The asteroids whose perihelion distances (q) are smaller than 0.983 AU and aphelion distances (% MathType!MTEF!2!1!+-% feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn% hiov2DGi1BTfMBaeXafv3ySLgzGmvETj2BSbqefm0B1jxALjhiov2D% aebbfv3ySLgzGueE0jxyaibaiGc9yrFr0xXdbba91rFfpec8Eeeu0x% Xdbba9frFj0-OqFfea0dXdd9vqaq-JfrVkFHe9pgea0dXdar-Jb9hs% 0dXdbPYxe9vr0-vr0-vqpWqaaeaabiGaciaacaqabeaadaqaaqGaaO% qaaiqadgfagaqeaaaa!3D1C!\[\bar Q\]) are larger than 1.017 AU are called Apollo type objects. Similarly Amor type objects are defined by the conditions: 0.987 AU < %="" mathtype!mtef!2!1!+-%="" feaafeart1ev1aaatcvaufebsjuyzl2yd9gzlbvynv2caerbulwbln%="" hiov2dgi1btfmbaexafv3yslgzgmvetj2bsbqefm0b1jxaljhiov2d%="" aebbfv3yslgzguee0jxyaibaigc9yrfr0xxdbba91rffpec8eeeu0x%="" xdbba9frfj0-oqffea0dxdd9vqaq-jfrvkfhe9pgea0dxdar-jb9hs%="" 0dxdbpyxe9vr0-vr0-vqpwqaaeaabigaciaacaqabeaadaqaaqgaao%="" qaaiqadghagaqeaaaa!3d3c!\[\bar="" q\]="">< 1.382="" au="" and="" %="" mathtype!mtef!2!1!+-%="" feaafeart1ev1aaatcvaufebsjuyzl2yd9gzlbvynv2caerbulwbln%="" hiov2dgi1btfmbaexafv3yslgzgmvetj2bsbqefm0b1jxaljhiov2d%="" aebbfv3yslgzguee0jxyaibaigc9yrfr0xxdbba91rffpec8eeeu0x%="" xdbba9frfj0-oqffea0dxdd9vqaq-jfrvkfhe9pgea0dxdar-jb9hs%="" 0dxdbpyxe9vr0-vr0-vqpwqaaeaabigaciaacaqabeaadaqaaqgaao%="" qaaiqadgfagaqeaaaa!3d1c!\[\bar="" q\]=""> 1.666 AU. Both types are peculiar asteroids and have common dynamical behaviors. So, we regard these two type asteroids as one group and try to search for families among them.
Key words Asteroids - Apollo-Amor - families of asteroids