PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/08/29-01:28:00 G08 297.2 23.0 9.1 +/- 0.58 18.6 +/- 0.58 0.030 / 0.040 G10 353.3 62.4 7.6 +/- 0.82 8.5 +/- 0.82 0.030 / 0.030 G14 225.8 43.3 13.7 +/- 0.95 19.0 +/- 0.95 0.040 / 0.070 G18 55.1 54.6 8.5 +/- 0.55 10.2 +/- 0.55 0.050 / 0.070 G21 142.9 45.0 12.9 +/- 1.14 17.3 +/- 1.14 0.060 / 0.080 G24 62.7 28.6 7.8 +/- 0.53 14.0 +/- 0.53 0.050 / 0.080 G27 258.6 34.0 12.6 +/- 1.60 20.3 +/- 1.60 0.070 / 0.120 G32 236.1 61.0 12.1 +/- 0.66 13.6 +/- 0.66 0.070 / 0.090