stackfactory API Reference

Make stacks from a set of chip images.

class skyoffset.stackfactory.ChipStacker(stackdb, workdir, swarp_configs=None)

General-purpose class for stacking single-extension FITS, adding a sky offset to achieve uniform sky bias.

Parameters:

stackdb : skyoffset.imagedb.MosaicDB instance

The MosaicDB instance to store stack documents in.

workdir : str

Directory to make stacks in. This directory will be created if necessary.

swarp_configs : dict

A dictionary of configurations to pass to moastro.astromatic.Swarp.

pipeline(stack_name, image_keys, image_paths, weight_paths, noise_paths=None, db_meta=None)

Pipeline for running the ChipStacker method to produce stacks and addd them to the stack DB.

Parameters:

stack_name : str

Name of the stack being produced (for filenames and MongoDB document ``_id``s.

image_keys : list

List of image identifier strings (can be image keys from your moastro.imagelog.ImageLog.

image_paths : list

List of paths (strings) to images being stacked.

weight_paths : list

List of paths (strings) to weight maps, corresponding to image_paths.

noise_paths : list

List of paths (strings) to noise maps, corresponding to iamge_paths.

dbmeta : dict

Arbitrary metadata to store in the stack’s StackDB document.