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07 Nov 2006 CALDB version 3.2.4 has been released. This release contains ACIS time-dependent gain calibration files only. See the How CALDB 3.2.4 Affects Your Analysis section of the CIAO release notes and the CALDB release notes for details. 31 Jul 2006 New webpage: Effective Area Cross-calibration Results Involving the Chandra X-ray Observatory This webpage provides a discussion of cross-calibration work relating the Chandra X-ray Observatory to other X-ray missions, particularly XMM-Newton. Much of this webpage was developed in cooperation with the XMM-Newton calibration team. |
Data Products GuideThe Data Products Guide describes the contents and purpose of each Chandra data product. Detailed information is available for each of the following filetypes: These pages may also be accessed from the tables of data products. This document is a work in progress. For the most up-to-date description of the common Chandra data products, refer to the Introduction to the Data Products thread. Primary ProductsIn March 2002, the data products were rearranged such that all products necessary for most analyses are in the primary directory.
Secondary ProductsIf you are interested in reprocessing your data, you will also need the level 1 files, which are in the secondary directory.
Supporting ProductsThe pipeline-produced supporting products are generally not needed in data analysis. These files are created by intermediate processing steps.
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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 © 1998-2004. All rights reserved. |
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