10252 Heidigraf
It was discovered during the Palomar–Leiden Trojan survey on 26 March 1971 , by Ingrid and Cornelis van Houten at Leiden , and Tom Gehrels at Palomar Observatory in California , United States . 
<triplet> Ingrid <subj> Cornelis van Houten <obj> spouse <triplet> Cornelis van Houten <subj> Ingrid <obj> spouse