Density confusion? 

I just changed the density figures to be 5600 +/- 1300 as the previous numbers were 5.6 +/- 1.3 which would correspond to gm per cubic cm, but the info box gives the figure as kg per cubic metre.  If the planet has a surface gravity of nearly 3G then there's no way its real density is only 5.6 kilograms per cubic metre.