PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/16-23:57:30 G02 333.4 80.2 10.4 +/- 0.44 10.5 +/- 0.44 0.030 / 0.040 G05 164.5 31.5 17.5 +/- 1.60 29.7 +/- 1.60 0.030 / 0.040 G06 41.1 42.3 9.3 +/- 0.48 13.1 +/- 0.48 0.050 / 0.100 G12 315.1 68.9 10.6 +/- 0.89 11.2 +/- 0.89 0.040 / 0.100 G17 82.6 15.7 11.4 +/- 0.93 27.8 +/- 0.93 0.030 / 0.040 G19 71.5 30.3 12.6 +/- 0.66 22.0 +/- 0.66 0.030 / 0.040 G24 230.4 24.7 16.5 +/- 1.08 32.5 +/- 1.08 0.060 / 0.100 G25 317.7 25.5 10.4 +/- 2.21 20.1 +/- 2.21 0.050 / 0.090