Many of the datasets served by IRSA consist of diverse and complex collections of images, source tables, spectra, or light curves, often covering a particular region of the sky. Atlas is a single CGI program which can be used to search any such data collection in a general and uniform manner. Below are the data collections currently available through Atlas. Click on the name of the collection to get to the front page, which contains further information and a search form. Instructions are provided on each collection front page.

• Great Observatories Origins Deep Survey (GOODS)
  This project aims to unite extremely deep observations from NASA's Great Observatories (Spitzer, Hubble and Chandra), ESA's XMM-Newton, and from the most powerful ground-based facilities. The aim is to survey the distant universe to the faintest flux limits across the broadest range of wavelengths.

• 2MASS 6X Lockman Hole (LH)
  These data represent a preliminary analysis of the deep 2MASS observations of the Lockman Hole region, and are not a product endorsed by the 2MASS project. The data are comprised of 2415 images, accompanied with the paper "A Deep 2MASS survey of the Lockman Hole", by Beichman et al.

• IRAS Galaxy Atlas (IGA)
  A high resolution image atlas of the Galactic plane at 60 and 100 microns has been produced using the Infrared Astronomical Satellite (IRAS) data. The HIRES program was developed by the Infrared Processing and Analysis Center (IPAC) to produce high resolution (~ 1 arcmin) images from IRAS data using the Maximum Correlation Method (H.H. Aumann, J.W. Fowler and M. Melnyk, 1990, Astronomical Journal, 99, 1674). Retrieve IRAS point sources and multiple IGA images covering a large area.

• Extended IRAS Galaxy Atlas (EIGA)
  An extension of the original IRAS Galaxy Atlas (IGA) to b = 6.7°. High resolution images at 60 µm and 100 µm have been produced to match the latitude coverage of radio continuum observations obtained as part of the Canadian Galactic Plane Survey (CGPS).

• Mid-Infrared Galaxy Atlas (MIGA)
  A high resolution image atlas of the Galactic plane at 12 µm and 25 µm, produced using the HIRES processed infrared data from the Infrared Astronomical Satellite (IRAS). It is a counterpart to the far-infrared IRAS Galaxy Atlas (IGA) and the Extended IRAS Galaxy Atlas (EIGA).

• IRAS Sky Survey Atlas (ISSA)
  A survey of 98% of the sky in four bands with effective wavelengths of 12, 25, 60 and 100 µm, which was done during a ten month period from January to November, 1983, using the Infrared Astronomical Satellite (IRAS). Retrieve multiple FITS images from ISSA, covering a large area.

• 2MASS Large Galaxy Atlas (LGA)
  The high sensitivity and angular resolution of LGA images allows closer inspection of diverse stellar populations, star formation regions, evolution of galaxies, and the large-scale structures within galaxies (such as spirals, bulges, warps and bars). This image atlas represents the first uniform, all-sky view of galaxies as seen in the near-infrared wavelength window that is most sensitive to the dominant mass component of galaxies. Retrieve multiple FITS images covering a wide area of the sky from the 2MASS Large Galaxy Atlas.

• Spectra from the ISO Short Wavelength Spectrometer (SWS)
  Infrared Space Observatory (ISO) Spectra from the Short Wavelength Spectrometer (SWS). Atlas serves a uniform catalog of SWS spectra derived from valid, full-scan, 2.4-45.4 micron spectra available in the ISO archive. These spectra are accompanied by the paper by Sloan et al. (2003).

• NASA/IPAC Extragalactic Database Image Data Atlas (NED)
  The NASA/IPAC Extragalactic Database (NED) is built around a master list of extragalactic objects for which cross identifications of object names and positions are established using data published in journal articles and survey catalogs covering all wavelengths. NED's image archive focuses on unique FITS images acquired from authors of journal articles, but also includes cut-outs from very large sky surveys such as 2MASS and the Digitized Sky Survey.

