When discovered in January 2010, P/2010 A2 (LINEAR) was initially given a cometary designation and considered a member of this group, but P/2010 A2 is now thought to be the remnant of an asteroid-on-asteroid impact.
在2010年1月，發現P/2010 A2 (LINEAR)時，最初給予了彗星的型號，並考慮是這個群組的成員，但是現在相信P/2010 A2是小行星與小行星對撞後剩下的殘骸。