hsouch / helpfulsnippets

Small tools to make working with astronomical data a little bit easier.

HelpfulSnippets

Small tools to make working with astronomical data a little bit easier.

Simple Image Tester

Sometimes, running batch downloads of FITS files leads to some strange or corrupted files. Run this tool on a directory containing fits images (extension .fits or .fit) to see if any are corrupted.

python simple_image_tester.py top_level_dir

It will print out the filenames of any files that won't open, and will tell you how many need to be dealt with (if any).

FITS Compiler

Sometimes you want to compile a bunch of files in a directory into one big file for easier processing. This script does just that! Please note that the method requires all consistutent input FITS files to remain open until after saving the compiled file, until after when they are all closed. This might require high RAM usage for large files, but it runs very well on small to medium sized directories.

python FitsCompiler.py input_directory/ output_filename.fits

Coverage Getter

This script will obtain RA and DEC points of FITS images, running on a directory and finding all FITS files within nested subdirectories. For each file, it will obtain a WCS and image, and return RA and DEC points at the top left and bottom right corners of the image.

python coverage_getter.py top_level_dir -o output_filename.fits

It will save as an output table (the name can be customized by the user). Each row contains the filename, and 4 points to reconstruct a coverage map.

Cutout Viewer

This is a simple tool to generate a visualization of results from a set of cutouts. Will work seamlessly with the output of Cutout Creator. Users can specify the colormap to display images with (which must be MatPlotLib friendly), and the DPI to adjust output image quality.

python CutoutViewer.py input_filename.fits output_filename --cmap STRING --dpi INT

Command Line Args Template

This script serves as a template for getting some software running that needs to take in command line arguments from the user. It includes a few examples to get you on your way. To test that things are working, you can run the following:

python CLArgsTemplate.py and python CLArgsTemplate.py -h

TBriDGE Command Line Wrapper

This script tbridge_cl.py is designed to serve as a simple tool to get you going using TBriDGE through the command line. The user can easily configure this script moving forward to accomodate more unique projects.