Recomputing Velocity Information

Although atlod or fits is the best place to set the velocity information, this can also be handled by the task uvredo. This task recomputes a number of the `derived' quantities (such as observatory radial velocity) which are stored in a visibility dataset. You have to select uvredo's velocity option, and set the keyword velocity to indicate the rest frame to be used. Typical inputs are:

vis=line.uv Input dataset name
out=line2.uv Output dataset name
options=velocity Recompute velocity information
velocity=lsr Use the LSR as the rest frame

Miriad manager