The First U.S. Naval Observatory Robotic Astrometric Telescope Catalog
Abstract
URAT1 is an observational, astrometric catalog covering most of the slant -15 area and a magnitude range of about R = 3-18.5. Accurate positions (typically 10-30 mas standard error) are given for over 228 million objects at a mean epoch around 2013.5. For the over 188 million objects matched with the Two Micron All Sky Survey (2MASS) point-source catalog proper motions (typically 5-7 mas yr-1 standard errors) are provided. These data are supplemented by 2MASS and AAVSO Photometric All-Sky Survey (APASS) photometry. Observations, reductions, and catalog construction are described, together with results from external data verifications. The catalog data are served by CDS, Strasbourg (I/329).
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2015
- Accession Number
- AD1005299
Entities
People
- A. Henden
- A. Rhodes
- C. Crockett
- C. Finch
- C. Kilian
- E. Ferguson
- F. Harris
- G. Bredthauer
- G. Wieder
- Henry L. Harris
- J. Munn
- J. Subasavage
- M. Divittorio
- M. Schultheiss
- Norbert Zacharias
- T. Rafferty
- T. Tilleman
Organizations
- United States Naval Observatory