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Resource Record Summary

Image Service:
FIRST
Short name: FIRST
IVOA Identifier: ivo://nasa.heasarc/skyview/firstPublisher: NASA/GSFC HEASARCivo://nasa.heasarc/ASD[Pub. ID]
More Info: https://skyview.gsfc.nasa.gov
VO Compliance: Level 2: This is a VO-compliant resource.		 Status: active
Registered: 2024 May 17 00:00:00Z
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Description


The VLA FIRST (Faint Images of the Radio Sky at Twenty-centimeters) is a project designed to produce the radio equivalent of the Palomar Observatory Sky Survey over 10,000 square degrees of the North Galactic Cap. The <a href="https://sundog.stsci.edu/top.html"> FIRST home page </a> has details of the instrumentation, status of the project, and data available. Currently about 5000 images of approximately .775x.58 degrees are available. <P> These FIRST data have been retrieved from the <a href="ftp://archive.stsci.edu/pub/vla_first/data/"> FIRST FTP archive </a> at the <a href="https://www.stsci.edu/resources"> Space Telescope Science Institute</a>. <p> The FIRST survey is included on the <b>SkyView High Resolution Radio Coverage </b><a href="/images/high_res_radio.jpg"> map</a>. This map shows coverage on an Aitoff projection of the sky in equatorial coordinates. Provenance: The FIRST project team: R.J. Becker, D.H. Helfand, R.L. White M.D. Gregg. S.A. Laurent-Muehleisen.. This is a service of NASA HEASARC.

More About this Resource

About the Resource Providers

This section describes who is responsible for this resource

Publisher: NASA/GSFC HEASARCivo://nasa.heasarc/ASD[Pub. ID]

Creator: The FIRST project team: R.J. Becker, D.H. Helfand, R.L. White M.D. Gregg. S.A. Laurent-Muehleisen. Contributor: Skyview Project

Contact Information:
X SkyView Help
Email:

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
Relevant dates for this Resource:
  • Created: 2024 May 17

This resource was registered on: 2024 May 17 00:00:00Z
This resource description was last updated on: 2024 May 17 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 data (specifically, images). With this type of service, you can search for data by issuing a query, and information about available data is returned as a table.
Resource type keywords:
  • Archive
 Subject keywords:
  • surveys
Intended audience or use:
  • Research: This resource provides information appropriate for supporting scientific research.
More Info: https://skyview.gsfc.nasa.gov

Related Resources:

This is a service for accessing data from:
NASA/GSFC Exploration of the Universe Division ivo://nasa.heasarc/eud [Res. ID]

Data Coverage Information

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

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

Sky Coverage: Regions covered:

    Wavebands covered:

    • Radio

    Available Service Interfaces

    Simple Image AccessXX

    This is a standard IVOA service used to search for images from this resource that overlap with a specified region of the sky.

    VO Compliance: Level 2: This is a VO-compliant resource.
    Available endpoints for the standard interface:
    • https://skyview.gsfc.nasa.gov/cgi-bin/vo/sia.pl?survey=first&
    Image service type: Cutout: images will be cut out to match the requested region.
    Maximum query region accepted: no size limit
    Maximum region size returned: no size limit
    Maximum image size returned: X pixels
    Maximum image size returned: 10 MB
    Maximum number of matching records returned: 500
    Custom Service

    This is service that does not comply with any IVOA standard but instead provides access to special capabilities specific to this resource.

    VO Compliance: Level 2: This is a VO-compliant resource.
    Available endpoints for this service interface:

    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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