They include 298 Baptistina , 422 Berolina , 2093 Genichesk , 2259 Sofievka ( the biggest , with a 21 km diameter ) , 2952 Liliputia , 3533 Toyota , 3850 Peltier , 3875 Staehle , 4278 Harvey , 4396 Gressmann , and 4750 Mukai . They include 298 Baptistina , 422 Berolina , 2093 Genichesk , 2259 Sofievka ( the largest , with a 21 km diameter ) , 2952 Lilliputia , 3533 Toyota , 3850 Peltier , 3875 Staehle , 4278 Harvey , 4396 Gressmann , and 4750 Mukai .