PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/09-22:42:40 G10 266.5 39.2 13.0 +/- 1.65 19.2 +/- 1.65 0.090 / 0.140 G13 41.8 17.8 8.2 +/- 1.03 19.0 +/- 1.03 0.090 / 0.160 G15 60.0 49.5 10.6 +/- 0.78 13.5 +/- 0.78 0.170 / 0.390 G16 280.0 12.8 10.6 +/- 1.71 27.8 +/- 1.71 0.160 / 0.430 G20 296.4 59.8 10.7 +/- 0.61 12.2 +/- 0.61 0.080 / 0.050 G21 359.2 70.7 10.8 +/- 0.38 11.3 +/- 0.38 0.080 / 0.050 G24 122.2 13.7 12.0 +/- 2.49 30.9 +/- 2.49 0.150 / 0.450 G27 319.4 17.7 9.6 +/- 0.55 22.4 +/- 0.55 0.160 / 0.430 G29 166.9 32.0 13.5 +/- 1.55 22.8 +/- 1.55 0.060 / 0.090