PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2018/06/11-15:58:00 G01 125.5 13.0 10.2 +/- 3.28 26.6 +/- 3.28 0.040 / 0.080 G07 58.1 69.4 10.5 +/- 0.53 11.1 +/- 0.53 0.030 / 0.040 G08 49.6 39.0 7.9 +/- 0.76 11.7 +/- 0.76 0.020 / 0.030 G09 177.5 33.4 11.8 +/- 2.35 19.2 +/- 2.35 0.030 / 0.030 G11 116.5 36.3 11.9 +/- 0.83 18.5 +/- 0.83 0.060 / 0.120 G13 320.6 13.3 10.3 +/- 1.77 26.6 +/- 1.77 0.050 / 0.120 G17 200.8 15.3 10.8 +/- 2.26 26.8 +/- 2.26 0.040 / 0.060 G18 102.0 17.6 11.0 +/- 1.90 25.6 +/- 1.90 0.030 / 0.060 G28 279.6 54.0 12.5 +/- 0.97 15.0 +/- 0.97 0.170 / 0.260 G30 335.6 62.3 10.0 +/- 0.53 11.1 +/- 0.53 0.160 / 0.220