PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/11/26-18:28:00 G08 318.3 13.2 9.0 +/- 2.40 23.5 +/- 2.40 0.060 / 0.070 G10 309.5 55.1 8.7 +/- 1.95 10.4 +/- 1.95 0.070 / 0.070 G14 212.9 20.2 10.9 +/- 2.88 23.9 +/- 2.88 0.030 / 0.030 G15 45.4 19.7 9.7 +/- 2.29 21.4 +/- 2.29 0.030 / 0.030 G18 19.8 63.3 10.1 +/- 0.99 11.2 +/- 0.99 0.080 / 0.070 G20 76.9 14.3 9.7 +/- 2.38 24.6 +/- 2.38 0.060 / 0.090 G21 120.0 63.2 11.8 +/- 0.73 13.0 +/- 0.73 0.160 / 0.310 G24 89.5 29.3 12.7 +/- 1.43 22.5 +/- 1.43 0.110 / 0.300 G27 288.9 37.5 5.9 +/- 1.35 8.9 +/- 1.35 0.130 / 0.340 G32 215.2 38.9 11.1 +/- 1.00 16.4 +/- 1.00 0.200 / 0.270