IVOA Recommendation: The UCD1+ controlled vocabulary Version 1.23
Andrea Preite Martinez, Sebastien Derriere, Nausicaa Delmotte, Norman, Gray, Robert Mann, Jonathan McDowell, Thomas Mc Glynn, Francois Ochsenbein,, Pedro Osuna, Guy Rixon, Roy Williams

TL;DR
This paper details the structure and vocabulary of UCD1+, a controlled vocabulary for standardized astronomical data description, as part of IVOA recommendations.
Contribution
It introduces the UCD1+ controlled vocabulary, providing a standardized set of terms for astronomical data annotation and their structure.
Findings
Defines the structure of UCD1+
Lists the current controlled vocabulary terms
Provides guidelines for usage and extension
Abstract
This document describes the list of controlled terms used to build the Unified Content Descriptors, Version 1+ (UCD1+). The document describing the UCD1+ can be found at the URL: http://www.ivoa.net/Documents/latest/UCD.html. This document reviews the structure of the UCD1+ and presents the current vocabulary.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
