PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/27-16:58:00 G10 292.1 50.2 8.0 +/- 0.62 10.1 +/- 0.62 0.050 / 0.090 G15 47.3 33.4 5.7 +/- 0.38 9.3 +/- 0.38 0.060 / 0.090 G20 343.1 65.4 6.4 +/- 1.02 7.0 +/- 1.02 0.070 / 0.130 G21 88.3 74.1 8.5 +/- 1.03 8.8 +/- 1.03 0.060 / 0.140 G24 97.1 24.6 7.6 +/- 0.59 15.0 +/- 0.59 0.040 / 0.050 G27 306.3 30.8 7.0 +/- 1.24 12.1 +/- 1.24 0.040 / 0.050 G29 167.7 10.3 11.2 +/- 3.26 31.0 +/- 3.26 0.170 / 0.270 G32 209.0 27.7 10.8 +/- 0.92 19.9 +/- 0.92 0.170 / 0.280