Minor planet object articles (numbered) - How Old Today?

1

(121514) 1999 UJ7

1

(308933) 2006 SQ372

1

(458732) 2011 MD5

1

(706765) 2010 TK7

1

(87269) 2000 OO67

6

(164207) 2004 GU9

6

(309239) 2007 RW10

6

S/2009 (136617) 2