 41.2 12.3 +/- 0.94 17.5 +/- 0.94 0.050 / 0.040 G13 40.4 15.3 6.8 +/- 2.92 16.9 +/- 2.92 0.060 / 0.040 G15 55.6 45.5 6.7 +/- 0.39 9.0 +/- 0.39 0.130 / 0.300 G16 278.5 11.3 10.2 +/- 2.72 27.5 +/- 2.72 0.140 / 0.260 G20 303.3 61.4 10.1 +/- 0.53 11.4 +/- 0.53 0.060 / 0.070 G21 11.4 73.3 10.8 +/- 0.85 11.2 +/- 0.85 0.080 / 0.060 G24 118.2 15.8 8.8 +/- 1.28 21.5 +/- 1.28 0.150 / 0.640 G27 318.0 20.0 8.4 +/- 1.97 18.5 +/- 1.97 0.140 / 0.520 G29 166.5 26.4 10.4 +/- 1.17 19.7 +/- 1.17 0.110 / 0.200