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Resource Record Summary

Catalog Service:
Chandra Source Catalog

Short name: CSC
IVOA Identifier: ivo://cxc.harvard.edu/cscPublisher: Chandra X-ray Observatory ivo://cxc.harvard.edu/cxo[Pub. ID]
More Info: http://cxc.harvard.edu/csc/
VO Compliance: Level 2: This is a VO-compliant resource.
Status: active
Registered: 2009 Jun 04 15:28:15Z
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Description


The Chandra X-ray Observatory is the U.S. follow-on to the Einstein Observatory and one of NASA"s Great Observatories. Chandra was formerly known as AXAF, the Advanced X-ray Astrophysics Facility, but renamed by NASA in December, 1998. Originally three instruments and a high-resolution mirror carried in one spacecraft, the project was reworked in 1992 and 1993. The Chandra spacecraft carries a high resolution mirror, two imaging detectors, and two sets of transmission gratings. Important Chandra features are: an order of magnitude improvement in spatial resolution, good sensitivity from 0.1 to 10 keV, and the capability for high spectral resolution observations over most of this range. The Chandra Source Catalog (CSC) includes information about X-ray sources detected in observations obtained using the Chandra X-ray Observatory. Release 2.0 of the catalog includes 317,167 point, compact, and extended sources detected in ACIS and HRC-I imaging observations released publicly prior to the end of 2014. Observed source positions and multi-band count rates are reported, as well as numerous derived spatial, photometric, spectral, and temporal calibrated source properties that may be compared with data obtained by other telescopes. Each record includes the best estimates of the properties of a source based on data extracted from all observations in which the source was detected. The Chandra Source Catalog is extracted from the CXC"s Chandra Data Archive (CDA). The CXC should be acknowledged as the source of Chandra data. For detailed information on the Chandra Observatory and datasets see: http://cxc.harvard.edu/ for general Chandra information; http://cxc.harvard.edu/cda/ for the Chandra Data Archive; http://cxc.harvard.edu/csc/ for Chandra Source Catalog information.

More About this Resource

About the Resource Providers

This section describes who is responsible for this resource

Publisher: Chandra X-ray Observatory ivo://cxc.harvard.edu/cxo[Pub. ID]

Creator: Chandra X-ray Center

Contact Information:
X Chandra Data Archive, Chandra X-ray Center
Email: archelp at head.cfa.harvard.edu
Address: 60 Garden Street MS 67
Cambridge
MA 02138
USA

Status of This Resource

This section provides some status information: the resource version, availability, and relevant dates.

Version: n/a
Availability: This is an active resource.
  • This service apparently provides only public data

This resource was registered on: 2009 Jun 04 15:28:15Z
This resource description was last updated on: 2019 Oct 24 00:00:00Z

What This Resource is About

This section describes what the resource is, what it contains, and how it might be relevant.

Resource Class: CatalogService
This resource is a service that provides access to catalog data. You can extract data from the catalog by issuing a query, and the matching data is returned as a table.
Resource type keywords:
  • Catalog
Subject keywords:
  • X-ray astronomy
  • galaxies
  • quasars
  • stars
  • X-ray
  • photometry
  • spectroscopy
  • variability
Intended audience or use:
  • Research: This resource provides information appropriate for supporting scientific research.
  • University: This resource provides information appropriate for use in university education.
  • Community College: This resource provides information appropriate for use in community/junior college or early university education.
More Info: http://cxc.harvard.edu/csc/

Related Resources:

This resource is derived from:
Chandra Data Archive ivo://cxc.harvard.edu/cda [Res. ID]

Data Coverage Information

This section describes the data's coverage over the sky, frequency, and time.

Reference Coordinate System: TT-ICRS-TOPOXXivo://STClib/CoordSys#TT-ICRS-TOPO[Res. ID]

Sky Coverage: Regions covered:

  • All-sky: The data from this resource is distributed over the entire sky.

Spectral Coverage:

  • 0.12 - 10.0 keV
Wavebands covered:
  • X-ray

Temporal Coverage:

  • From 1999-08-20T00:00:00

Available Service Interfaces

Simple Cone SearchXXSearch Me

This is a standard IVOA service that takes as input a position in the sky and a radius and returns catalog records with positions within that radius.

VO Compliance: Level 2: This is a VO-compliant resource.
Available endpoints for the standard interface:
  • http://cda.cfa.harvard.edu/cscvo/coneSearch?
Maximum search radius accepted: 10 degrees
Maximum number of matching records returned: 100000
This service supports the VERB input parameter:
Use VERB=1 to minimize the returned columns or VERB=3 to maximize.
Table Access ProtocolXX

This is a standard IVOA service that takes as input an ADQL or PQL query and returns tabular data.

VO Compliance: Level 2: This is a VO-compliant resource.
Available endpoints for the standard interface:
  • http://cda.cfa.harvard.edu/csctap
VOSI CapabilitiesXX

This is a standard IVOA service endpoint that returns the detailed capabilities of the main IVOA standard service.

VO Compliance: Level 2: This is a VO-compliant resource.
Available endpoints for the standard interface:
VOSI AvailabilityXX

This is a standard IVOA service endpoint that returns information about the availability and uptime of the main IVOA standard service.

VO Compliance: Level 2: This is a VO-compliant resource.
Available endpoints for the standard interface:
VOSI TablesXX

This is a standard IVOA service endpoint that returns information about the table schema managed by the main IVOA standard service.

VO Compliance: Level 2: This is a VO-compliant resource.
Available endpoints for the standard interface:
    Additional non-standard VOSI Tables interfaces:
    • URL-based interface: http://cda.cfa.harvard.edu/csctap/tables


    Developed with the support of the National Science Foundation
    under Cooperative Agreement AST0122449 with the Johns Hopkins University
    The NAVO project is a member of the International Virtual Observatory Alliance

    This NAVO Application is hosted by the Space Telescope Science Institute

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