PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/11/12-09:42:50 G02 221.5 66.9 12.7 +/- 0.75 13.7 +/- 0.75 0.040 / 0.060 G06 47.8 68.8 8.0 +/- 0.44 8.5 +/- 0.44 0.030 / 0.060 G12 320.6 44.3 4.4 +/- 0.69 6.1 +/- 0.69 0.060 / 0.100 G17 61.2 28.9 6.8 +/- 0.74 12.1 +/- 0.74 0.050 / 0.130 G19 46.8 43.9 7.7 +/- 0.92 10.5 +/- 0.92 0.110 / 0.200 G24 260.1 39.6 13.4 +/- 3.16 19.6 +/- 3.16 0.110 / 0.250 G28 123.9 17.1 11.9 +/- 1.10 28.0 +/- 1.10 0.050 / 0.040