simonsobs/pixell

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A rectangular pixel map manipulation and harmonic analysis library derived from Sigurd Naess' enlib.

Stars: 60
Forks: 36
Open beginner issues: 0
Indexed issues: 32
Avg merge: 1d 18h
Merged PRs (30d): 4

Dominant language: Python
License: No license data
Last GitHub push: Sep 17, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted good first issue

Beginner friendly Everything

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32 open issues indexed

reproject gal,cel rotation differs from the ICRS path by ~2.2 arcsec Open

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

simonsobs/pixell#337 · Opened Aug 12, 2026
Geometry function APIs need to converge Open

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

simonsobs/pixell#336 · Opened Apr 8, 2026
fix wcs defined twice Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

simonsobs/pixell#334 · Opened Mar 10, 2026
encamp resample fit creates large negative ell values. Open

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

simonsobs/pixell#333 · Opened Feb 25, 2026
recenter_cylindrical_ra calls recenter_cylindrical_x without wcs arg Open

Difficulty 1/5 Under an hour Newbie friendliness 55/100

simonsobs/pixell#328 · Opened Jan 24, 2026
axis is not defined in this function Open

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

simonsobs/pixell#327 · 1 comment · Opened Jan 23, 2026
Map Union with arbitrary op Open

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

simonsobs/pixell#323 · Opened Dec 2, 2025
slice_geometry ignores "pre"-indices Open

bug

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

simonsobs/pixell#316 · Opened Oct 31, 2025
Allow parallel transfer_alm Open

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

simonsobs/pixell#311 · Opened Oct 9, 2025
Use lenspyx restrict to possibly speed-up lensing Open

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

simonsobs/pixell#310 · Opened Oct 9, 2025
Default output resolution for reproject.thumbnails is half of the input map Open

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

simonsobs/pixell#294 · 1 comment · Opened Mar 3, 2025
Enmap modifies wcs when read/writing from file Open

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

simonsobs/pixell#287 · 3 comments · Opened Jan 20, 2025
curvedsky.rand_alm crashes with single-precision sims if lmax less than the ps lmax Open

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

simonsobs/pixell#282 · Opened Jan 9, 2025
Print warning if no wcs is provided in `write_map` Open

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

simonsobs/pixell#274 · Opened Oct 16, 2024
Faster almxfl? Open

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

simonsobs/pixell#273 · 3 comments · Opened Oct 7, 2024
enplot: add background color setting Open

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

simonsobs/pixell#265 · Opened Aug 10, 2024
enmap.write_fits can crash if multiple processes write to the same file at roughly the same time Open

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

simonsobs/pixell#252 · 1 comment · Opened Feb 22, 2024
matplotlib gives error if colormap already registered, problem in colorize Open

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

simonsobs/pixell#207 · Opened Feb 21, 2023
pix2sky breaks at RA = +/- 180 due to reliance on floating-point arithmetic Open

bug

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

simonsobs/pixell#202 · 8 comments · Opened Dec 13, 2022
docs: Describe options that allow the colorbar to appear larger Open

documentation

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

simonsobs/pixell#169 · 4 comments · Opened Nov 30, 2021
Empty borders after reprojection Open

bug

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

simonsobs/pixell#145 · Opened Jun 16, 2021
Improve IAU/COSMO documentation in enmap.read_map Open

documentation good first issue

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

simonsobs/pixell#144 · 6 comments · 1 reaction · Opened Jun 15, 2021
enmap.submap docs are misleading Open

documentation

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

simonsobs/pixell#129 · 1 comment · Opened Apr 6, 2021
Change print statements to `logging.info` Open

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

simonsobs/pixell#116 · 6 comments · Opened Nov 10, 2020
pixell cannot load CompImageHDU Open

bug

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

simonsobs/pixell#96 · 6 comments · 1 reaction · Opened May 28, 2020
Complete the usage guide Open

documentation

simonsobs/pixell#87 · 1 assignee · Opened May 8, 2020
Feature request: enplot improvements Open

enhancement

simonsobs/pixell#85 · 1 comment · 1 assignee · Opened May 1, 2020
MPI cleanup removes useful traceback from output Open

simonsobs/pixell#64 · 1 assignee · Opened Jul 31, 2019
Make NERSC/MPI issue more transparent Open

documentation

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

simonsobs/pixell#57 · Opened Apr 5, 2019
write_fits requires 2x memory because it makes a copy Open

simonsobs/pixell#45 · 1 assignee · Opened Dec 22, 2018
Add unit tests: get to at least 70% coverage Open

help wanted

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

simonsobs/pixell#16 · Opened Sep 17, 2018
Add documentation: provide formatted docstrings for all functions Open

documentation help wanted

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

simonsobs/pixell#15 · 1 comment · Opened Sep 17, 2018

simonsobs/pixell

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