PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/09-16:28:10 G02 232.9 70.5 11.5 +/- 0.67 12.1 +/- 0.67 0.090 / 0.100 G05 173.5 12.6 12.3 +/- 4.42 32.3 +/- 4.42 0.080 / 0.090 G06 41.7 61.2 9.2 +/- 0.59 10.4 +/- 0.59 0.050 / 0.110 G12 320.9 47.6 10.7 +/- 0.98 13.9 +/- 0.98 0.050 / 0.090 G17 65.4 27.7 8.5 +/- 1.59 15.7 +/- 1.59 0.030 / 0.040 G19 54.3 39.3 10.0 +/- 1.39 14.8 +/- 1.39 0.040 / 0.040 G24 249.9 36.4 12.8 +/- 1.72 19.8 +/- 1.72 0.030 / 0.040