PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/29-21:57:40 G10 256.2 31.3 14.2 +/- 2.69 24.2 +/- 2.69 0.040 / 0.050 G13 48.2 25.8 11.0 +/- 0.79 21.0 +/- 0.79 0.040 / 0.060 G15 80.0 58.3 11.5 +/- 0.62 13.2 +/- 0.62 0.150 / 0.470 G16 287.6 15.3 9.1 +/- 1.74 22.5 +/- 1.74 0.130 / 0.410 G20 257.3 18.4 7.9 +/- 0.66 18.1 +/- 0.66 0.070 / 0.220 G21 340.3 63.8 10.0 +/- 1.31 11.0 +/- 1.31 0.060 / 0.200 G26 260.4 13.0 12.5 +/- 1.07 32.5 +/- 1.07 0.020 / 0.040 G29 166.7 44.2 13.7 +/- 0.98 18.7 +/- 0.98 0.020 / 0.040