Although You can type in source coordinates as You go, it is usually much easier and safer to use a source catalog. ... Note that coordinate type, velocity, velocity frame and velocity type are required parameters for all sources in a catalog. If they are the same for all objects, You can set them up in the beginning of Your source catalog with a DEFAULT line ( only for CIMA version 2.3 or later ). ... You can add a ' # ' followed by an optional comment after the last parameter. ... velocity . ...