Chandra X-Ray Observatory
	(CXC)

CDA - Home

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CDA Status
    • The archive is fully functional.
    Reprocessing Status
    • Reprocessing has been completed for
      • Phase I: 2005-11-13 to 2011-12-31
      • Phase II: 2000-01-30 to 2005-11-13
    Current Software Releases
    • ASCDSVER: 10.5.1.1
    • CALDBVER: 4.7.2
    Announcements
Welcome to the Chandra Data Archive

The Chandra Data Archive (CDA) plays a central role in the operation of the Chandra X-ray Center (CXC) by providing support to the astronomical community in accessing Chandra data. The CDA offers access to digital archives through powerful query engines, including VO-compliant interfaces and also serves as a permanent storage repository of contributed data products by authors who have processed images or other pertinent and valuable datasets that are essential to their publications.

Access the Chantra Data Archive

  • ChaSeR: Search & Retrieval interface for scientists, allowing specification of detailed selection criteria. Chandra Fast Image is a simplified quick search tool for Chandra X-ray images and other data for the general public.
  • Footprint Service: A search by position or object name overlays the footprints of Chandra Observations on Digital Sky Survey images, allowing further selection and retrieval of observations.
  • Chandra Source Catalog: The most comprehensive catalog of sources detected in public Chandra Observations. The catalog can be accessed through CSCview.
  • SDSS Cross-Match Catalog: A cross-matching service linking Chandra and SDSS sources.
  • Bibliography Search: Simultaneous browsing of the archive and the literature with a large repertoire of selection criteria.
  • cdaftp: Direct FTP access to the primary and secondary data products for all observations that are publicly released.
  • Processing Status: Information on the processing status of Chandra observations.
  • Special Requests: Requests for services not available through standard interfaces such as requesting a custom dataset identifier; requesting a custom database query; and many others.

This page maintained by the Chandra Data Archive (arcops@head.cfa.harvard.edu).

Last modified: 2016-02-26

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The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA.   Email:   cxcweb@head.cfa.harvard.edu Smithsonian Institution, Copyright © 1998-2016. All rights reserved.