PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/24-22:58:10 G10 249.3 24.7 14.7 +/- 2.03 29.0 +/- 2.03 0.040 / 0.050 G13 56.2 32.2 12.0 +/- 0.51 20.0 +/- 0.51 0.040 / 0.060 G15 91.8 58.1 13.9 +/- 0.40 16.1 +/- 0.40 0.120 / 0.450 G16 299.6 14.3 10.2 +/- 1.33 25.7 +/- 1.33 0.110 / 0.390 G18 266.4 54.5 14.7 +/- 1.11 17.6 +/- 1.11 0.070 / 0.140 G20 42.3 49.0 10.7 +/- 0.93 13.6 +/- 0.93 0.070 / 0.130 G21 332.2 59.6 11.9 +/- 1.18 13.5 +/- 1.18 0.030 / 0.050 G26 271.9 15.9 14.1 +/- 3.33 34.3 +/- 3.33 0.030 / 0.050 G29 163.1 48.5 16.1 +/- 1.91 20.7 +/- 1.91 0.090 / 0.350