PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/28-18:12:30 G10 300.8 53.7 13.3 +/- 1.51 16.0 +/- 1.51 0.080 / 0.070 G15 45.7 25.4 11.5 +/- 1.73 22.2 +/- 1.73 0.080 / 0.080 G20 0.4 65.0 13.0 +/- 0.43 14.2 +/- 0.43 0.040 / 0.040 G21 98.2 73.7 14.6 +/- 0.92 15.1 +/- 0.92 0.040 / 0.040 G24 98.6 27.1 14.3 +/- 0.95 26.6 +/- 0.95 0.080 / 0.120 G27 299.8 34.9 13.3 +/- 1.52 21.2 +/- 1.52 0.070 / 0.140 G32 210.1 34.0 17.3 +/- 1.49 28.0 +/- 1.49 0.070 / 0.050