PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/10/10-20:12:50 G10 259.9 32.9 13.9 +/- 1.59 23.0 +/- 1.59 0.060 / 0.100 G13 46.4 24.8 12.4 +/- 1.24 24.4 +/- 1.24 0.060 / 0.090 G15 67.6 53.0 12.6 +/- 0.36 15.4 +/- 0.36 0.100 / 0.490 G16 290.1 12.7 13.0 +/- 1.31 34.2 +/- 1.31 0.110 / 0.470 G18 287.6 62.1 13.2 +/- 0.79 14.7 +/- 0.79 0.140 / 0.330 G20 49.6 40.4 12.0 +/- 0.43 17.3 +/- 0.43 0.140 / 0.430 G21 353.6 68.7 13.0 +/- 0.85 13.9 +/- 0.85 0.040 / 0.040 G26 263.1 11.0 11.2 +/- 4.58 30.6 +/- 4.58 0.040 / 0.040 G27 320.5 14.8 11.2 +/- 2.51 28.1 +/- 2.51 0.190 / 0.400 G29 164.8 33.4 15.2 +/- 1.40 24.9 +/- 1.40 0.170 / 0.510