astropy/specutils

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An Astropy coordinated package for astronomical spectroscopy. Maintainers: @rosteen @keflavich @eteq

Stars: 204
Forks: 135
Open beginner issues: 1
Indexed issues: 198
Avg merge: 12h 55m
Merged PRs (30d): 1

Dominant language: Python
License: No license data
Last GitHub push: Sep 8, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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198 open issues indexed

Inconsistent argument name for Doppler convention Open

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

astropy/specutils#1335 · 1 comment · Opened Jul 6, 2026
TST: Coverage upload is broken Open

bug testing

Difficulty 3/5 1-2 days Newbie friendliness 35/100

astropy/specutils#1333 · 1 comment · 1 reaction · Opened Jun 24, 2026
Feature request: redshift support for SpectrumCollection Open

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

astropy/specutils#1319 · 5 comments · Opened Feb 16, 2026
Cannot read IRAF MULTISPEC with a third dimension Open

io

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

astropy/specutils#1316 · 3 comments · Opened Feb 4, 2026
Equivalent width uses scalar line_flux/cont_flux, incorrect for non-constant continua Open

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

astropy/specutils#1302 · 3 comments · Opened Jan 13, 2026
TST: Remote data job has 5 failures with HTTP Error 503 Open

bug testing

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

astropy/specutils#1295 · 12 comments · Opened Dec 13, 2025
TST: Coverage badge is broken Open

bug testing

Difficulty 3/5 1-2 days Newbie friendliness 35/100

astropy/specutils#1289 · 1 comment · Opened Nov 26, 2025
TST: Add Python 3.14 to test matrix Open

testing

Difficulty 1/5 Under an hour Newbie friendliness 58/100

astropy/specutils#1288 · Opened Nov 26, 2025
make sure specutils can read SPHEREx data Open

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

astropy/specutils#1272 · 2 comments · Opened Sep 24, 2025
make sure specutils can read Euclid data Open

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

astropy/specutils#1271 · 1 comment · Opened Sep 24, 2025
add attribute to Spectrum class to hold un-assigned columns of HDU1 BINTABLE. Open

Difficulty 4/5 3-5 days Newbie friendliness 43/100

astropy/specutils#1260 · Opened Aug 1, 2025
Add IRTF SpeX loader Open

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

astropy/specutils#1259 · 1 comment · Opened Jul 31, 2025
Preserving units in FITS-WCS Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

astropy/specutils#1258 · 4 comments · Opened Jul 25, 2025
Add loader and writer for SpectrumDM Open

enhancement io

Difficulty 5/5 Over a week Newbie friendliness 30/100

astropy/specutils#1249 · 1 comment · Opened Jul 7, 2025
bug in wcs1d-fits reader when multiple axes Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

astropy/specutils#1246 · Opened Jul 1, 2025
Bug in wcs1d-fits reader and flux_unit Open

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

astropy/specutils#1245 · 3 comments · Opened Jun 28, 2025
Make an MRT reader for spectra Open

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

astropy/specutils#1243 · 2 comments · Opened Jun 26, 2025
Allow custom dust models Open

enhancement feature modeling

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

astropy/specutils#1240 · 2 comments · Opened Jun 12, 2025
specutils.manipulation gaussian_smooth does not work on numpy.int64 input stddev Open

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

astropy/specutils#1224 · Opened Apr 8, 2025
Update docs to recommend use of Spectrum instead of Spectrum1D? Open

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

astropy/specutils#1219 · 4 comments · Opened Mar 14, 2025
Update docs to use Spectrum.plot Open

