PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/30-15:13:00 G10 246.9 24.1 7.5 +/- 1.91 15.0 +/- 1.91 0.120 / 0.360 G13 57.6 31.7 5.7 +/- 0.44 9.7 +/- 0.44 0.090 / 0.350 G15 98.8 58.5 7.7 +/- 0.60 8.9 +/- 0.60 0.040 / 0.060 G16 301.1 15.0 3.9 +/- 1.98 9.8 +/- 1.98 0.040 / 0.060 G20 264.3 48.0 8.7 +/- 0.91 11.3 +/- 0.91 0.050 / 0.030 G21 332.2 59.0 4.9 +/- 0.80 5.7 +/- 0.80 0.030 / 0.030 G26 274.3 16.8 7.5 +/- 4.03 17.7 +/- 4.03 0.060 / 0.120 G29 162.1 53.8 8.3 +/- 0.89 10.0 +/- 0.89 0.060 / 0.110