<Table> <Tr> <Th colspan="13"> Attributes of largest asteroids </Th> </Tr> <Tr> <Th> Name </Th> <Th> Orbital radius ( AU ) </Th> <Th> Orbital period ( years ) </Th> <Th> Inclination to ecliptic </Th> <Th> Orbital eccentricity </Th> <Th> Diameter ( km ) </Th> <Th> Diameter ( % of Moon ) </Th> <Th> Mass ( × 10 kg ) </Th> <Th> Mass ( % of Ceres ) </Th> <Th> Density ( g / cm ) </Th> <Th> Rotation period ( hr ) </Th> <Th> Axial tilt </Th> <Th> Surface temperature </Th> </Tr> <Tr> <Th> Vesta </Th> <Td> 2.36 </Td> <Td> 3.63 </Td> <Td> 7.1 ° </Td> <Td> 0.089 </Td> <Td> 573 × 557 × 446 ( mean 525 ) </Td> <Td> 15 % </Td> <Td> 260 </Td> <Td> 28 % </Td> <Td> 3.44 ± 0.12 </Td> <Td> 5.34 </Td> <Td> 29 ° </Td> <Td> 85 -- 270 K </Td> </Tr> <Tr> <Th> Ceres </Th> <Td> 2.77 </Td> <Td> 4.60 </Td> <Td> 10.6 ° </Td> <Td> 0.079 </Td> <Td> 975 × 975 × 909 ( mean 953 ) </Td> <Td> 28 % </Td> <Td> 940 </Td> <Td> 100 % </Td> <Td> 2.12 ± 0.04 </Td> <Td> 9.07 </Td> <Td> ≈ 3 ° </Td> <Td> 167 K </Td> </Tr> <Tr> <Th> Pallas </Th> <Td> 2.77 </Td> <Td> 4.62 </Td> <Td> 34.8 ° </Td> <Td> 0.231 </Td> <Td> 580 × 555 × 500 ( mean 545 ) </Td> <Td> 16 % </Td> <Td> 210 </Td> <Td> 22 % </Td> <Td> 2.71 ± 0.11 </Td> <Td> 7.81 </Td> <Td> ≈ 80 ° </Td> <Td> 164 K </Td> </Tr> <Tr> <Th> Hygiea </Th> <Td> 3.14 </Td> <Td> 5.56 </Td> <Td> 3.8 ° </Td> <Td> 0.117 </Td> <Td> 530 × 407 × 370 ( mean 435 ) </Td> <Td> 12 % </Td> <Td> 87 </Td> <Td> 9 % </Td> <Td> 2.76 ± 1.2 </Td> <Td> 27.6 </Td> <Td> ≈ 60 ° </Td> <Td> 164 K </Td> </Tr> </Table>
what is the name of the largest asteroid it is approximately 1000 km in diameter
Ceres