• Midcourse Space Experiment (MSX)
  Ten months of the Ballistic Missile Defense Organization satellite mission were devoted to mid-infrared observations with a solid hydrogen-cooled telescope. This instrument had five line-scanned focal plane arrays that spanned the spectral region from 4.2 to 26 µm. In the Galactic plane, some areas are available both as standard mosaics and from higher sensitivity images. Images of galaxies, star-forming regions out of the Galactic plane, and Infrared Astronomical Satellite (IRAS) Gap regions are also available.

• Spitzer First Look Survey (FLS) -- Ancillary VLA Data (FLS_VLA)
  The Spitzer First Look Survey has obtained VLA radio data. Available to the public is a catalog of radio sources along with a mosaic of 35 VLA pointings taken during 2001 and 2002, representing 240 hours in B-array at 1.4 GHz.

• Spitzer First Look Survey (FLS) -- NOAO Extragalactic -- R (FLS_MAIN_R)
  The Spitzer First Look Survey has obtained approximately 30 pointings with the NOAO MOSAIC camera on the Kitt Peak 4m telescope covering the entire extragalactic First Look Survey region in the R-band. Available to the public are image FITS files, bad pixel maps, exposure maps and source catalogs of each pointing.

• Spitzer First Look Survey (FLS) -- NOAO ELAIS N1 -- R (FLS_ELAISN1_R)
  The Spitzer First Look Survey has obtained several pointings with the NOAO MOSAIC camera on the Kitt Peak 4m telescope covering the ELAIS N1 region in the R-band. This region is also part of the SWIRE project. Available to the public are image FITS files, bad pixel maps, exposure maps and source catalogs of each pointing.

• Infrared Telescope in Space (IRTS)
  IRTS is a cryogenically cooled, small infrared telescope that flew from March - April in 1995. It surveyed approximately 10% of the sky with a relatively wide beam during its 20 day mission. Four onboard instruments - 2 spectrometers and 2 cameras - made simultaneous observations of the sky at wavelengths ranging from 1 to 1000 um.

• 2MASS Mosaics of MAST Scrapbook Sources (Scrapbook)
  The Multimission Archive at Space Telescope (MAST) Spectral/Image Scrapbook is designed to allow users to take a quick look at sample data in the MAST archive of a particular astronomical object of interest. It is set up here as an interoperability project between IRSA and MAST.

• Spitzer Wide-area InfraRed Extragalactic Survey (SWIRE)
  The Fall 2005 (Data Release 3) of the Spitzer Data from the "Spitzer Wide-area InfraRed Extragalactic Survey" (SWIRE) Legacy Project, are available here using spatial and visualization tools. IRSA is serving the SWIRE Enhanced Products data from the Spitzer Science Center (SSC) public data staging location.

• Cosmic Evolution Survey with HST (COSMOS)
  Cosmic Evolution Survey with HST (COSMOS) is an HST Treasury Project to survey a 2 square degree equatorial field with the ACS camera. VLA, HST-ACS, HST-WFPC and XMM data for this field are now available to the public.


• Cosmic Evolution Survey - Spitzer Legacy (S-COSMOS)
  S-COSMOS is a deep infrared imaging surgey carried out with the Spitzer Space Telescope. The survey covers the entire 2 square degrees of the Cosmic Evolution Survey (COSMOS) field.
• C2D Spitzer and Ancillary Data (C2D)
  First Delivery of the Spitzer Data from the "From Molecular Cores to Planet-Forming Disks" (c2d) Legacy Project, are available here using spatial and visualization tools. IRSA is serving the data from the SSC public data staging area, from the c2d Enhanced Products SSC staging location.

• FEPS Spitzer and Ancillary Data (FEPS)
  The third Delivery of the Spitzer Data from "The Formation and Evolution of Planetary Systems: Placing Our Solar System in Contex" (feps) Legacy Project, are available here using spatial and visualization tools. IRSA is serving the data from the SSC public data staging area, from the feps Enhanced Products SSC staging location.

