PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/04-00:42:40 G08 314.7 15.4 8.3 +/- 3.18 20.3 +/- 3.18 0.060 / 0.090 G10 330.1 59.9 7.7 +/- 1.06 8.8 +/- 1.06 0.050 / 0.090 G14 216.4 27.3 10.8 +/- 1.62 20.0 +/- 1.62 0.040 / 0.040 G15 46.5 12.4 6.5 +/- 2.15 17.2 +/- 2.15 0.030 / 0.030 G20 32.4 61.4 7.9 +/- 0.55 8.9 +/- 0.55 0.070 / 0.110 G21 131.5 60.4 8.7 +/- 0.90 9.8 +/- 0.90 0.290 / 0.340 G24 77.8 30.4 9.7 +/- 0.63 16.8 +/- 0.63 0.040 / 0.050 G27 279.0 37.9 10.2 +/- 1.72 15.4 +/- 1.72 0.030 / 0.050 G32 220.5 49.0 11.6 +/- 0.72 14.9 +/- 0.72 0.120 / 0.240