PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/08/16-23:13:00 G10 265.9 37.7 11.1 +/- 1.79 16.8 +/- 1.79 0.110 / 0.130 G13 42.3 18.9 8.0 +/- 0.69 18.1 +/- 0.69 0.110 / 0.160 G15 63.2 52.6 8.8 +/- 0.43 10.8 +/- 0.43 0.040 / 0.040 G16 278.2 12.7 9.3 +/- 1.54 24.4 +/- 1.54 0.050 / 0.040 G20 268.2 31.5 6.1 +/- 0.63 10.4 +/- 0.63 0.040 / 0.120 G21 357.3 70.7 9.3 +/- 0.74 9.8 +/- 0.74 0.070 / 0.110 G24 119.6 13.8 10.7 +/- 2.45 27.4 +/- 2.45 0.070 / 0.230 G27 319.2 17.8 7.5 +/- 1.68 17.4 +/- 1.68 0.070 / 0.230 G29 168.3 33.4 11.6 +/- 1.12 19.0 +/- 1.12 0.130 / 0.340