• GLIMPSE Spitzer and Ancillary Data (GLIMPSE)
  Multiple deliveries of the Spitzer Data from the "Galactic Legacy Infrared Midplane Survey Extraordinaire" (GLIMPSE) Legacy Project, are available here using spatial and visualization tools. These datasets are part of the Enhanced Products data from the Spitzer Science Center (SSC).

• Improved Reprocessing of the IRAS Survey (IRIS)
  IRIS is a new generation of Infrared Astronomical Satellite (IRAS) images, which benefits from better zodiacal light subtraction and destriping. Reprocessed FITS files from all 4 original IRAS HCONs are served, as well as the co-added image maps (HCON 0).

• SINGS Spitzer and Ancillary Data (SINGS)
  The Fourth Delivery (DR4) of the Spitzer Data from "The Spitzer Infrared Nearby Galaxies Survey - Physics of the Star-Forming ISM and Galaxy Evolution" (SINGS) Legacy Project, are available here using spatial and visualization tools. IRSA is serving the data from the SSC public data staging area, from the sings Enhanced Products SSC staging location.

• Spitzer First Look Survey (FLS) -- Ancillary MMT/Hectospec Spectral Data (FLS_HECTOSPEC)
  The second delivery (v2) of the spectroscopic survey using the MMT/Hectospec fiber spectrograph of 24 µm sources selected with the Spitzer Space Telescope in the Spitzer First Look Survey (FLS). Released are 1296 new redshifts for 24 µm sources, including 599 with f_v(24µm) >= 1 mJy. These data are combined with 291 additional redshifts for sources from the Sloan Digital Sky Survey (SDSS). The Hectospec survey includes 1078 and 168 objects spectroscopically classified as galaxies and QSOs, respectively. Redshift catalogs and spectra are available through Atlas for position search queries; advanced search queries on catalog columns are available using Gator (within the Spitzer catalog section).

• NASA Exoplanet Science Institute - PTI & KI Public Data (NExScI_PTI_KI)
  NASA Exoplanet Science Institute (NExScI) has made available a database of observations from the Palomar Testbed Interferometer (PTI), covering over 700 nights and over 1000 targets, as well as the first set of Keck Interferometer (KI) visibility mode data, containing over 45 science targets. These data can be accessed using spatial search queries.

• A 24 and 70 Micron Survey of the Inner Galactic Disk with MIPS (MIPSGAL)
  A survey of the inner 278 square degrees of the Galactic plane at 24 and 70 microns using the MIPS instrument aboard the Spitzer Space Telescope. The coverage includes Galactic latitudes from -1 to 1 degrees and spans Galactic longitudes from 62 to 298 degrees.

• Surveying the Agents of a Galaxy's Evolution (SAGE)
  Image data from the SAGE Legacy II Project: MIPS images mosaics and tiles, along with time stamp image mosaics are available.

• Far-Infrared Deep Extragalactic Legacy Survey (FIDEL)
  FIDEL (Spitzer Legacy II Project) contains sensitive and extensive far-infrared deep field observations with Spitzer to detect warm dust emission from hundreds of relatively ordinary starburst galaxies and active galactic nuclei at redshifts of 1 to 2 (7 to 10 billion years ago), and thousands more nearby. The survey also detects tens of thousands of high redshift objects at mid-infrared wavelengths. The program is obtaining data in three fields on the sky. The bulk of the data is being taken in two fields, the Extended Chandra Deep Field South (ECDFS) and the Extended Groth Strip (EGS). A smaller amount of additional data is being obtained in the GOODS-North area.

• Taurus 2: Finishing the Spitzer Map of the Taurus Molecular Clouds (Taurus)
  Image data from the Taurus Legacy III Project: IRAS and MIPS images mosaics, along a source catalog.

• Great Observatory All-sky LIRG Survey (GOALS)
  Image and spectra data from the GOALS Legacy III Project: IRAS and MIPS images, spectra and spatial profiles for 50 GOALS galaxies.