Its bulk density and mass are not known , but assuming that its mean density is like that of LOCATION@1 -LRB- around NUMBER@1 g/cm ³ -RRB- , its mass can be estimated at roughly NUMBER@2 kg .

Its bulk density and mass are not known but assuming that it mean density is like that of LOCATION@1 -LRB- ~ NUMBER@1 g/cm ³ -RRB- its mass can be estimated at ~ NUMBER@2 × NUMBER@3 kg .
