PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/29-21:43:00 G10 250.2 26.6 15.7 +/- 1.30 29.6 +/- 1.30 0.040 / 0.050 G13 53.8 29.9 10.5 +/- 1.05 18.4 +/- 1.05 0.030 / 0.050 G15 94.3 59.5 11.5 +/- 0.58 13.2 +/- 0.58 0.110 / 0.710 G16 294.3 16.1 8.6 +/- 2.84 20.9 +/- 2.84 0.150 / 0.710 G20 252.3 13.9 6.9 +/- 0.57 17.7 +/- 0.57 0.050 / 0.140 G21 331.7 59.1 10.7 +/- 0.62 12.3 +/- 0.62 0.060 / 0.180 G26 266.6 15.9 12.9 +/- 2.65 31.3 +/- 2.65 0.030 / 0.040 G29 165.1 51.8 12.6 +/- 1.28 15.5 +/- 1.28 0.030 / 0.050