asdf_cut
- astrocut.asdf_cut(input_file: str, ra: float, dec: float, cutout_size: int = 20, output_file: str = 'example_roman_cutout.fits', write_file: bool = True, fill_value: Union[int, float] = nan) Cutout2D[source]
Takes a single ASDF input file (
input_file) and generates a cutout of designated sizecutout_sizearound the given coordinates (coordinates).Preliminary proof-of-concept functionality.
- Parameters
- input_filestr
The input ASDF file.
- rafloat
The right ascension of the central cutout.
- decfloat
The declination of the central cutout.
- cutout_sizeint
Optional, default 20. The image cutout pixel size.
- output_filestr
Optional, default “example_roman_cutout.fits”. The name of the output cutout file.
- write_filebool
Optional, default True. Flag to write the cutout to a file or not.
- fill_value: int | float
Optional, default
np.nan. The fill value for pixels outside the original image.
- Returns
- astropy.nddata.Cutout2D:
An image cutout object.