From msk at astro.umd.edu Tue May 3 10:51:30 2022 From: msk at astro.umd.edu (Michael S. P. Kelley) Date: Tue, 3 May 2022 10:51:30 -0400 Subject: [AstroPy] ANN: sbpy 0.3 released Message-ID: Dear all, The sbpy project is pleased to announce a new release of sbpy: v0.3. sbpy is an astropy affiliated package for small body (comet and asteroid) research. Notable highlights: * New VectorialModel to implement the Festou (1981) cometary gas coma model of the same name. Help is needed to test and validate this code. https://sbpy.readthedocs.io/en/latest/sbpy/activity/gas.html#vectorial-model * New ability to redden a solar spectrum. https://sbpy.readthedocs.io/en/latest/sbpy/spectroscopy/index.html#spectral-reddening * DataClass fields (for ephemerides, orbits, etc) are now checked for physically consistent units. * Many bug fixes and other enhancements, including a package infrastructure overhaul to use contemporary standards. Tracking astropy development, astropy v4+ is required. sbpy is available at GitHub (https://github.com/NASA-Planetary-Science/sbpy/) and PyPI. Install/upgrade with `pip install -U sbpy`. The sbpy project is funded by NASA through the Planetary Data Archiving, Restoration, and Tools grant program. Funding for the sbpy project will continue through 2024, culminating with the release of v1.0. Cheers, Mike Kelley for the sbpy developers From pdzwig at summaventures.com Tue May 17 18:31:33 2022 From: pdzwig at summaventures.com (Peter Dzwig) Date: Tue, 17 May 2022 23:31:33 +0100 Subject: [AstroPy] Specutils: use of uncertainty in template_correlate Message-ID: <81598fa2-ea71-e221-9ba7-2fb757d0db00@summaventures.com> Does specutils *require* an uncertainty in template_correlate? I have a large set of compound spectra (whose origin comesfrom a variety of sources). I want to correlate these with individual spectra (possibly from yet other sources) that, in general, can be assumed to have differing (and possibly unknown) uncertainties. In cases where there is not a readily defined uncertainty such as this there a way to get specutils to estimate the uncertainty itself? Or is another approach appropriate? Thanks for any help Peter Dzwig -- Dr. Peter Dzwig