Content-type: text/html Manpage of uvsplit

uvsplit

Section: User Commands (1)
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NAME

uvsplit - Break a uv data-set into single source, single-band files.  

PERSON RESPONSIBLE

rjs  

CATEGORIES

uv analysis  

DESCRIPTION

UVSPLIT breaks an input data-set into a number of output data-sets, each of which contains a single ``type'' of data. Generally this means single source and single frequency band, though this is controlled by some options.

UVSPLIT chooses its own names for the output data-sets. These are in the form

    sourcename.frequency
Where ``frequency'' is the center frequency of the band, in MHz, rounded to the nearest MHz.  

PARAMETERS

vis
The name if an input uv data-set. No default.
select
The normal uv selection commands. The default is copy everything.
options
This gives extra processing options. Several options can be given, each separated by commas. They may be abbreivated to the minimum needed to avoid ambiguity.
  nocopy    By default, uvsplit copies any calibration tables
            present in the input to the output. The nocopy
            option suppresses this.
  mosaic    Typically this option is used when splitting datasets
            observed in mosaic mode. UVSPLIT attempts to place all
            pointing centres of the source of interest into the one
            output dataset. This requires that the field names of
            the different pointings be composed of two parts,
            separated by an underscore, viz
                  a_b
            Where "a" is common to all field names (typically
            a source) and "b" is a field-specific name (typically
            a field number). For example field 123 of a mosaic
            experiment of the LMC might be called "lmc_123"
  clobber   If a dataset exists with the same name as one that
            uvsplit would create, then delete that dataset before
            creating uvsplit's output.
  calcode   If splitting by source, take calcode into account
The following three options determine which data-set characteristics result in UVSPLIT generating different output data-sets.
  nosource  Do not produce new data-sets based on source name. That
            is each output data-set can contain multiple sources.
            The default is for each output to contain only a single
            source.
  nofreq    Do not produce new output data-sets based on a switch
            in frequency. That is each output data-set can contain
            frequency switches.
  nowindow  Do not generate a separate output data-set for each
            spectral window. The default is to create a new
            output for each spectral window.
maxwidth
The maximum bandwidth (in GHz) for each output frequency band. Default is no subdivision of input bands. The maxwidth limit is only applied when splitting by frequency.


 

Index

NAME
PERSON RESPONSIBLE
CATEGORIES
DESCRIPTION
PARAMETERS

This document was created by man2html, using the manual pages.
Time: 18:35:39 GMT, July 05, 2011