PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/02/10-06:42:40 G02 33.3 55.0 3.7 +/- 0.68 4.4 +/- 0.68 0.020 / 0.030 G05 139.6 61.7 5.9 +/- 0.58 6.6 +/- 0.58 0.020 / 0.030 G06 51.8 20.3 3.0 +/- 3.72 6.5 +/- 3.72 0.030 / 0.030 G12 204.8 70.1 5.1 +/- 0.44 5.4 +/- 0.44 0.030 / 0.030 G19 99.0 10.7 5.7 +/- 1.81 15.5 +/- 1.81 0.130 / 0.250 G25 294.1 56.0 4.7 +/- 3.32 5.5 +/- 3.32 0.130 / 0.220 G29 308.8 30.9 4.3 +/- 1.52 7.4 +/- 1.52 0.150 / 0.180