• Catalog Search

• Basic
  • BabyGator provides easy access to IRSA's most popular catalogs.
• General
  • Gator supports general queries of all source catalogs curated at IRSA.

• Image Services

• Finder Charts
  • FinderChart is a visualization tool to cross-compare 2MASS, DSS and SDSS image data sets. It displays a finder chart showing the same region of the sky at various wavelengths and epochs, and supports user interaction with the images.
• 2MASS Images
  • The 2MASS Image Services support access to the 2MASS Atlas (Full Resolution) and Quicklook images.
• 2MASS Ext. Srcs.
  • The 2MASS Extended Source Image Server returns composite "postage stamp" images of extended sources, and basic extended source catalog information.
• Mosaics
  • On-request mosaics of 2MASS, SDSS, and DSS.
• Cutouts
  • Returns small "cutouts" of a user-specified size of image data sets archived at IRSA. Returns FITS and JPEG formats.

• Inventories

• IRSA Holdings
  • RADAR is an inventory and data exploration service that generates an inventory of IRSA's science data products and supports one-click retrieval of data.
• NVO Sky Coverage
  • The NVO Sky Statistics Service generates source counts, coverage maps, and links to downloadable data for catalog holdings at IRSA, NED and VizieR.

• Tools

• OASIS Visualizer
  • OASIS supports visualization of and interaction with data from astronomical archives, including IRSA, NED, CDS, STScI, LLNL, NRAO, AAVSO, HEASARC, and JPL.
• Montage
  • Montage is a toolkit for assembling FITS images into custom mosaics.
• Image Validation
  • The Image Validation service checks the syntax of a FITS file and that its WCS keywords are complete. 2MASS sources are overlayed on the image as a simple astrometric check.
• Object Lookup
  • Coordinate and Object Lookup uses NED and SIMBAD to retrieve coordinates for astronomical objects by name, and supports coordinate transformations.
• QA Tools
  • Quality Assurance Tools for IRSA data providers.
• Dust Extinction
  • The Dust Extinction Service uses the maps of Schlegel et al. to return the 100 µm intensity integrated along a line of sight through the Galaxy, and corresponding estimates of the Galactic dust extinction and dust temperatures. The service also returns maps of the reddening and elementary region statistics.
• Data Tags
  • Returns data encoded in a published Data Tag, which link science publications with archives.

• Data Sets

• 2MASS

  • The Two Micron All Sky Survey

  • Overview & Documentation
  • Catalogs (all releases, using Gator)
  • All-Sky Data Release

    • Catalogs

    • Point Source Catalog (PSC)
    • Extended Source Catalog (XSC)
    • Large Galaxy Atlas (LGA)
    • Scan Info
    • Atlas Image Footprints

    • Images

    • FinderChart
    • 2MASS Image Services
    • Large Galaxy Atlas (with photometry)
    • Large Galaxy Atlas (images only, using Atlas)
    • Extended Source 3-Color Cutouts

    • Other

    • Statistics Service for the Point Source Catalog
  • Extended Mission Release

    • All-Sky Data

    • Catalogs

      • Catalogs

      • Point Source Rejects
      • Merged Point Source Info
      • Merged Point Source Links
      • Extended Source Rejects
      • Merged Extended Source Info
      • Merged Extended Source Links
      • Survey Scan Info
      • Survey Atlas Image Info
    • Full Survey (multi-epoch) Images

    • Long Exposure (6x) w/LMC/SMC Scans

    • Catalogs

      • Catalogs

      • Point Source Working Database
      • Merged Point Source Info
      • Merged Point Source Links
      • Extended Source Working Database
      • Merged Extended Source Info
      • Merged Extended Source Links
      • 6x Scan Info
      • 6x Atlas Image Info
    • Catalog & Full (multi-epoch) Images

    • Calibration Scans

    • Catalogs

      • Catalogs

      • Point Source Working Database
      • Merged Point Source Info
      • Merged Point Source Links
      • Extended Source Working Database
      • Merged Extended Source Info
      • Merged Extended Source Links
      • Calibration Scan Info
      • Calibration Atlas Image Info
    • Individual (multi-epoch) Images

    • Combined Calibration Scans

    • Combined Cal Field Source Table
    • Combined Cal Scan Images
  • 1^st & 2^nd Incremental, Sampler Data Releases

    • Second Incremental Data Release (IDR2)

    • Point Source Catalog (PSC)
    • Extended Source Catalog (XSC)
    • Scan Info Catalog

    • First Incremental Data Release (IDR1)

    • Point Source Catalog (PSC)
    • Extended Source Catalog (XSC)
    • Scan Info Catalog

    • Sampler Data Release

    • Point Source Catalog (PSC)
    • Extended Source Catalog (XSC)
  • 6x Lockman Hole Images/Catalog
  • Mosaics of the MAST Scrapbook Sources
• COSMOS

  • Cosmic Evolution Survey

  • Overview & Documentation
  • Public Data

    • All Data Types (including small catalogs)

    • Spatial Search
    • Images Directory Listing
    • Small Catalogs Directory Listing

    • Advanced Catalog Search (selected catalogs)

    • COSMOS Photometry Catalog June 2007
    • COSMOS ACS I-band Photometry Catalog Sep 2007
    • S-COSMOS IRAC 4-channel Photometry Catalog June 2007
    • S-COSMOS MIPS 24um MAIN Photometry Catalog June 2007
    • S-COSMOS MIPS 24um DEEP Photometry Catalog June 2007
    • S-COSMOS MIPS 70um Photometry Catalog June 2007
    • S-COSMOS MIPS 160um Photometry Catalog June 2007

