CDA - Announcement Archive
The Archive
- Public Data
- Proprietary Data
- Repro III
- Repro IV
- Repro V
- Privacy Impact Assessment
- Release Notes
- Documentation
- Archive Operations Team
Search and Retrieve Data
Advanced Data Services
Archive User Services
- Synopsis of Services
- Processing Status
- Special Requests
- Dataset Identifiers (DOIs)
- Contributed Datasets
- CXO Papers Repository
Chandra Aggregated Datasets
Publishing Chandra Results
Data Analysis Links
- The archive is fully functional.
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Reprocessing IV has been completed in December 2014.
- ASCDSVER: 10.13
- CALDBVER: 4.11.5
- Electrical Outage 11/05/21 - 11/06/21
2021-11-05
There will be a planned electrical outage Friday, November 5 2021, 5:30PM - Saturday, November 6 2021, 6:00PM EDT. During this time period ChaSeR and other archive interfaces will be unavailable. - Electrical Outage on 07/28/21
2021-07-26
There will be a planned electrical outage Wednesday, July 28 2021, 8:00PM - 10:00PM EDT. During this time period ChaSeR and other archive interfaces will be unavailable. - Downtime on 6/12/21
2021-06-10
Due to electrical work, the public interfaces of the Chandra Data Archive will not be available on Saturday 6/12 from 4 AM to 9 PM. - Repro V Begins
2020-10-26
The fifth major reprocessing of the archive (Repro V) has started! Details can be found here. - Past Notices
News Item 53 - Electrical Outage 11/05/21 - 11/06/21
2021-11-05
News Item 52 - Electrical Outage on 7/28/21
2021-07-26
News Item 51 - Downtime on 6/12/21
2021-06-10
News Item 50 - Repro V Begins
2020-10-26
News Item 49 - Archival Target Names
2020-09-15
News Item 48 - Chandra Footprint Service
2018-05-14
News Item 47 - Global Chandra Coverage
2018-02-14
News Item 46 - Browsers security warnings
2017-12-22
News Item 45 - Updated CXO Papers Repository
2017-05-02
News Item 44 - Take Our Survey
2016-12-29
News Item 43 - Retirement of RetrievER
2015-04-02
News Item 42 - Chaser Retired
2013-04-02
News Item 41 - Retiring Chaser on 04-01-2013
2013-02-26
News Item 40 - Update on CDFS 2010 Data
2010-09-01
News Item 39 - Chandra Deep Field South: 2000, 2007 and 2010
2010-08-25
News Item 38 - Chandra Deep Field North: 2000-2002 Observations
2008-12-01
News Item 37 - Chandra Deep Field South: 2000 and 2007 Observations (Superseded)
2008-05-01
News Item 36 - Chandra Deep Field South: 2007 Observations (Superseded)
2007-12-20
News Item 35 - Provisional Retrieval Interface Decommissioned
2006-12-15
News Item 34 - Provisional Retrieval Interface Replaced by RetrievER
2006-11-28
News Item 33 - WebChaSeR Access through the Mirror Site at LEDAS
2006-07-28
News Item 32 - Archive Mirror in India
2005-10-14
News Item 31 - Popular Search Interface
2004-12-08
News Item 30 - New Data Distribution Procedures
2004-12-02
News Item 29 - Special Request Form
2004-12-02
News Item 28 - Dataset Ids
2004-11-15
News Item 27 - Cas A Megasecond Observations
2004-05-07
News Item 26 - New Interface to the Chandra Bibliography Database
2004-01-16
News Item 25 - WebChaSeR Access through the Mirror Site at LEDAS (Superseded)
2003-07-03
News Item 24 - Chandra Group in ADS
2003-07-03
News Item 23 - The AGASC (AXAF Guide and Acquisition Star Catalog) is available through ftp
2003-04-09
News Item 22 - Public DDT Observations of GRB021004
2002-10-11
News Item 21 - Release of anonymous ftp version of the CDA
2002-09-19
News Item 20 - Public DDT Observations of GRB020813
2002-08-16
News Item 19 - New Composition of Primary and Secondary packages
2002-05-14
News Item 18 - New release of ChaSeR and WebChaSeR
2002-04-09
News Item 17 - New release of ChaSeR and WebChaSeR
2002-02-13
News Item 16 - ChaSeR - Web version
2001-12-10
News Item 15 - New Processing Status Tool
2001-11-15
News Item 14 - RXJ1856.5-3754 Isolated Neutron Star Observations
2001-11-09
News Item 13 - Chandra Deep Fields (Superseded)
2001-09-18
News Item 12 - ChaSeR
News Item 11 - Links to ADS Abstract Service (Superseded)
News Item 10 - Aspect
News Item 9 - Chandra Deep Fields
News Item 8 - Chandra/Hubble Deep Field North (Superseded)
News Item 7 - Chandra Deep Field South (Superseded)
News Item 6 - Caldb
News Item 5 - Data Distribution to Designated Observers
News Item 4 - LEDAS Mirror (Superseded)
News Item 3 - Reprocessing
News Item 2 - Public Data (Superseded)
News Item 1 - Changed Sequence Numbers