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We discussed about using Galsim WCS instead of Astropy, here is a simple function I have (from this [code](https://github.com/LSSTDESC/descwl_coadd/blob/master/examples/coadd_example.py)) to create Ce…
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Hello,
I’m amazed by the performance of the `fastnifty` method for Lomb-Scargle analysis, and I have started to use it everywhere for LSST analysis (with millions of periods to extract)! I was wond…
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`astropy.io.votable.exceptions.W50` is defined to be the warning for units that do not adhere to the VO standards: https://www.ivoa.net/documents/VOUnits
yet, astropy.units.format.vounit.VOUnit iss…
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Is there an equivalent of a `NaN` for `astropy.time.Time`? Like pandas `NaT` (Not a Time)?
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### Describe the feature
We have CDF IO support in `sunpy/io` but should this be an Astropy [Unified IO](https://docs.astropy.org/en/stable/io/unified.html) plugin for Astropy and then we just constr…
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I recently implemented IO to/from ECSV files via `astropy.table` in `specutils`, and coded up a quick minimal implementation to save out the spatial regions relevant to Jdaviz in https://github.com/sp…
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### Description
Models that have input units cannot be used for fitting. See traceback below.
This is strange because the fitter is smart enough to temporarily strip off the units from the param…
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Issue to track progress of Cycle 4 funding request which was approved in https://github.com/astropy/astropy-project/pull/377 .
- [Project Description](https://github.com/astropy/astropy-project/blo…
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### Describe the feature
More information about VSO data acquisition status.
### Proposed solution
The VSO has a "health report" page here: https://docs.virtualsolar.org/wiki/VSOHealthReport . It w…
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Astropy has ``M_bol`` and ``m_bol`` objects in the same sub-package, and this causes issues when using sphinx-automodapi because MacOS X is case-insensitive meaning that the .rst pages for each of the…