PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/05/15-02:42:40 G02 65.0 27.9 6.5 +/- 0.68 11.8 +/- 0.68 0.050 / 0.140 G05 50.8 54.2 8.1 +/- 0.38 9.7 +/- 0.38 0.040 / 0.120 G12 183.4 26.0 11.3 +/- 1.10 21.7 +/- 1.10 0.030 / 0.050 G13 123.5 19.3 10.5 +/- 1.50 23.5 +/- 1.50 0.030 / 0.040 G15 160.4 17.0 11.7 +/- 3.23 27.6 +/- 3.23 0.060 / 0.080 G20 220.9 21.7 14.3 +/- 1.26 30.2 +/- 1.26 0.060 / 0.060 G21 276.1 20.7 8.5 +/- 1.20 18.4 +/- 1.20 0.080 / 0.130 G25 229.8 47.5 11.5 +/- 1.40 15.0 +/- 1.40 0.060 / 0.130 G29 331.7 59.8 10.3 +/- 0.84 11.7 +/- 0.84 0.120 / 0.350