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 13.7 +/- 1.06 15.2 +/- 1.06 0.140 / 0.340 G06 52.0 72.6 10.8 +/- 0.59 11.2 +/- 0.59 0.130 / 0.430 G12 318.5 36.7 11.8 +/- 1.94 18.1 +/- 1.94 0.070 / 0.060 G17 58.9 31.2 10.3 +/- 2.26 17.7 +/- 2.26 0.050 / 0.050 G19 43.5 46.3 10.8 +/- 0.93 14.4 +/- 0.93 0.130 / 0.120 G24 260.8 40.6 14.3 +/- 3.73 20.7 +/- 3.73 0.070 / 0.080 G28 123.2 16.0 11.2 +/- 1.62 27.3 +/- 1.62 0.050 / 0.080