PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/05/05-00:12:30 G02 8.1 71.9 8.0 +/- 0.47 8.4 +/- 0.47 0.060 / 0.120 G05 159.0 42.2 11.7 +/- 0.84 16.4 +/- 0.84 0.060 / 0.080 G06 43.0 35.1 6.8 +/- 0.66 10.7 +/- 0.66 0.060 / 0.030 G12 295.9 75.6 7.1 +/- 1.13 7.3 +/- 1.13 0.050 / 0.040 G19 82.1 21.8 6.9 +/- 1.59 14.6 +/- 1.59 0.150 / 0.290 G24 221.6 16.8 9.3 +/- 3.08 22.2 +/- 3.08 0.100 / 0.260 G25 314.8 36.6 9.1 +/- 1.35 14.0 +/- 1.35 0.030 / 0.030 G29 293.2 16.7 7.1 +/- 1.53 17.0 +/- 1.53 0.020 / 0.030