PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/12/10-09:58:00 G02 34.6 53.4 5.0 +/- 1.13 6.0 +/- 1.13 0.030 / 0.030 G05 144.5 60.7 7.2 +/- 0.68 8.1 +/- 0.68 0.030 / 0.030 G06 52.8 16.0 3.5 +/- 2.38 8.4 +/- 2.38 0.030 / 0.040 G12 194.1 67.8 6.3 +/- 0.77 6.7 +/- 0.77 0.030 / 0.030 G25 297.8 53.1 5.0 +/- 2.15 6.1 +/- 2.15 0.070 / 0.070 G29 305.9 26.4 5.7 +/- 1.17 10.7 +/- 1.17 0.040 / 0.050