PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/10/05-15:12:00 G02 48.3 41.8 7.0 +/- 0.62 9.9 +/- 0.62 0.030 / 0.030 G05 95.5 70.8 8.1 +/- 0.63 8.5 +/- 0.63 0.030 / 0.030 G12 185.4 46.1 10.0 +/- 1.58 13.3 +/- 1.58 0.030 / 0.060 G25 262.2 57.9 8.7 +/- 0.95 10.1 +/- 0.95 0.050 / 0.060 G29 319.4 41.9 8.0 +/- 0.82 11.3 +/- 0.82 0.070 / 0.070