2MASS: Resource Record Summary

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Resource Record Summary

Image Service:
Two Micron All Sky Survey (H-Band)

Short name: 2MASS IVOA Identifier: ivo://nasa.heasarc/skyview/2massPublisher: 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: 2025 Mar 07 00:00:00Z
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Description

2MASS data were collected by uniformly scanning the entire sky in three near-infrared bands to detect and characterize point sources brighter than about 1 mJy in each band, with signal-to-noise ratio (SNR) greater than 10, using a pixel size of 2.0". This achieves an 80,000-fold improvement in sensitivity relative to earlier surveys. 2MASS used two new, highly-automated 1.3-m telescopes, one at Mt. Hopkins, AZ, and one at CTIO, Chile. Each telescope is equipped with a three-channel camera, each channel consisting of a 256 by 256 array of HgCdTe detectors, capable of observing the sky simultaneously at J (1.25 microns), H (1.65 microns), and K<sub>s</sub> (2.17 microns). <p>2MASS images and other data products can be obtained at the <a href="https://irsa.ipac.caltech.edu/applications/2MASS/QL/">NASA/IPAC Infrared Science Archive</a> Provenance: The Two Micron All Sky Survey is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center, funded by the National Aeronautics and Space Administration and the National Science Foundation.. 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 Two Micron All Sky Survey is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center, funded by the National Aeronautics and Space Administration and the National Science Foundation. Contributor: Skyview Project

Contact Information:

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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: 2025 Mar 07

This resource was registered on: 2025 Mar 07 00:00:00Z
This resource description was last updated on: 2025 Mar 07 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: HEASARC ivo://nasa.heasarc [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: Infrared

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=2mass&

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: Interactive web page: https://skyview.gsfc.nasa.gov/cgi-bin/query.pl

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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