Chandra X-Ray Observatory

CDA - SPIE Repository

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: 10.6
  • CALDBVER: 4.7.7
What's New
CXO Papers Repository

The CXO Papers Repository provides information regarding (and in many cases full-text access to) articles and academic papers concerning the Chandra mission.

Here is a breakout of major paper categories:

Instruments: these cover the instruments aboard the spacecraft: relevant tabs are ACIS, HRC, HETG, LETG, HRMA, PCAD and EPHIN.
Software: these papers concern Chandra-specific software tools such as CIAO, Sherpa, ChIPS, ChaRT, etc.
Operations: these concern major ongoing efforts in support of the mission, such as the Chandra Bibliography
General Observatory: papers that are listed under four or more tabs are considered "General" Chandra papers.

This page maintained by the Chandra Data Archive (

Last modified: 2018-02-27

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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: Smithsonian Institution, Copyright © 1998-2017. All rights reserved.