PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/14-22:28:10 G10 244.7 21.6 12.4 +/- 1.86 26.2 +/- 1.86 0.040 / 0.040 G13 60.7 33.3 8.3 +/- 0.84 13.6 +/- 0.84 0.030 / 0.050 G15 108.1 58.3 10.9 +/- 0.58 12.5 +/- 0.58 0.130 / 0.420 G16 301.3 16.0 7.0 +/- 1.82 16.9 +/- 1.82 0.170 / 0.390 G20 249.4 16.8 13.0 +/- 2.47 31.1 +/- 2.47 0.060 / 0.110 G21 324.2 54.3 9.2 +/- 0.41 11.1 +/- 0.41 0.050 / 0.100 G26 273.3 18.4 10.1 +/- 2.52 23.0 +/- 2.52 0.030 / 0.030 G29 162.9 59.6 10.0 +/- 0.57 11.4 +/- 0.57 0.030 / 0.030