CDA - Home
The Archive
- Public Data
- Proprietary Data
- Repro III
- Repro IV
- Privacy Impact Assessment
- Release Notes
- Documentation
- Archive Operations Team
Search and Retrieve Data
Advanced Data Services
- Synopsis of Services
- Footprint Service
- Chandra MOCs
- Chandra Source Catalog
- SDSS Cross-Match Catalog
- Bibliography Search
Archive User Services
- Synopsis of Services
- Processing Status
- Dataset Identifiers
- Contributed Datasets
- CXO Papers Repository
Chandra Aggregated Datasets
Publishing Chandra Results
Data Analysis Links
- The archive is fully functional.
- Reprocessing has been completed for
- Phase I: 2005-11-13 to 2011-12-31
- Phase II: 2000-01-30 to 2005-11-13
- ASCDSVER: 10.6
- CALDBVER: 4.7.8
- Global Chandra Coverage
2018-02-14
Check out the new Chandra MOC page. - Browsers security warnings
2017-12-22
Are Chandra Data Archive pages safe? See full announcement. - Updated CXO Papers Repository
2017-05-02
Check out the new look of the CXO Papers Repository. - Past Notices
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 MOCs: Multi-Order Coverage maps (MOCs) for public Chandra observations, that can be used to visualize and analyze the global Chandra footprint.
- 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.
- FTP: 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.