PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/29-01:42:50 G02 63.8 29.0 10.0 +/- 0.61 17.8 +/- 0.61 0.070 / 0.130 G05 51.9 55.5 11.7 +/- 0.38 13.9 +/- 0.38 0.040 / 0.120 G12 183.2 26.8 15.5 +/- 1.73 29.1 +/- 1.73 0.170 / 0.280 G13 124.4 18.5 13.9 +/- 1.18 31.7 +/- 1.18 0.120 / 0.280 G15 161.4 15.8 17.3 +/- 1.50 42.2 +/- 1.50 0.030 / 0.050 G20 220.9 13.4 19.9 +/- 3.97 51.5 +/- 3.97 0.030 / 0.050 G21 275.0 19.8 14.8 +/- 1.35 32.7 +/- 1.35 0.050 / 0.130 G25 231.0 48.4 15.6 +/- 1.18 20.0 +/- 1.18 0.060 / 0.130 G29 330.7 58.4 13.1 +/- 0.49 15.0 +/- 0.49 0.090 / 0.470