PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/02-19:27:30 G10 280.6 46.4 12.9 +/- 1.08 17.1 +/- 1.08 0.080 / 0.160 G15 50.2 39.3 10.7 +/- 0.58 15.7 +/- 0.58 0.070 / 0.130 G20 324.3 64.5 11.7 +/- 0.54 12.9 +/- 0.54 0.040 / 0.050 G21 37.0 76.6 13.0 +/- 0.33 13.3 +/- 0.33 0.050 / 0.040 G24 112.8 20.3 13.7 +/- 1.29 29.9 +/- 1.29 0.080 / 0.170 G27 312.7 26.7 11.2 +/- 1.28 21.1 +/- 1.28 0.090 / 0.190 G29 168.2 20.9 13.6 +/- 1.56 29.3 +/- 1.56 0.040 / 0.060 G32 205.7 19.7 12.5 +/- 1.89 27.7 +/- 1.89 0.040 / 0.070