PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/29-01:27:50 G02 58.5 33.4 10.5 +/- 0.67 17.2 +/- 0.67 0.060 / 0.090 G05 59.6 61.4 12.2 +/- 0.41 13.7 +/- 0.41 0.090 / 0.090 G12 184.5 33.8 14.8 +/- 0.96 24.0 +/- 0.96 0.160 / 0.380 G13 129.6 14.0 13.8 +/- 1.94 35.2 +/- 1.94 0.110 / 0.430 G15 165.0 10.6 1.6 +/- 34.39 4.3 +/- 34.39 0.030 / 0.070 G21 269.7 15.7 15.7 +/- 2.74 38.3 +/- 2.74 0.030 / 0.040 G25 240.4 53.1 13.5 +/- 1.51 16.5 +/- 1.51 0.050 / 0.110 G29 326.5 52.0 12.1 +/- 0.86 14.9 +/- 0.86 0.050 / 0.090