importfits

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0.1.49 importfits

Requires:

Synopsis
Convert an image FITS file into a CASA image

Description

Convert an image FITS file into a CASA image

Keyword arguments: fitsimage – Name of input image FITS file default: none; example=’3C273XC1.fits’ imagename – Name of output CASA image default: none; example: imagename=’3C273XC1.image’ whichrep – If fits image has multiple coordinate reps, choose one. default: 0 means first; example: whichrep=1 whichhdu – If fits file contains multiple images, choose this one (0 == first) default=-1 use the first valid one; example: whichhdu=1 zeroblanks – Set blanked pixels to zero (not NaN) default=True; example: zeroblanks=True overwrite – Overwrite pre-existing imagename default=False; example: overwrite=True defaultaxes – Add the default 4D coordinate axes where they are missing; value True requires setting defaultaxesvalues default=False, example: defaultaxes=True defaultaxesvalues – List of values to assign to added degenerate axes when defaultaxes==True (ra,dec,freq,stokes) For existing axes, empty strings can be given as values. For the directions and spectral values, any valid angle/frequency expressions can be given. default = [], example: defaultaxesvalues=[’19h30m00’, ’-02d30m00’, ’88.5GHz’, ’Q’] beam – List of values to be used to define the synthesized beam [BMAJ,BMIN,BPA] (as in the FITS keywords) default = [] (i.e.take from FITS file), example: beam=[’0.35arcsec’, ’0.24arcsec’, ’25deg’]

Arguments


Inputs
fitsimage	Name of input image FITS file
	allowed:	string
	Default:
imagename	Name of output CASA image
	allowed:	string
	Default:
whichrep	If fits image has multiple coordinate reps, choose one.
	allowed:	int
	Default:	0
whichhdu	If its file contains multiple images, choose one (0 = first HDU, -1 = first valid image).
	allowed:	int
	Default:	-1
zeroblanks	Set blanked pixels to zero (not NaN)
	allowed:	bool
	Default:	True
overwrite	Overwrite pre-existing imagename
	allowed:	bool
	Default:	False
defaultaxes	Add the default 4D coordinate axes where they are missing; value True requires setting defaultaxesvalues
	allowed:	bool
	Default:	False
defaultaxesvalues	List of values to assign to added degenerate axes when defaultaxes==True (ra,dec,freq,stokes)
	allowed:	variant
	Default:	[]
beam	List of values to be used to define the synthesized beam [BMAJ,BMIN,BPA] (as in the FITS keywords)
	allowed:	variant
	Default:	[]

Example

importfits(fitsimage=’ngc3256.fits’, imagename=’ngc3256.im’, overwrite=True)

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