casa6

<casaxml xsi:schemaLocation="http://casa.nrao.edu/schema/casa.xsd       file:///opt/casa/code/xmlcasa/xml/casa.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://casa.nrao.edu/schema/psetTypes.html">

​

<task category="calibration" name="getcalmodvla" type="function">

    <shortdescription>Retrieve calibrator brightness distributions from a VLA web service.</shortdescription>

        <description>

This application retrieves calibrator information via a VLA web service

and writes this information as a componentlist so that it may be used by applications

downstream.

        </description>

        <input>

            <param name="outfile" type="path">

                <shortdescription>The name of the output component list to be written. Must be specified</shortdescription>

                <description>The name of the output component list to be written. Must be specified

                     Default: none, must be specified

                        Example: outfile="3c273.cl"

                </description>

                <value/>

            </param>

            <param name="overwrite" type="bool">

                <shortdescription>Overwrite a file or directory of the same name as outfile if it exists.</shortdescription>

                <description>Overwrite a file or directory of the same name of outfile if it exists. If overwrite=False and a file or directory of the same name as outfile exists, an exception will be thrown.</description>

                <value>False</value>

            </param>

            <param name="source" type="string">

                <shortdescription>The calibrator name.</shortdescription>

                <description>

                    The calibrator name. The case-insensitive names

                    "3C48", "3C286", "3C138",

                    and "3C147" are supported. Exactly one of source

                    or direction must be specified. 

                </description>

                <value type="string"/>

            </param>

            <param name="direction" type="string">

                <shortdescription>The direction of the calibrator</shortdescription>

                <description>An alternative to source. It is the direction of the calibrator. The supported

                    formats are of the form "EPOCH LONGITUDE LATITUDE", eg

                    "J2000 12:34:56 -12.34.56".

                    "J2000 19h53m50 40d06m00"

                    "B1950 292.5deg -40.0deg"

                    "ICRS 13:05:27.2780 -049.28.04.458"

                    "GALACTIC 47.5rad -60.22rad"

​

                    Only astronomical coordinate systems should be used; eg AZEL is right out. The web service

                    will attempt to locate a known calibrator near this direction, where "near" is defined by

                    the web service team. Exactly one of source or direction must be specified.

                </description>

                <value type="string"/>

            </param>

            <param name="band" type="string">

                <shortdescription>The receiver band for which the source structure is needed</shortdescription>

                <description>A string representing the case-insensitive code of

                    the band for which the data are required. For the VLA,

                    supported codes are "P", "L", "S", "C", "X", "U", "K", "A", and "Q".

                </description>

                <value type="string"/>

            </param>

            <param name="obsdate" type="any">

                <any type="variant" limittype="string double int"/>

                <shortdescription>The observation date</shortdescription>

                <description>

                    The date for which to obtain the calibrator information. If numeric,