PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/10/06-20:43:10 G10 266.5 37.2 18.4 +/- 0.93 28.0 +/- 0.93 0.150 / 0.310 G13 42.7 20.0 14.1 +/- 1.94 31.1 +/- 1.94 0.150 / 0.380 G15 59.4 48.8 17.6 +/- 0.77 22.6 +/- 0.77 0.040 / 0.040 G16 283.7 11.2 16.5 +/- 3.61 44.8 +/- 3.61 0.040 / 0.050 G18 301.1 64.6 15.3 +/- 0.43 16.8 +/- 0.43 0.160 / 0.550 G20 54.3 35.1 14.8 +/- 1.03 23.4 +/- 1.03 0.220 / 0.620 G21 8.4 72.6 17.9 +/- 0.63 18.7 +/- 0.63 0.070 / 0.120 G24 121.8 13.7 20.7 +/- 2.07 53.2 +/- 2.07 0.050 / 0.120 G27 317.9 20.0 15.7 +/- 1.69 34.5 +/- 1.69 0.140 / 0.250 G29 165.9 26.7 21.5 +/- 0.83 40.4 +/- 0.83 0.150 / 0.310