PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/06/10-20:12:30 G02 219.2 63.3 14.0 +/- 0.83 15.5 +/- 0.83 0.140 / 0.100 G06 52.0 72.6 12.0 +/- 0.70 12.5 +/- 0.70 0.140 / 0.080 G12 318.5 36.7 10.0 +/- 0.46 15.4 +/- 0.46 0.070 / 0.260 G17 58.9 31.2 10.1 +/- 1.29 17.3 +/- 1.29 0.080 / 0.260 G19 43.5 46.3 10.4 +/- 0.95 13.7 +/- 0.95 0.050 / 0.050 G24 260.8 40.6 13.9 +/- 1.31 20.0 +/- 1.31 0.040 / 0.050 G28 123.2 16.0 11.3 +/- 2.29 27.5 +/- 2.29 0.040 / 0.080