    • Images

    • Cutouts Service
    • Images Directory Listing
  • Internal (restricted)

    • All Data Types (including small catalogs)

    • Spatial Search
    • Images Directory Listing
    • Small Catalogs Directory Listing
    • Spectra Directory Listing

    • Advanced Catalog Search (selected catalogs)

    • COSMOS Internal Catalogs

    • Images

    • Cutouts Service
    • Images Directory Listing

    • Spectra

    • Spectra Directory Listing
• IRAS

  • Infrared Astronomical Satellite

  • Overview & Documentation
  • Scan Processing and Integration (Scanpi)
  • Catalogs (using Gator)

    • Catalogs (using Gator)

    • Faint Source Catalog v2.0 (FSC)
    • Point Source Catalog v2.1 (PSC)
    • Cataloged Galaxies and Quasars
    • Serendipitous Survey Catalog
    • Small Scale Structure Catalog
    • Additional Observations Catalog (AO)
    • Faint Source Catalog Rejects
    • Point Source Catalog Rejects
    • PSC joined with Working Survey Database (WSDB)
    • PSC joined with Hours-confirming (HCON) & WSDB
    • 1.2-Jy Redshift Survey
    • Asteroid & Comet Survey
    • Minor Planet Survey
    • Large Galaxies Catalog
  • Images

    • IRAS Sky Survey Atlas

    • ISSA Images and Catalog Overlays
    • ISSA Spatial Search and Image Inventory
    • ISSA Cutouts

    • Improved Reprocessing of the IRAS Survey

    • IRIS Spatial Search and Image Inventory
    • IRIS Cutouts

    • IRAS Galaxy Atlas

    • IGA Images and Catalog Overlays
    • IGA Spatial Search and Image Inventory
    • IGA Cutouts

    • Extended IRAS Galaxy Atlas

    • EIGA Spatial Search and Image Inventory
    • EIGA Cutouts

    • Mid-Infrared Galaxy Atlas

    • MIGA Spatial Search and Image Inventory
    • MIGA Cutouts
• IRTS

  • Infrared Telescope in Space

  • Overview & Documentation
  • Catalog, Images, and Spectra
• ISO

  • Infrared Space Observatory

  • Overview & Documentation
  • Visualization Service
  • Spectra from the Short Wavelength Spectrometer (SWS)
• MSX

  • Midcourse Space Experiment

  • Overview & Documentation
  • Image Service with Catalog Overlays
  • Spatial Search and Image Inventory
  • General Catalog Queries
• NED Images

  • NASA/IPAC Extragalactic Database

  • Spatial Search of NED Images
• SDSS Images

  • Sloan Digital Sky Survey (SDSS)

  • Overview & Documentation
  • FinderChart
  • Image Mosaics
• Spitzer

  • Spitzer Space Telescope

  • Overview & Documentation
  • Spitzer Post-BCD Products
  • General Catalog Queries
  • Basic Catalog Queries
  • Image Cutouts
  • Legacy Programs: Galactic Data Sets

    • Spitzer Legacy Programs: Galactic Data Sets

    • C2D
    • FEPS
    • GLIMPSE
    • MIPSGAL
    • MIPSGAL Team Access (password protected)
    • SASS
    • Taurus
  • Legacy Programs: Extragalactic Data Sets

    • Spitzer Legacy Programs: Extragalactic Data Sets

    • FIDEL
    • GOALS
    • GOODS
    • LVL
    • SAGE
    • SDWFS
    • SINGS
    • SWIRE
    • S-COSMOS
  • First Look Survey (FLS)

    • Spitzer First Look Survey (FLS)

    • VLA Ancillary Data
    • IRAC/MIPS Image Cutouts
    • NOAO Extragalactic R-band
    • NOAO ELAIS-N1 R-band
    • Ancillary MMT/Hectospec Spectra
  • Contributed Data Sets

    • Contributed Data Sets

    • ELFLock Map
    • Lockman Hole 2MASS 6x Ancillary Data
• SWAS

  • Submillimeter Wave Astronomy Satellite

  • Overview & Documentation
  • Spectrum Server
• USNO-B

  • USNO-B

  • Overview & Documentation
  • USNO-B1 Catalog
• DENIS

  • DENIS

  • Overview & Documentation
  • DENIS Catalog - 3rd Release
• NExScI

  • NASA Exoplanet Science Institute

  • Overview & Documentation
  • Spatial Searches and Inventories of PTI & KI Metadata
• BOLOCAM

  • BOLOCAM

  • Overview & Documentation
  • Galactic Plane Survey Catalog
  • Galactic Plane Survey Images
  • Lockman Hole Images
• BLAST

  • BLAST

  • Overview & Documentation
  • BLAST Images

2MASS All-Sky Point Source Catalog Statistics Service

This tool can be used to estimate the number of 2MASS sources that lie within a given radius of a given sky location, prior to submitting an actual query for such sources using Gator. It provides magnitude and color distribution tables and plots for the selected sources.

	Single Object Search
	Coordinates or Object Name
	Multiple Object Search
	Upload Table
	Radius (degrees, 0 < R < 90)

Examples:
289.3848 11.9674 eq   |   19h17m32s 11d58m02s Equ J2000   |   46.5377 -0.2518 ga   |   M 31
Default:   Equatorial J2000

Help/Instructions

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