Its bulk density and mass are not known , but assuming that its mean density is like that of Amalthea ( around 0.86 g\/cm ³ ) , its mass can be estimated at roughly 4.3 × 1017 kg .
Its bulk density and mass are not known but assuming that it mean density is like that of Amalthea ( ~ 0.86 g\/cm ³ ) its mass can be estimated at ~ 4.3 × 1017 kg .