PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/10-18:28:00 G10 266.1 39.1 15.3 +/- 1.09 22.6 +/- 1.09 0.050 / 0.050 G13 42.1 18.1 10.9 +/- 0.54 25.2 +/- 0.54 0.040 / 0.040 G15 59.8 48.9 13.7 +/- 0.63 17.5 +/- 0.63 0.070 / 0.210 G16 279.6 13.1 12.5 +/- 2.57 32.6 +/- 2.57 0.080 / 0.210 G20 298.2 60.8 14.1 +/- 0.43 15.9 +/- 0.43 0.090 / 0.140 G21 358.9 70.5 15.3 +/- 0.66 16.1 +/- 0.66 0.080 / 0.150 G24 123.4 13.3 17.7 +/- 2.33 45.8 +/- 2.33 0.120 / 0.410 G27 319.4 17.6 12.1 +/- 1.18 28.1 +/- 1.18 0.150 / 0.340 G29 167.2 33.6 18.2 +/- 1.69 29.6 +/- 1.69 0.120 / 0.400