PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/28-05:12:50 G08 286.2 22.5 7.5 +/- 1.16 15.6 +/- 1.16 0.060 / 0.120 G10 24.6 62.8 5.0 +/- 0.62 5.6 +/- 0.62 0.050 / 0.110 G14 236.9 49.9 8.0 +/- 1.55 10.1 +/- 1.55 0.110 / 0.150 G18 317.5 16.0 5.6 +/- 2.13 13.6 +/- 2.13 0.090 / 0.130 G20 72.0 51.2 5.7 +/- 0.44 7.1 +/- 0.44 0.040 / 0.090 G21 150.2 33.4 7.3 +/- 0.64 11.9 +/- 0.64 0.050 / 0.080 G24 49.1 21.0 2.8 +/- 1.03 5.9 +/- 1.03 0.030 / 0.030 G27 246.5 27.3 7.0 +/- 2.46 13.0 +/- 2.46 0.030 / 0.030 G31 180.7 14.8 5.7 +/- 1.88 14.1 +/- 1.88 0.080 / 0.200 G32 270.8 74.9 6.9 +/- 0.68 7.1 +/- 0.68 0.080 / 0.180