PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/05/02-00:28:00 G02 10.4 70.9 11.4 +/- 0.51 12.0 +/- 0.51 0.100 / 0.170 G05 158.2 43.5 15.8 +/- 0.95 21.7 +/- 0.95 0.110 / 0.180 G06 43.4 34.2 11.0 +/- 0.86 17.8 +/- 0.86 0.050 / 0.090 G12 291.5 76.5 12.2 +/- 1.09 12.5 +/- 1.09 0.050 / 0.090 G19 83.2 21.1 13.8 +/- 1.60 29.5 +/- 1.60 0.030 / 0.030 G24 220.7 15.9 16.0 +/- 3.39 38.9 +/- 3.39 0.030 / 0.030 G25 314.3 37.8 13.6 +/- 2.00 20.5 +/- 2.00 0.030 / 0.050 G29 294.2 17.6 12.2 +/- 2.18 28.6 +/- 2.18 0.030 / 0.060