PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/10/10-13:57:30 G02 222.4 66.6 8.0 +/- 0.69 8.6 +/- 0.69 0.050 / 0.040 G06 47.2 70.4 7.9 +/- 0.52 8.3 +/- 0.52 0.040 / 0.050 G12 320.3 41.6 6.5 +/- 1.11 9.3 +/- 1.11 0.060 / 0.070 G17 64.6 26.1 5.4 +/- 0.71 10.3 +/- 0.71 0.030 / 0.050 G19 49.0 43.3 5.5 +/- 0.97 7.6 +/- 0.97 0.030 / 0.020 G24 258.8 39.5 7.9 +/- 1.51 11.6 +/- 1.51 0.030 / 0.020