PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/07/29-04:12:40 G08 278.9 22.4 5.7 +/- 1.52 11.9 +/- 1.52 0.030 / 0.030 G10 31.8 62.8 3.3 +/- 0.57 3.7 +/- 0.57 0.030 / 0.030 G11 317.2 10.3 -7.9 +/- 6.33 -22.0 +/- 6.33 0.060 / 0.150 G14 244.4 58.5 6.7 +/- 0.99 7.7 +/- 0.99 0.080 / 0.160 G18 76.4 46.0 -82.7 +/- 31.10 -109.9 +/- 31.10 0.070 / 0.060 G21 151.0 28.4 6.8 +/- 1.23 12.4 +/- 1.23 0.060 / 0.060 G24 47.5 20.4 3.6 +/- 0.66 7.9 +/- 0.66 0.070 / 0.140 G27 241.1 24.3 5.7 +/- 1.98 11.4 +/- 1.98 0.070 / 0.160 G31 181.0 17.1 6.8 +/- 4.90 16.1 +/- 4.90 0.080 / 0.160 G32 279.7 74.5 4.9 +/- 0.63 5.1 +/- 0.63 0.070 / 0.190