PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/09-01:27:50 G02 74.2 20.9 8.6 +/- 1.66 18.4 +/- 1.66 0.030 / 0.060 G05 45.3 43.0 8.0 +/- 0.74 11.1 +/- 0.74 0.030 / 0.070 G12 180.2 13.6 16.2 +/- 2.51 41.6 +/- 2.51 0.070 / 0.180 G13 112.3 27.0 13.4 +/- 1.14 25.0 +/- 1.14 0.070 / 0.200 G15 154.2 26.9 15.2 +/- 1.27 28.5 +/- 1.27 0.090 / 0.320 G20 227.4 19.1 13.0 +/- 1.82 29.2 +/- 1.82 0.070 / 0.320 G21 286.0 27.7 7.7 +/- 1.59 14.1 +/- 1.59 0.110 / 0.230 G25 217.6 37.0 10.2 +/- 2.74 15.6 +/- 2.74 0.110 / 0.220 G26 314.6 14.4 6.6 +/- 1.80 16.8 +/- 1.80 0.060 / 0.090 G29 340.1 72.0 10.4 +/- 0.68 10.9 +/- 0.68 0.060 / 0.100