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Resource Record Summary

Catalog Service:
MAST SkyMapper Southern Survey Data Release 4 (SMSS DR4)
Short name: MAST SkyMapper
IVOA Identifier: ivo://archive.stsci.edu/catalogs/skymapperdr4Publisher: Space Telescope Science Institute Archiveivo://archive.stsci.edu/stsci-arc[Pub. ID]
More Info: https://skymapper.anu.edu.au/
VO Compliance: Level 2: This is a VO-compliant resource.		 Status: active
Registered: 2024 Apr 16 20:18:39Z
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Description


MAST hosts a copy of the SkyMapper DR4 catalog. SMSS DR4 contains optical photometry in the 6 SkyMapper filters (u,v,g,r,i,z) for ~700 million astrophysical sources over 26,000 sq.deg, ranging from the South Celestial Pole to Dec=+16 degrees for objects with data in all bands, and some sources as far North as +29 degrees. The photometry is drawn from over 15 billion measurements made from more than 400,000 images acquired by the 1.3m SkyMapper telescope between March 2014 and September 2021. The typical 10-sigma depths for each field range between 18.5 and 20.5 ABmag, depending on the filter, but certain sky regions include longer exposures that reach as deep as 22 ABmag. Compared to previous SkyMapper data releases, DR4 includes significant enhancements in data processing, most notably a new photometric calibration anchored to synthetic photometry from Gaia low-resolution spectroscopy, which resolves reddening- and spatial-trends identified in previous releases, especially in the bluest filters, u and v. A large number of other photometric and spectroscopic surveys have been cross-matched to the dr4.master table of objects, to facilitate various scientific investigations.

More About this Resource

About the Resource Providers

This section describes who is responsible for this resource

Publisher: Space Telescope Science Institute Archiveivo://archive.stsci.edu/stsci-arc[Pub. ID]

Creator: Space Telescope Science Institute Catalogs and Surveys Branch

Contact Information:
X STScI Archive
Email: archive at stsci.edu

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: 2024 Apr 16 20:18:39Z
This resource description was last updated on: 2024 Apr 16 20:18:39Z
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:
  • Observational astronomy
  • Galactic and extragalactic astronomy
  • Stellar astronomy
  • Surveys
Intended audience or use:
  • Research: This resource provides information appropriate for supporting scientific research.
More Info: https://skymapper.anu.edu.au/

Data Coverage Information

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

Wavebands covered:

  • Optical

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.
Description:
Available endpoints for the standard interface:
  • http://gsss.stsci.edu/webservices/vo/ConeSearch.aspx?CAT=SMSSdr4&X(version compatible)
Maximum search radius accepted: 0.25 degrees
Maximum number of matching records returned: 1000
This service will ignore the VERB input parameter.
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:
  • https://mast.stsci.edu/vo-tap/api/v0.1/skymapperdr4/
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:
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:
    Additional non-standard VOSI Availability interfaces:
    • URL-based interface: https://mast.stsci.edu/vo-tap/api/v0.1/skymapperdr4/availability
    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:
      Additional non-standard VOSI Capabilities interfaces:
      • URL-based interface: https://mast.stsci.edu/vo-tap/api/v0.1/skymapperdr4/capabilities
      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: https://mast.stsci.edu/vo-tap/api/v0.1/skymapperdr4/tables
        DALI ExamplesXX

        This is a standard IVOA service endpoint that returns a document with usage examples or similar material to the user.

        VO Compliance: Level 2: This is a VO-compliant resource.
        Available endpoints for the standard interface:
          Additional non-standard DALI Examples interfaces:

          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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