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spacetelescope

73 indexed repositories · View on GitHub

jwst
processing pipeline for James Webb Space Telescope imagery and spectroscopy

Python · 658 stars
poppy
Physical Optics Propagation in Python

Jupyter Notebook · 277 stars
jdaviz
Interactive data visualization and analysis tools for astronomical observations

Python · 177 stars
jdat_notebooks
JWST Data Analysis Tools Notebooks

Jupyter Notebook · 133 stars
spherical_geometry
A Python package for handling spherical polygons that represent arbitrary regions of the sky

Shell · 75 stars
jwql
The James Webb Space Telescope Quicklook Application

Python · 68 stars
jwebbinar_prep

Jupyter Notebook · 62 stars
drizzle
A package for combining dithered images into a single image

C · 59 stars
drizzlepac
AstroDrizzle for HST images.

Python · 59 stars
gwcs
Generalized World Coordinate System: provides tools for managing WCS in a general way

Python · 56 stars
romancal
Python library to process science observations from the Nancy Grace Roman Space Telescope

Python · 50 stars
mirage
This code can be used to generate simulated NIRCam, NIRISS, or FGS data

Python · 46 stars
jwst-pipeline-notebooks
JWST Calibration Pipeline Notebooks

Jupyter Notebook · 43 stars
synphot_refactor
Synthetic photometry using Astropy

Python · 41 stars
astrocut
Tools for making image cutouts from sets of TESS full frame images

Python · 32 stars
stenv

Python · 31 stars
romanisim
Nancy Grace Roman Space Telescope WFI Data Simulator

Python · 29 stars
mast_notebooks
A curated collection of Jupyter Notebooks, brought to you by the team at MAST.

Jupyter Notebook · 28 stars
hst_notebooks
Generated Notebooks HTML

Jupyter Notebook · 28 stars
roman_notebooks
Roman Notebook Repository

Jupyter Notebook · 22 stars
53 more repositories live on View on GitHub

Beginner friendly Everything

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Split wfss_contam step in half Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

spacetelescope/jwst#10878 · Opened Sep 18, 2026
Incorrect units in ee_radii description Open

Difficulty 1/5 Under an hour Newbie friendliness 88/100

spacetelescope/rad#918 · Opened Sep 18, 2026
allow_extra_columns is always False if the data table is empty Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

spacetelescope/stdatamodels#830 · Opened Sep 18, 2026
Cache ProjectionRegion and cell polygons across find_skycell_matches calls Open

spacetelescope/romancal#2452 · 2 comments · 1 assignee · Opened Sep 17, 2026
Drizzlepac/HAP: Implement runastrodriz logging ideas Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

spacetelescope/drizzlepac#2190 · Opened Sep 17, 2026
Integrate MIRI ACQ monitor with JWQL Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

spacetelescope/jwql#1799 · Opened Sep 17, 2026
UTCTimestamp mishandles UTC offsets: negative rejected, positive silently misinterpreted Open

Difficulty 3/5 1-2 days Newbie friendliness 78/100

spacetelescope/vo-models#44 · Opened Sep 17, 2026
define schema for BAM reference file Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

spacetelescope/rad#917 · Opened Sep 17, 2026
Record siaf, bam reference, and bam quaternion in L1 meta Open

Difficulty 3/5 1-2 days Newbie friendliness 62/100

spacetelescope/romancal#2449 · Opened Sep 17, 2026
Test issue please ignore Open

axe-scanning-issue

Difficulty 1/5 Under an hour Newbie friendliness 1/100

spacetelescope/notebook-ci-testing#640 · Opened Sep 17, 2026
bug: Skycell matcher inner k-d tree mixes radians and degrees Open

spacetelescope/romancal#2448 · 5 comments · 1 assignee · Opened Sep 17, 2026
API: Expose Asn_MIRLRSTAConfirm in __all__ Open

associations

spacetelescope/jwst#10873 · 1 assignee · Opened Sep 17, 2026
NIRCam grism WCS doesn't round-trip outside wavelength domain Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

spacetelescope/jwst#10872 · Opened Sep 16, 2026
Astropy warning for NULL flag Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

spacetelescope/stdatamodels#826 · 2 comments · Opened Sep 16, 2026
DQ Flags Docs Need Updating Open

Difficulty 2/5 1-3 hours Newbie friendliness 50/100

spacetelescope/roman_datamodels#709 · Opened Sep 16, 2026
WFSS regression tests have no sources with nontrivial contamination Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

spacetelescope/jwst#10870 · Opened Sep 16, 2026
Move common Ensure_array to cube_utils Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

spacetelescope/jwst#10869 · Opened Sep 15, 2026
rename regression test data files to easily update Artifactory data without modifying jwst code Open

regression_testing

Difficulty 3/5 1-2 days Newbie friendliness 55/100

spacetelescope/jwst#10868 · 2 comments · Opened Sep 15, 2026
Apply clang-format and enable pre-commit check for HSTCAL Open

