Accession Number : AD1005299


Title :   The First U.S. Naval Observatory Robotic Astrometric Telescope Catalog


Descriptive Note : Journal Article


Corporate Author : US Naval Observatory Washington United States


Personal Author(s) : Zacharias,N ; Finch,C ; Subasavage,J ; Crockett,C ; Divittorio,M ; Ferguson,E ; Harris,F ; Harris,H ; Kilian,C ; Munn,J ; Rhodes,A ; Schultheiss,M ; Tilleman,T ; Wieder,G ; Bredthauer,G ; Henden,A ; Rafferty,T


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1005299.pdf


Report Date : 01 Oct 2015


Pagination or Media Count : 13


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).


Descriptors :   star position , observation , atmospheric motion , images , TELESCOPES


Distribution Statement : APPROVED FOR PUBLIC RELEASE