MPEC 2011-Y66 : OBSERVATIONS AND ORBITS OF COMETS
MPEC 2011-N13 : OBSERVATIONS AND ORBITS OF COMETS
MPEC 2011-F02 : OBSERVATIONS AND ORBITS OF COMETS
MPEC 2011-C79 : COMET C/2011 C1 (MCNAUGHT)
MPEC 2011-A08 : OBSERVATIONS AND ORBITS OF COMETS