NRAO Home > CASA > CASA Task Reference Manual

0.1.56 imreframe

Requires:

Synopsis
Change the frame in which the image reports its spectral values

Arguments





Inputs

imagename

Name of the input image

allowed:

string

Default:

output

Name of the output image; ” => modify input image

allowed:

string

Default:

outframe

Spectral frame in which the frequency or velocity values will be reported by default

allowed:

string

Default:

lsrk

epoch

Epoch to be associated with this image e.g ’2000/12/25/18:30:00.10’

allowed:

string

Default:

restfreq

restfrequency to use for velocity values (e.g ”1.420GHz” for the HI line)

allowed:

string

Default:

Returns
void

Example

 
 
            imagename -- name of casa image file to process on  
    output         -- name of output image  ’’ means modify the input image itself  
                 default: ’’;  
    outframe     -- new spectral frame in which the frequency or  
                                  velocity will be reported for.  
                 Options: ’lsrk’,’lsrd’,’bary’,’geo’,’topo’,’galacto’,  
                          ’lgroup’,’cmb’  
 default: ’lsrk’  
            >>>  
                 epoch    -- when outframe is ’topo’ or ’geo’ a time in UTC is needed  
                                 to decide when to do the frequency conversion. ’’ is to use  
                                 the epoch of the input image  
                       default= ’’  
 
            restfreq -- Specify rest frequency to use for output image  
               default=’’; ’’ means use the restfrequency already in input image  
               For example for  
               NH_3 (1,1) put restfreq=’23.694496GHz’  
 


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

Copyright 2016 Associated Universities Inc., Washington, D.C.

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


Home | Contact Us | Directories | Site Map | Help | Privacy Policy | Search