Apertif Lockman: Resource Record Summary

Resource Record Summary

Image Service:
Apertif Lockman - Mosaic

Short name: Apertif Lockman IVOA Identifier: ivo://astron.nl/apertif_lockman/q/cutoutPublisher: ASTRON More Info: https://vo.astron.nl/apertif_lockman/q/cutout/info VO Compliance: Level 2: This is a VO-compliant resource.	Status: active Registered: 2025 Feb 04 12:00:00Z
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Description

Apertif is a phased-array feed system for the Westerbork Synthesis Radio Telescope (WSRT), operating at 1.4 GHz and providing forty instantaneous beams over 300 MHz of bandwidth. This data release includes the image of the Lockman Hole field observed with Apertif. The image covers 136 square degree region, has an angular resolution of 15x13 arcseconds and a median background noise of 27 μJy/beam. The corresponding source catalog, complete down to the 0.3 mJy level, includes 55166 sources. https://science.astron.nl/telescopes/wsrt-apertif/apertif-data-access/data-releases/apertif-single-fields/

More About this Resource

About the Resource Providers

This section describes who is responsible for this resource

Publisher: ASTRON

Creator: Apertif Team

Contact Information:

X Michael Sipior
Email: vo at astron.nl
Address: Oude Hoogeveensedijk 4
7991PD Dwingeloo
the Netherlands

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:

Updated: 2025 Feb 24 08:51:26

This resource was registered on: 2025 Feb 04 12:00:00Z
This resource description was last updated on: 2025 Feb 24 08:51:26Z

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: Survey Images and Catalogs	Subject keywords: astronomical databases — surveys — catalogs — radio This service provides data from: facility: WSRT instrument: Apertif
Intended audience or use: Research: This resource provides information appropriate for supporting scientific research.
More Info: https://vo.astron.nl/apertif_lockman/q/cutout/info
Related Resources: Services that provide access to data in this resource: The VO @ ASTRON TAP service ivo://astron.nl/tap [Res. ID]

	Data Coverage Information
	This section describes the data's coverage over the sky, frequency, and time. 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://vo.astron.nl/apertif_lockman/q/cutout/siap.xml?

Image service type: Mosaic: images will be cut out and resampled to match the requested region, resolution, and projection.
Maximum query region accepted:
Maximum region size returned:
Maximum image size returned:
Maximum image size returned:
Maximum number of matching records returned: 1000000

	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: https://vo.astron.nl/apertif_lockman/q/cutout/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: https://vo.astron.nl/apertif_lockman/q/cutout/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: https://vo.astron.nl/apertif_lockman/q/cutout/tableMetadata

	Table Access Protocol - Auxiliary ServiceXX
	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://vo.astron.nl/tapX(version 1.1 compatible)