PRN Azimuth(d) Elevation(d) Vertical-TEC(tecu) Slant-TEC(tecu) S4(L1/L2) 2019/12/11-06:43:00 G02 202.9 39.2 8.5 +/- 0.66 12.6 +/- 0.66 0.080 / 0.150 G06 154.1 71.2 7.9 +/- 0.56 8.3 +/- 0.56 0.120 / 0.150 G12 308.6 18.8 3.2 +/- 1.74 7.3 +/- 1.74 0.050 / 0.040 G17 38.5 46.8 4.3 +/- 1.21 5.7 +/- 1.21 0.060 / 0.040 G19 10.3 62.9 4.6 +/- 0.38 5.1 +/- 0.38 0.050 / 0.100 G24 296.3 38.0 3.5 +/- 3.95 5.3 +/- 3.95 0.060 / 0.100 G28 99.8 37.5 8.1 +/- 0.78 12.3 +/- 0.78 0.050 / 0.090