National Radio
Astronomy Observatory

4.2.4 Loading JVLA data in CASA

JVLA data can be loaded into CASA either via importevla or by using the task importasdm. Both tasks will convert ASDM raw data files into measurement sets. importasdm will convert the data itself and the majority of the metadata. importevla will run importasdm followed by JVLA-specific corrections, like the application of the on-line flags (e.g. times when the subreflector was not in place or the an antenna was not on source), an option to clip values that are exactly zero (as of 2010, such values still may appear in the JVLA raw data), and flagging for shadowing.

More information about CASA may be found at the CASA web page

Copyright © 2010 Associated Universities Inc., Washington, D.C.

This code is available under the terms of the GNU General Public Lincense