Module: single_extension_fits#

class kbmod.standardizers.fits_standardizers.single_extension_fits.SingleExtensionFits(location=None, hdulist=None, config=None, **kwargs)[source]#

Suppports processing of a single, single-extension, FITS file.

The PRIMARY HDU contains the data and is the sole element of the exts. The WCS is extracted from the PRIMARY HDU as well.

Parameters:

locationstr: Location of the FITS file, can be an URI or local filesystem path.

Attributes:

hdulist~astropy.io.fits.HDUList: All HDUs found in the FITS file
primary~astropy.io.fits.PrimaryHDU: The primary HDU.
extslist: Any additional extensions marked by the standardizer for further processing, ~astropy.io.fits.CompImageHDU or ~astropy.io.fits.ImageHDU expected. Does not include the primary HDU if it doesn’t contain any image data. Contains at least 1 entry.
wcslist: A list of WCS’s or None for each entry marked as processable.
bboxlist: A list of bounding boxes or None for each entry marked as processable.

Methods

`canStandardize`(tgt)	Returns `True` when the standardizer knows how to process the given upload (file) type.
`close`([output_verify, verbose, closed])	Close the associated FITS file and memmap object, if any.
`get`(tgt[, force, config])	Get the standardizer class that can handle given file.
`resolveFromPath`(tgt)	Successfully resolves FITS files on a local file system, that are readable by AstroPy.
`resolveTarget`(tgt)	Returns `True` if the target is a FITS file on a local filesystem, that can be read by AstroPy FITS module, or an ~astropy.io.fits.HDUList.
`standardize`()	Invokes standardize metadata, image, variance, mask and PSF and returns the results as a dictionary.
`standardizeBBox`()	Calculate the standardized bounding box, the world coordinates at image corner and image center.
`standardizeMaskImage`()	Standardizes the mask data as an simple 0 (not masked) and 1 (masked) bitmap.
`standardizeMetadata`()	Standardizes required and optional metadata from the given data.
`standardizePSF`()	Returns PSF for each extension marked as processable.
`standardizeScienceImage`()	Standardizes the science image data.
`standardizeVarianceImage`()	Standardizes the variance data.
`standardizeWCS`()	Creates an WCS for every processable science image.
`toLayeredImage`()	Returns a list of ~kbmod.search.layered_image objects for each entry marked as processable.
`translateHeader`(args, *kwargs)	Maps the header keywords to the required and optional metadata.

configClass

configClass#: alias of FitsStandardizerConfig

classmethod resolveTarget(tgt)[source]#

Returns True if the target is a FITS file on a local filesystem, that can be read by AstroPy FITS module, or an ~astropy.io.fits.HDUList.

Parameters:

tgtstr: Path to FITS file.

Returns:

canStandardizebool: True if target is a FITS file readable by AstroPy. False otherwise.
resourcesdict, optional: An empty dictionary when canStandardize is False. A dict containing ~fits.HDUList when canStandardize is True.

Raises:

FileNotFoundError - when target is path to file that doesn’t exist
TypeError - when target is not HDUList or a filepath.