PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/10/24-13:12:40 G02 231.1 72.5 4.2 +/- 0.64 4.4 +/- 0.64 0.040 / 0.070 G05 175.2 11.0 -1.3 +/- 21.23 -3.4 +/- 21.23 0.040 / 0.060 G06 42.2 65.5 3.1 +/- 0.47 3.4 +/- 0.47 0.090 / 0.090 G12 321.1 46.7 4.6 +/- 1.52 6.0 +/- 1.52 0.050 / 0.100 G17 69.0 22.9 4.7 +/- 0.72 9.6 +/- 0.72 0.130 / 0.310 G19 54.6 39.8 4.4 +/- 0.67 6.5 +/- 0.67 0.140 / 0.370 G24 251.9 37.2 5.7 +/- 0.82 8.8 +/- 0.82 0.050 / 0.130 G25 316.0 10.4 -18.4 +/- 11.94 -50.9 +/- 11.94 0.060 / 0.120