PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/08-19:27:50 G02 204.5 38.3 15.5 +/- 0.89 23.2 +/- 0.89 0.060 / 0.160 G06 154.9 72.2 15.2 +/- 0.56 15.9 +/- 0.56 0.060 / 0.120 G12 308.4 16.2 12.7 +/- 3.93 30.7 +/- 3.93 0.100 / 0.090 G17 38.3 47.3 12.4 +/- 1.27 16.2 +/- 1.27 0.070 / 0.100 G19 10.4 62.5 13.1 +/- 0.57 14.6 +/- 0.57 0.070 / 0.120 G24 293.2 39.7 14.8 +/- 7.23 21.6 +/- 7.23 0.070 / 0.080 G28 103.4 33.3 12.7 +/- 0.77 20.8 +/- 0.77 0.340 / 0.290