casa5

<?xml version="1.0" encoding="UTF-8"?>

<?xml-stylesheet type="text/xsl" ?>

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<casaxml xmlns="http://casa.nrao.edu/schema/psetTypes.html"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://casa.nrao.edu/schema/casa.xsd

file:///opt/casa/code/xmlcasa/xml/casa.xsd">

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<!-- Documentation here.                                                -->

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<task type="function" name="fixplanets" category="editing, maninpulation, calibration" >

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<shortdescription>Changes FIELD and SOURCE table entries based on user-provided direction or POINTING table, optionally fixes the UVW coordinates</shortdescription>

<description>

    This task's main purpose is to correct observations which were performed

    with correct pointing and correlation but for which incorrect direction

    information was entered in the FIELD and SOURCE table of the MS.

    If you actually want to change the phase center of the visibilties in an MS,

    you should use task fixvis.

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    Input Parameters

    vis        -- Name of the input visibility set

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    field      -- field selection string

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    fixuvw     -- recalc uvw coordinates? (default: False)

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    direction  -- if set, don't use pointing table but set direction to this value.

                  The direction can either be given explicitly or as the path

                  to a JPL Horizons ephemeris (for an example of the format,

                  see directory data/ephemerides/JPL-Horizons/).

                  Alternatively, the ephemeris table can also be provided as mime format file,

                  i.e. a saved email as obtained via the commands (for example):

                  import recipes.ephemerides.request as jplreq

                  jplreq.request_from_JPL(objnam='Mars',startdate='2012-01-01',enddate='2013-12-31',

                       date_incr='0.1 d', get_axis_orientation=False, get_axis_ang_orientation=True,

                       get_sub_long=True, use_apparent=False, get_sep=False,

                       return_address='YOUR_EMAIL_ADDESS', mailserver='YOUR_MAIL_SERVER_ADDRESS')

                  Note: some mail clients may not save the JPL mail properly.

                        Confirmed to work is Thunderbird.

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                  default= '' (use pointing table)

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                  example: 'J2000 19h30m00 -40d00m00'

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    refant     -- if using pointing table information, use it from this antenna

                  default: 0 (antenna id 0)

                  examples: 'DV06' (antenna with name DV06)

                            3 (antenna id 3)

    reftime    -- if using pointing table information, use it from this timestamp

                  default: 'first'

                  examples: 'median' will use the median timestamp for the given field

                    using only the unflagged maintable rows

                            '2012/07/11/08:41:32' will use the given timestamp (must be

                            within the observaton time)

</description>

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<input>

    <param type="string" name="vis" kind="ms" mustexist="true">

        <description>Name of the input visibility set.</description>

        <value></value>

        <example>vis='ngc5921.ms'</example>

    </param>