PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/10-04:42:50 G02 31.3 56.7 5.6 +/- 0.96 6.5 +/- 0.96 0.160 / 0.160 G05 142.2 59.9 8.0 +/- 0.78 9.1 +/- 0.78 0.110 / 0.180 G06 50.3 22.7 3.0 +/- 2.73 6.1 +/- 2.73 0.020 / 0.030 G12 210.9 72.7 6.1 +/- 0.72 6.4 +/- 0.72 0.030 / 0.030 G19 97.3 11.7 5.0 +/- 1.88 13.5 +/- 1.88 0.070 / 0.060 G25 298.9 53.5 5.2 +/- 1.72 6.3 +/- 1.72 0.050 / 0.060 G29 307.7 30.4 4.2 +/- 1.15 7.4 +/- 1.15 0.080 / 0.220