exportfits – Convert a CASA image to a FITS file – import/export task

Description

CASA-produced images can be exported as FITS files for transporting to other software packages or publication. No subimaging of the fits image can be made with this task. The spectral reference frame can be changed prior to export using the task imreframe.

Parameters

Title
Parameter	Default	Description
imagename	`''`
fitsimage	`''`
velocity	`False`
optical	`False`
bitpix	`int(-32)`
minpix	`int(0)`
maxpix	`int(-1)`
overwrite	`False`
dropstokes	`False`
stokeslast	`True`
history	`True`
dropdeg	`False`

Parameter Explanations

imagename

''

Name of input CASA image

fitsimage

''

Name of output image FITS file

velocity

False

Use velocity (rather than frequency) as spectral axis

optical

False

Use the optical (rather than radio) velocity convention

bitpix

int(-32)

Bits per pixel

minpix

int(0)

Minimum pixel value (if minpix > maxpix, value is automatically determined)

maxpix

int(-1)

Maximum pixel value (if minpix > maxpix, value is automatically determined)

overwrite

False

Overwrite pre-existing imagename

dropstokes

False

Drop the Stokes axis?

stokeslast

True

Put Stokes axis last in header?

history

True

Write history to the FITS image?

dropdeg

False

Drop all degenerate axes (e.g. Stokes and/or Frequency)?