PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/03/02-05:12:30 G02 30.1 57.7 4.2 +/- 0.69 4.9 +/- 0.69 0.030 / 0.040 G05 144.3 58.7 7.4 +/- 0.85 8.5 +/- 0.85 0.030 / 0.030 G06 49.5 24.3 0.4 +/- 2.19 0.7 +/- 2.19 0.040 / 0.060 G12 213.8 73.8 5.7 +/- 0.70 5.9 +/- 0.70 0.040 / 0.060 G19 96.2 12.5 4.8 +/- 1.70 12.8 +/- 1.70 0.030 / 0.050 G25 300.3 52.9 4.0 +/- 0.79 4.8 +/- 0.79 0.040 / 0.050 G29 306.6 29.2 2.9 +/- 1.08 5.2 +/- 1.08 0.080 / 0.110