PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2017/11/26-04:42:30 G07 4.0 66.1 4.1 +/- 0.63 4.4 +/- 0.63 0.050 / 0.130 G08 70.5 50.2 4.6 +/- 0.46 5.8 +/- 0.46 0.050 / 0.170 G09 181.1 56.2 5.7 +/- 1.04 6.8 +/- 1.04 0.030 / 0.030 G11 134.5 23.1 5.3 +/- 1.45 10.7 +/- 1.45 0.030 / 0.030 G23 159.8 26.3 4.6 +/- 1.38 8.7 +/- 1.38 0.040 / 0.050 G27 42.7 20.5 2.9 +/- 2.37 6.2 +/- 2.37 0.040 / 0.040 G28 252.9 42.3 5.0 +/- 2.13 7.1 +/- 2.13 0.060 / 0.030 G30 316.0 46.9 4.0 +/- 0.60 5.3 +/- 0.60 0.050 / 0.030