PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/25-00:58:00 G08 315.7 15.5 9.7 +/- 2.48 23.8 +/- 2.48 0.040 / 0.040 G10 313.2 56.0 8.9 +/- 1.40 10.5 +/- 1.40 0.040 / 0.040 G14 213.6 23.6 13.0 +/- 3.25 26.2 +/- 3.25 0.080 / 0.080 G15 45.6 20.1 9.6 +/- 2.61 21.2 +/- 2.61 0.080 / 0.090 G18 19.7 63.5 9.7 +/- 0.74 10.7 +/- 0.74 0.050 / 0.070 G20 79.5 10.3 10.6 +/- 2.81 29.5 +/- 2.81 0.050 / 0.060 G21 121.9 65.3 10.8 +/- 0.57 11.8 +/- 0.57 0.090 / 0.080 G24 86.8 29.8 10.9 +/- 1.91 19.1 +/- 1.91 0.060 / 0.050 G27 285.4 37.9 8.3 +/- 1.14 12.5 +/- 1.14 0.110 / 0.260 G32 216.7 41.1 10.9 +/- 1.07 15.6 +/- 1.07 0.150 / 0.260