PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/15-16:12:30 G02 241.2 73.6 10.0 +/- 0.61 10.4 +/- 0.61 0.050 / 0.070 G05 172.2 15.8 10.0 +/- 0.55 24.3 +/- 0.55 0.050 / 0.060 G06 40.4 57.2 9.1 +/- 1.04 10.6 +/- 1.04 0.150 / 0.490 G12 321.2 51.7 9.7 +/- 1.07 12.0 +/- 1.07 0.170 / 0.420 G17 68.9 25.0 8.7 +/- 1.33 17.0 +/- 1.33 0.030 / 0.050 G19 58.2 36.8 7.7 +/- 0.49 11.9 +/- 0.49 0.040 / 0.040 G24 245.8 34.4 11.3 +/- 0.98 18.2 +/- 0.98 0.090 / 0.110 G25 316.3 11.6 -1.6 +/- 36.54 -4.3 +/- 36.54 0.090 / 0.120