ACS clean-up STIS WFC3

Difficulty 4/5 3-5 days Newbie friendliness 55/100

spacetelescope/hstcal#738 · Opened Sep 15, 2026
stfitsdiff senstive to order of "section comments" (empty key different valued keycards) Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

spacetelescope/jwst#10866 · 2 comments · Opened Sep 14, 2026
stfitsdiff insenstive to HDU order Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

spacetelescope/jwst#10865 · 2 comments · Opened Sep 14, 2026
Timeout in setup_sim_to_match_file() Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

spacetelescope/stpsf#169 · Opened Sep 14, 2026
Remove use of outdated pipeline designators Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

spacetelescope/jwst#10862 · Opened Sep 14, 2026
Small fixes/tweaks to likely_fit's jump detection Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

spacetelescope/jwst#10861 · Opened Sep 12, 2026
Watchdog service: support image/file uploads to Slack and a dry-run mode Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

spacetelescope/catkit2#463 · Opened Sep 11, 2026
Disperse pixel corners instead of pixel centers in wfss_contam Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

spacetelescope/jwst#10856 · Opened Sep 10, 2026
Address some DHS processing/repro issues seen by OPS Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

spacetelescope/jwst#10854 · 1 comment · Opened Sep 10, 2026
Consider a DQ plane for the zeroframe Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

spacetelescope/jwst#10853 · Opened Sep 9, 2026
Zeroframe is not dark corrected Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

spacetelescope/jwst#10852 · Opened Sep 9, 2026
JSOCINT-834: Remove unused NRC_FLAT exposure type Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

spacetelescope/jwst#10850 · Opened Sep 9, 2026
[BUILD DELIVERY REQUEST] `26Q3_B22.3` Open

spacetelescope/romancal#2436 · 6 comments · 2 assignees · Opened Sep 8, 2026
Bug in jwst_tvt introduces 1-day shift in fixed target and moving target ephemeris Open

Difficulty 1/5 Under an hour Newbie friendliness 92/100

spacetelescope/jwst_gtvt#114 · Opened Sep 8, 2026
IFU Cube build writes incorrect FITS card TDIM2 Open

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

spacetelescope/jwst#10845 · 3 comments · Opened Sep 8, 2026
Normalize WFSSCubeModel contamination models to direct-image flux Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

spacetelescope/jwst#10842 · Opened Sep 3, 2026
SOSS User Provided Background Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

spacetelescope/jwst#10840 · 1 comment · Opened Sep 3, 2026
CI pytest runs show several warnings about upcoming changes for code used here Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

spacetelescope/tweakwcs#263 · Opened Sep 2, 2026
setuptools warnings during build Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

spacetelescope/spherical_geometry#346 · Opened Sep 2, 2026
devdeps running with 3.12 when 3.14 is expected Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

spacetelescope/spherical_geometry#345 · Opened Sep 2, 2026
Update UnsupportedConverterError tests when minimum asdf is 6.0.0 Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

spacetelescope/stdatamodels#815 · Opened Sep 1, 2026
Add read noise weighting as an option in Cube Build drizzling Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

spacetelescope/jwst#10834 · Opened Sep 1, 2026
Display Uncal and Cal Datasets in MIRI LRS Shiny Application Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

spacetelescope/jwql#1793 · Opened Sep 1, 2026
Error returning reference file datamodels from custom JWST Steps Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

spacetelescope/jwst#10832 · 2 comments · Opened Aug 31, 2026
Provide a pixel dispersion table as an output product for WFSS Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

spacetelescope/jwst#10828 · Opened Aug 28, 2026
CALACS: abs should be fabs in acsccd but it changes results Open

ACS bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

spacetelescope/hstcal#727 · Opened Aug 28, 2026
Deprecate get_hdu Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

spacetelescope/stdatamodels#811 · Opened Aug 28, 2026
Deprecate is_builtin_fits_keyword Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

spacetelescope/stdatamodels#810 · Opened Aug 28, 2026
Containerize JWQL app Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

spacetelescope/jwql#1789 · 1 comment · Opened Aug 27, 2026
gain affects total flux calculations in inject_sources_into_l2 Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

spacetelescope/romanisim#378 · 2 comments · Opened Aug 27, 2026
Ensure subarray names placed into product/file names do not contain underscores or dashes Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

spacetelescope/jwst#10827 · Opened Aug 27, 2026
Docs describe HDU orders that don't match files Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

spacetelescope/jwst#10825 · 2 comments · Opened Aug 27, 2026

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