MAST STScI Hubble Source Catalog Version 2 (HSCv2) TAP service

The MAST Archive at STScI TAP end point for the Hubble Source Catalog, version 2.1. The Hubble Source Catalog (HSC) is designed to optimize science from the Hubble Space Telescope by combining the tens of thousands of visit-based source lists in the Hubble Legacy Archive (HLA) into a single master catalog. This service uses an older version of the Hubble Source Catalog. The HSC v2 contains members of the WFPC2, ACS/WFC, WFC3/UVIS and WFC3/IR Source Extractor source lists from HLA version DR9.1 (data release 9.1). The crossmatching process involves adjusting the relative astrometry of overlapping images so as to minimize positional offsets between closely aligned sources in different images. After correction, the astrometric residuals of crossmatched sources are significantly reduced, to typically less than 10 mas. The relative astrometry is supported by using Pan-STARRS, SDSS, and 2MASS as the astrometric backbone for initial corrections. In addition, the catalog includes source nondetections. The crossmatching algorithms and the properties of the initial (Beta 0.1) catalog are described in Budavari and Lubow (2012). The Table Access Protocol (TAP) lets you execute queries against our database tables, and inspect various metadata. Upload is not currently supported.

Additional Info

Field Value
B2FINDVersion 2.4.0
Discipline Not stated
PublicationYear 2018
Publisher Space Telescope Science Institute Archive