PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/11-17:13:00 G10 299.0 53.2 14.5 +/- 1.11 17.6 +/- 1.11 0.060 / 0.090 G15 45.8 25.9 12.5 +/- 1.08 23.9 +/- 1.08 0.060 / 0.080 G20 358.5 65.1 14.4 +/- 1.40 15.7 +/- 1.40 0.030 / 0.040 G21 94.9 74.1 16.1 +/- 1.42 16.7 +/- 1.42 0.030 / 0.040 G24 99.9 26.6 17.7 +/- 0.77 33.3 +/- 0.77 0.040 / 0.040 G27 301.1 34.4 14.6 +/- 1.87 23.4 +/- 1.87 0.040 / 0.040 G32 209.6 33.0 16.8 +/- 1.67 27.7 +/- 1.67 0.070 / 0.140