Difficulty 1/5 1-3 hours Newbie friendliness 52/100

astropy/specutils#1218 · Opened Mar 6, 2025
Broken links in docs/releasing.rst Open

bug docs

Difficulty 1/5 Under an hour Newbie friendliness 48/100

astropy/specutils#1215 · Opened Feb 19, 2025
Subaru-pfsObject data loader fails with the latest datamodel Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

astropy/specutils#1201 · Opened Dec 4, 2024
Make ASDF writer Open

Difficulty 4/5 3-5 days Newbie friendliness 32/100

astropy/specutils#1191 · 2 comments · Opened Nov 12, 2024
Add parser to split multi-dimensional 2D spectrum into SpectrumList of 1D spectra Open

feature io

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

astropy/specutils#1188 · 2 comments · Opened Oct 25, 2024
sdss-v mwmVisit data loaders broken Open

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

astropy/specutils#1182 · 4 comments · Opened Oct 10, 2024
slow import times, partially due to astropy.nddata and dask Open

performance

Difficulty 4/5 3-5 days Newbie friendliness 25/100

astropy/specutils#1174 · Opened Oct 2, 2024
Add instructions for citation Open

docs

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

astropy/specutils#1166 · 2 comments · 1 reaction · Opened Sep 10, 2024
Should with_flux_unit also updates uncertainty unit? Open

discussion

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

astropy/specutils#1163 · Opened Aug 27, 2024
Unable to write Spectrum1D as wcs1d-fits after using shift_spectrum_to() Open

io

Difficulty 3/5 1-2 days Newbie friendliness 35/100

astropy/specutils#1161 · 1 comment · Opened Aug 21, 2024
Support for a resolution matrix Open

discussion enhancement

Difficulty 5/5 Over a week Newbie friendliness 20/100

astropy/specutils#1155 · 1 comment · Opened Jul 19, 2024
Uncertainty handling in 'find_lines_threshold' leads to unit conversion errors Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

astropy/specutils#1153 · Opened Jul 18, 2024
Inconsistent treatment of uncertainties in FluxConservingResampler? Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

astropy/specutils#1151 · Opened Jul 6, 2024
"stable" docs link to dev build Open

bug docs

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

astropy/specutils#1150 · Opened Jul 2, 2024
Handle reading/writing of covariance matrices Open

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

astropy/specutils#1149 · 2 comments · Opened Jul 1, 2024
smoothing functions do not use **kwargs for the astropy smoothing work Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

astropy/specutils#1147 · 1 comment · Opened Jun 22, 2024
Add unit check for sum vs integral in line flux + moments Open

analysis enhancement

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

astropy/specutils#1142 · Opened May 28, 2024
Issue with reading JWST MRS cubes Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

astropy/specutils#1140 · 12 comments · Opened May 21, 2024
Improve test coverage for utils Open

testing

Difficulty 3/5 1-2 days Newbie friendliness 35/100

astropy/specutils#1139 · Opened May 17, 2024
Fix broken `SpectralRegion` links in docstrings Open

docs

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

astropy/specutils#1120 · Opened Feb 1, 2024
SpectralCoord can't handle pixel units Open

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

astropy/specutils#1109 · Opened Nov 17, 2023
Spectrum1D WCS has wrong number of dimensions as an NDCube Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

astropy/specutils#1108 · 1 comment · 2 reactions · Opened Nov 15, 2023
Inconsistant expectation for location of header data (vs. other metadata) Open

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

astropy/specutils#1102 · 2 comments · Opened Nov 15, 2023
Improve documentation about headers Open

docs

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

astropy/specutils#1101 · Opened Nov 15, 2023
Add spPlate test Open

io

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

astropy/specutils#1100 · 1 comment · Opened Nov 15, 2023
Round tripping read/write does not preserve WCS Open

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

astropy/specutils#1096 · 5 comments · Opened Nov 14, 2023
BUG: version number is off for `stable` on RTD Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 20/100

astropy/specutils#1092 · 1 comment · Opened Nov 1, 2023
Can spectrum object be lazy? Open

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

astropy/specutils#1090 · Opened Oct 11, 2023
Serialization of Spectrum1D object (How to make Spectrum1D pickle-able?) Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

astropy/specutils#1085 · Opened Sep 27, 2023
Better document/test user-made GWCS input Open

docs testing

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

astropy/specutils#1076 · Opened Aug 28, 2023

astropy/specutils

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