PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/07-18:27:50 G10 260.3 35.5 13.5 +/- 1.38 21.3 +/- 1.38 0.100 / 0.180 G13 45.1 22.1 9.8 +/- 0.82 20.4 +/- 0.82 0.090 / 0.190 G15 66.9 52.8 11.9 +/- 0.52 14.5 +/- 0.52 0.050 / 0.060 G16 284.9 14.6 10.6 +/- 2.67 26.5 +/- 2.67 0.050 / 0.050 G20 287.8 58.1 13.4 +/- 0.90 15.5 +/- 0.90 0.080 / 0.290 G21 348.3 66.7 11.7 +/- 0.52 12.7 +/- 0.52 0.070 / 0.260 G24 127.8 10.0 -15.2 +/- 32.21 -42.4 +/- 32.21 0.210 / 0.470 G26 258.8 11.1 12.1 +/- 2.20 33.0 +/- 2.20 0.160 / 0.370 G27 321.3 13.1 10.0 +/- 4.33 26.1 +/- 4.33 0.120 / 0.380 G29 166.3 39.5 14.3 +/- 0.57 21.0 +/- 0.57 0.030 / 0.050