Observational and Dynamical Characterization of Main-belt Comet P/2010 R2 (La Sagra) Posted on June 26, 2014 by UHNAI Webmaster in Hsieh, H. H., and 38 colleagues (). Observational and Dynamical Characterization of Main-belt Comet P/2010 R2 (La Sagra). , 143,