PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/08/22-19:13:00 G02 69.3 25.9 7.7 +/- 0.67 14.8 +/- 0.67 0.100 / 0.210 G05 46.6 49.1 7.6 +/- 0.69 9.7 +/- 0.69 0.110 / 0.230 G12 181.5 19.1 11.4 +/- 1.11 25.6 +/- 1.11 0.170 / 0.290 G13 114.8 23.9 9.0 +/- 1.96 18.1 +/- 1.96 0.130 / 0.340 G15 156.6 23.7 12.3 +/- 2.14 24.7 +/- 2.14 0.050 / 0.080 G21 282.8 24.9 12.2 +/- 1.15 24.0 +/- 1.15 0.050 / 0.090 G25 221.6 41.3 11.8 +/- 1.82 16.9 +/- 1.82 0.030 / 0.060 G26 318.3 10.9 -4.1 +/- 37.27 -11.1 +/- 37.27 0.030 / 0.050 G29 339.1 68.2 8.2 +/- 0.59 8.8 +/- 0.59 0.080 / 0.290