PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/02-00:42:30 G02 48.1 42.3 10.1 +/- 0.46 14.1 +/- 0.46 0.040 / 0.060 G05 89.1 68.6 9.5 +/- 0.49 10.2 +/- 0.49 0.040 / 0.080 G12 187.1 47.6 12.3 +/- 1.89 16.0 +/- 1.89 0.020 / 0.040 G25 264.6 58.1 9.9 +/- 0.67 11.4 +/- 0.67 0.020 / 0.040 G29 318.4 40.6 11.3 +/- 1.54 16.3 +/- 1.54 0.040 / 0.080