PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/25-00:42:30 G02 36.1 52.9 10.2 +/- 1.14 12.5 +/- 1.14 0.030 / 0.030 G05 130.8 64.6 11.6 +/- 0.53 12.7 +/- 0.53 0.040 / 0.040 G06 55.5 13.1 7.6 +/- 2.72 19.7 +/- 2.72 0.030 / 0.030 G12 194.6 64.3 11.7 +/- 0.61 12.8 +/- 0.61 0.030 / 0.030 G19 101.7 9.5 12.5 +/- 2.28 35.2 +/- 2.28 0.090 / 0.160 G25 293.5 54.5 10.7 +/- 1.58 12.9 +/- 1.58 0.100 / 0.140 G29 308.8 29.1 9.2 +/- 1.48 16.4 +/- 1.48 0.050 / 0.060