PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/07/26-03:12:40 G08 311.5 18.3 6.6 +/- 2.43 15.2 +/- 2.43 0.030 / 0.040 G10 322.7 58.2 7.4 +/- 0.99 8.6 +/- 0.99 0.030 / 0.040 G14 216.1 28.9 12.4 +/- 1.74 22.3 +/- 1.74 0.060 / 0.090 G15 46.1 16.6 6.3 +/- 0.66 15.1 +/- 0.66 0.060 / 0.080 G18 28.4 62.0 7.7 +/- 0.65 8.6 +/- 0.65 0.040 / 0.050 G21 129.3 61.0 9.5 +/- 1.06 10.7 +/- 1.06 0.040 / 0.060 G24 80.2 30.5 8.1 +/- 0.96 14.1 +/- 0.96 0.110 / 0.200 G27 278.1 38.0 11.1 +/- 2.48 16.7 +/- 2.48 0.090 / 0.170 G32 220.3 47.6 9.6 +/- 0.69 12.5 +/- 0.69 0.060 / 0.120