I never met Rob but I did do a lot of follow up confirmations of his many NEO discoveries posted on the Minor Planet Center NEOCP page
http://www.minorplanetcenter.net/iau...m_tabular.html between 2010 and 2013. Often I was the first one to confirm a new posting. Not sure how many asteroids he discovered but they are in the hundreds. For some reason people only mention him for comets which he found while looking for NEO's for the NASA survey project.
Andras