PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/09/25-21:42:40 G08 298.5 21.8 9.8 +/- 0.91 20.7 +/- 0.91 0.050 / 0.070 G10 5.5 62.7 8.7 +/- 1.09 9.7 +/- 1.09 0.040 / 0.060 G14 226.6 41.1 11.7 +/- 2.05 16.7 +/- 2.05 0.080 / 0.120 G20 63.0 52.6 10.0 +/- 0.99 12.2 +/- 0.99 0.070 / 0.130 G21 145.4 44.0 11.3 +/- 0.73 15.4 +/- 0.73 0.030 / 0.020 G24 59.9 27.5 8.4 +/- 1.88 15.4 +/- 1.88 0.030 / 0.030 G27 257.6 33.5 11.6 +/- 1.33 19.0 +/- 1.33 0.080 / 0.080 G32 240.2 66.3 10.4 +/- 0.76 11.2 +/- 0.76 0.090 / 0.110