PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/08-01:57:50 G08 275.0 19.1 9.1 +/- 0.74 20.4 +/- 0.74 0.150 / 0.480 G10 56.9 58.4 15.5 +/- 0.66 17.9 +/- 0.66 0.120 / 0.230 G14 257.4 63.2 10.9 +/- 0.74 12.1 +/- 0.74 0.170 / 0.280 G18 314.1 29.6 8.6 +/- 1.30 15.1 +/- 1.30 0.140 / 0.320 G20 92.1 38.9 9.3 +/- 0.98 13.8 +/- 0.98 0.060 / 0.050 G21 154.7 19.6 9.5 +/- 2.20 21.2 +/- 2.20 0.040 / 0.060 G24 41.6 12.9 6.8 +/- 2.10 17.7 +/- 2.10 0.100 / 0.170 G27 234.7 18.7 9.4 +/- 4.65 21.4 +/- 4.65 0.090 / 0.130 G31 177.8 28.0 12.4 +/- 2.62 22.7 +/- 2.62 0.030 / 0.030 G32 322.8 75.7 10.9 +/- 0.46 11.2 +/- 0.46 0.030 / 0.020