Date: Thu, 27 Mar 2003 15:51:41 -0800 (PST) From: SIRTF Science Center HelpDesk Subject: sirtf-astro: Release of 2MASS catalogs +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ You are subscribed to sirtf-astro. To unsubscribe please send an email to majordomo@ipac.caltech.edu with "unsubscribe sirtf-astro " where your_email@address is the email address at which you receive this mailing. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Contents of mailing: 1) Release of 2MASS catalogs +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Though 2MASS is near IR data, the point source catalogs will be valuable to the SIRTF observers for selecting peak up sources for use in spectroscopic observations with IRS. For that reason we forward the following : The Two Micron All Sky Survey (2MASS) is pleased to announce that the All-Sky Data Release Point Source Catalog (PSC) and Extended Source Catalog (XSC) are now available. The All-Sky PSC contains accurate positions and J, H and Ks photometry for over 470 million sources, most of which are stars in the Milky Way. The All-Sky XSC contains positions, three-band photometry and basic shape information for over 1.6 million resolved sources, most of which are galaxies. The 2MASS "Quicklook" Atlas Images, have been available online since October of last year. An introduction to the Release data products and supporting documentation is available at http://www.ipac.caltech.edu/2mass/releases/allsky/, or you may access the Catalogs and Images directly from the NASA/Infrared Science Archive at http://irsa.ipac.caltech.edu/. The Catalogs will be available via bulk ftp download within the next three weeks and on a limited-distribution DVD-ROM in the near future. Users are strongly encouraged to review the Explanatory Supplement to the 2MASS All-Sky Data Release at http://www.ipac.caltech.edu/2mass/releases/allsky/doc/explsup.html for general information about the Survey, the formats, characteristics and cautionary notes about the Catalogs. User support is available via the 2MASS Help Desk at 2mass@ipac.caltech.edu. ------------------------------------------------------------------------------- The Two Micron All Sky Survey is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology. Funding for the survey has been provided by the National Aeronautics and Space Administration and the National Science Foundation.