IRSA News Archive

IRSA sends out 2-4 newsletters per year to inform users about new data releases and services.


September 26, 2017: AKARI Far-infrared All-Sky Survey Maps

Far-infrared All-Sky Survey Maps from JAXA's AKARI mission are now additionally available at IRSA. These maps cover the entire sky in the N60, WIDE-S, WIDE-L, and N160 bands (65, 90, 140, 160 microns). (Image)

September 12, 2017: Herschel Data releases

New releases from Herschel are now available. Herschel data from the Herschel Gould Belt Survey, PACS Highly Processed Data Products, and SAG-4 programs have been released. (Image)

July 18, 2017: Herschel, Gaia, and UCAC5 Data releases

New releases from Herschel, Gaia, and USNO are now available. Herschel data from the PRISMAS, Hi-GAL, SBNAF, H-ATLAS, and HeVICS programs have been released, as well as Gaia ancillary tables and the USNO UCAC5 catalog. (Image)

June 1, 2017: NEOWISE Reactivation 2017 Data Release

The NEOWISE Reactivation 2017 Release adds approximately 2.6 million image sets and 19.6 billion source detections to the public archive. These data were acquired during the third year of the NEOWISE Reactivation Mission. (Image)

May 10, 2017: PPSC, HerMES, & AKARI Data Releases

The Herschel PACS Point Source Catalog (PPSC) contains the result of homogeneous source extraction from all the Herschel PACS scan map observations. (Image)

The Herschel Multi-tiered Extragalactic Survey (HerMES) DR4 has released PACS maps, improved SPIRE maps, and three new catalogs. (Image)

The AKARI Asteroid Flux Catalog contains photometric data of 5201 asteroids observed with the infrared astronomical satellite AKARI. (Image)

March 22, 2017: GOALS & GOT_Cplus Data Releases

The Great Observatories All-sky LIRG Survey (GOALS) has released Herschel PACS and SPIRE imaging of 200 nearby luminous infrared galaxies. (Image)

The Galactic Observations of Terahertz C+ (GOT_Cplus) program has added two position-velocity maps of the Galactic center. (Image)

February 28, 2017: Planck PR2c Data Release

The IRSA Planck archive made several additions to its PR2 data products, which include new catalogs and foreground maps. (Image)

February 7, 2017: Herschel SPIRE Point Source Catalog

The SPSC contains the result of a systematic and homogeneous source extraction on the 6878 standard configuration SPIRE scan maps. Only regions affected by strong Galactic emission, mostly in the Galactic Plane, were excluded. (Image)

December 12, 2016: Herschel High Level Images, Herschel HIFI Spectral Maps HPDP, and Herschel KINGFISH Spectra Data Releases

The Herschel High Level Images (HHLI) represent PACS and SPIRE image products that have been processed to the highest level available through the Standard Product Generation (SPG) pipeline, version 14.0. They are provided as a convenient way for users to quickly visualize PACS and SPIRE imaging for any given region on the sky observed by these two instruments. (Image)

Highly Processed Data Products (HPDP) have been produced by HIFI instrument scientists using the Herschel Interactive Processing Environment (HIPE), and can be regarded as being as close to science-ready as possible. DR1 consists of Band 6 and 7 maps. (Image)

The Herschel KINGFISH DR3 PACS spectra covering five lines ([OI], [OIII], [NII]122, [CII], and [NII]205) in 54 galaxy have now been released. (Image)

December 1, 2016: PTF DR3 Update

The PTF Third Data Release has been updated with tables containing: 1) sources extracted from a subset of epochal images acquired from Mar 1, 2009 to Jan 28, 2015; 2) sources extracted from a subset of the co-add (reference) images, principally those determined to be of high quality; and 3) photometrically calibrated lightcurves that link the extractions across multiple epochs. (Image)

November 15, 2016: GOODS IRS 16 micron & PEP GOODS-S 70 micron Data Releases

Spitzer IRS 16 micron imaging and catalogs of the GOODS-N and GOODS-S fields are now available. (Image)

The PEP GOODS-S 70 micron catalog is now available. (Image)

September 26, 2016: Gaia First Data Release

The Gaia DR1 catalogue of more than 1 billion stars is now available through IRSA's Catalog Search tool.

September 26, 2016: VNGS & HIFISTARS Data Releases

Very Nearby Galaxy Survey (VNGS) PACS and SPIRE spectra are now available.

Spectra from HIFISTARS: "The physical and chemical properties of circumstellar environments around evolved stars" are now available.

September 1, 2016: PTF Third Data Release

The PTF Third Data Release adds to DR1 and DR2 by including selected g- and R-band data obtained from January 1, 2013 through January 28, 2015. This represents the first 25 months of the intermediate PTF (iPTF) phase, defined primarily by a change in partnership and science goals. Like PTF, the iPTF survey does not use a uniform coverage observation strategy and so there exist significant gaps in sky coverage. Also, there is less coverage at g-band than R-band.

August 30, 2016: M31IRAC, GLIMPSE, & HEXOS Data Releases

The IRAC Observations of the Extended Disk and Halo of M31 covers the major and minor axes of M31 with total lengths of 6.6 and 4.4 degrees, respectively. The M31 IRAC Catalog includes 426,529 sources.

