PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/11/25-06:28:10 G01 70.2 32.8 3.7 +/- 1.52 6.1 +/- 1.52 0.060 / 0.080 G07 137.6 28.7 5.9 +/- 1.42 10.5 +/- 1.42 0.060 / 0.110 G11 52.2 29.1 4.5 +/- 1.75 8.0 +/- 1.75 0.030 / 0.030 G13 273.3 37.9 6.2 +/- 2.03 9.4 +/- 2.03 0.030 / 0.030 G15 304.0 14.2 1.9 +/- 1.40 4.8 +/- 1.40 0.080 / 0.090 G17 235.5 72.4 7.1 +/- 0.60 7.4 +/- 0.60 0.060 / 0.090 G19 224.1 39.8 6.6 +/- 1.30 9.7 +/- 1.30 0.050 / 0.040 G28 16.9 59.9 5.0 +/- 0.75 5.6 +/- 0.75 0.040 / 0.050 G30 136.3 63.1 6.2 +/- 0.34 6.9 +/- 0.34 0.030 / 0.030