MPEC 2019-T169 : OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS (*)
MPEC 2019-R111 : 2019 RT3 (*)
MPEC 2019-J142: OBSERVATIONS AND ORBITS OF COMETS (*)
MPEC 2019-H29 : COMET C/2019 F2 (ATLAS) (*)