PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/22-22:43:00 G05 50.8 15.4 10.2 +/- 3.55 25.0 +/- 3.55 0.110 / 0.360 G10 241.1 16.8 17.2 +/- 2.27 40.9 +/- 2.27 0.130 / 0.330 G13 68.3 36.4 12.9 +/- 1.01 20.0 +/- 1.01 0.140 / 0.200 G15 114.2 55.9 14.8 +/- 0.84 17.4 +/- 0.84 0.110 / 0.150 G16 309.8 13.1 9.4 +/- 2.16 24.4 +/- 2.16 0.040 / 0.060 G18 252.7 47.0 13.4 +/- 3.73 17.5 +/- 3.73 0.050 / 0.050 G20 34.8 58.7 12.6 +/- 0.72 14.5 +/- 0.72 0.040 / 0.080 G21 320.2 52.2 12.1 +/- 0.96 14.9 +/- 0.96 0.050 / 0.110 G26 282.6 18.8 12.3 +/- 1.97 27.9 +/- 1.97 0.120 / 0.170 G29 158.9 60.9 13.9 +/- 0.57 15.6 +/- 0.57 0.120 / 0.130