PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/07/15-01:42:50 G10 273.4 41.8 11.9 +/- 1.41 16.8 +/- 1.41 0.060 / 0.150 G13 39.6 13.8 8.1 +/- 3.01 20.8 +/- 3.01 0.100 / 0.130 G15 55.1 46.3 10.7 +/- 0.93 14.1 +/- 0.93 0.050 / 0.030 G20 289.1 52.5 10.8 +/- 0.61 13.2 +/- 0.61 0.040 / 0.040 G21 16.0 74.8 11.9 +/- 0.60 12.3 +/- 0.60 0.300 / 0.360 G24 114.4 17.6 11.0 +/- 1.53 25.6 +/- 1.53 0.260 / 0.280 G27 315.7 23.1 8.7 +/- 1.51 17.7 +/- 1.51 0.100 / 0.170 G29 168.8 26.2 11.4 +/- 1.61 21.7 +/- 1.61 0.100 / 0.160 G32 204.8 16.0 16.2 +/- 3.02 39.4 +/- 3.02 0.040 / 0.050