MPEC 2013-O31 : OBSERVATIONS AND ORBITS OF COMETS
MPEC 2012-X53 : OBSERVATIONS AND ORBITS OF COMETS
MPEC 2012-T08 : OBSERVATIONS AND ORBITS OF COMETS
MPEC 2012-T07 : P/1996 A1 = 2012 R2 (Jedicke)
MPEC 2012-S63 : COMET C/2012 S1 (ISON)
MPEC 2012-R04 : P/2006 U5 = 2012 P1 (Christensen)
MPEC 2012-Q70 : OBSERVATIONS AND ORBITS OF COMETS