Fsdss-548 -

from astroquery.vizier import Vizier from astropy.coordinates import SkyCoord import astropy.units as u

:

| Product | Format | Size | Access | |---------|--------|------|--------| | Catalog (positions, magnitudes) | FITS/CSV | 350 MB | https://doi.org/xx.xxxx/fsdss548 | | Image cutouts (JPEG/PNG) | 10 GB | https://doi.org/xx.xxxx/fsdss548_images | | Spectra (1‑D) | FITS | 2 TB | https://doi.org/xx.xxxx/fsdss548_spec | FSDSS-548

# Cross‑match to Gaia gaia = Vizier.query_region(coords, radius=1*u.arcsec, catalog='I/350/gaiaedr3')[0] from astroquery

Example A — Functional Requirement

where ( \pi_j(\mathbfx) ) is the prior used by ( a_j ) at its last local update (to avoid double counting). FSDSS-548