GLIMPSE has released images and catalogs for the Cygnus-X Legacy Program field.

Herschel observations of EXtra-Ordinary Sources (HEXOS) has released HIFI spectra of five sources in the Orion and Sagittarius B2 molecular clouds.

July 19, 2016: SpIES, HOPS, & Herschel Data Search Releases

The Spitzer IRAC Equatorial Survey is a large-area survey of 115 sq. degrees in the Equatorial SDSS Stripe 82 field.

The Herschel Orion Protostar Survey is a sample of 410 young stellar objects in the Orion molecular clouds, selected from Spitzer data. HOPS data include Herschel PACS imaging along with Spitzer IRAC, MIPS, and IRS observations.

The Herschel Data Search tool at IRSA now provides access to Herschel data processed with pipeline version SPG v 14.0.1.

April 26, 2016: HerMES Data Release

The Herschel Multi-tiered Extragalactic Survey mapped fields ranging in size from 0.01 to 20 sq. deg. using SPIRE at 250, 350, and 500 microns.

March 23, 2016: NEOWISE Reactivation 2016 Data Release

The NEOWISE Reactivation 2016 Release adds approximately 2.56 million image sets and 19.7 billion source detections to the public archive. These data were acquired during the second year of the NEOWISE Reactivation Mission.

March 15, 2016: SHELA, GLIMPSE SMOG, & URAT1 Data Releases

The Spitzer/HETDEX Exploratory Large-Area (SHELA) survey covers ~24 sq. deg at 3.6 and 4.5 microns. The survey area falls within the footprints of the Sloan Digital Sky Survey 'Stripe 82' region, the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX), and the Dark Energy Survey.

GLIMPSE has released images and catalogs for the 'Spitzer Mapping of the Outer Galaxy' (SMOG) Legacy Program field.

The First USNO Robotic Astrometric Telescope Catalog (URAT1) has been released. URAT1 contains 228 million sources with high quality astrometry.

February 23, 2016: Frontier Fields, SAFIRES, SEP, & IRS_Std Data Releases

Frontier Fields DR2: DDT observations and public archival data for the six Frontier Fields. DR2 features improved reductions with better artifact correction and deeper data.

New IRAC catalog in the South Ecliptic Pole field from the Spitzer IRAC/MIPS Extragalactic Survey.

Spitzer Archival FIR Extragalactic Survey (SAFIRES) includes MIPS 70 and 160 micron images and source catalogs of 1132 fields covering almost 180 square degrees.

IRS Standard Star spectra of M giants are now available.

December 17, 2015: Planck, MIPSGAL, & Deep GLIMPSE Data Releases

Planck PR2 updates: HFI Polarization TOI data are now available, the PR2 catalogs have been linked to the visualization tool and the catalog search interface, the PSZ1 catalog has been updated to v2.1, and the HIRES software has been released.

MIPSGAL has released point source subtracted 24 micron images.

Deep GLIMPSE images covering the l=265-300 region of the Galaxy have been released.

October 20, 2015: WISE/NEOWISE Coadder Update

IRSA's WISE/NEOWISE Coadder has been updated to include data from the NEOWISE Reactivation 2015 data release. Create custom mosaics from single exposures drawn from any of the publicly released data.

October 20, 2015: YSOVAR, Deep GLIMPSE, & Bolocam GPS Data Releases

The Young Stellar Object Variability (YSOVAR) program has released light curves and catalogs for four clusters: NGC 1333, GGD 12-15, L1688, and IRAS 20050+2720.

Deep GLIMPSE images covering the l=300-350.3 region of the Galaxy have been released.

The Bolocam Galactic Plane Survey has released updated versions of the SHARC-II 350 micron maps, with improved calibration.

September 2, 2015: Planck Public Data Release 2 Update

The Planck Public Data Release 2 Update includes HFI polarization maps, time ordered data samples for variability analysis, cosmological likelihoods and source catalogs. See documentation for details of all updated data products.

August 7, 2015: PTF Second Data Release

The PTF Second Data Release includes all g- and R-band data obtained through the end of December, 2012. Unlike the first data release (DR1), there will be no spatial restrictions placed on the data and the release scope will encompass the entire northern sky. However, PTF does not use a uniform coverage observation strategy and so there exist significant gaps in coverage on the sky. In particular, in DR2 there is little coverage of the galactic plane, and there is less coverage at g-band than R-band.

July 29, 2015: S-CANDELS, HELGA, HerM33es, HERITAGE, ColdCores, MESS, & GOT_Cplus Releases

Extragalactic data releases:

  • S-CANDELS (left) Spitzer 3.6 and 4.5 micron images of five extragalactic survey fields.
  • HELGA Herschel PACS and SPIRE images of M31.
  • HerM33es Herschel PACS and SPIRE images of M33.
  • HERITAGE band-matched Herschel catalogs.

Galactic data releases:

  • ColdCores (left) Herschel PACS and SPIRE images of fields containing Planck cold dust detections.
  • MESS Herschel PACS images of 108 evolved stars.
  • GOT_Cplus Herschel HIFI spectra of the 158 micron CII line in the Galactic plane.

May 26, 2015: IUDF and SAGE-Var Releases

The IRAC Ultra-Deep Field combines all ultradeep data taken with Spitzer at 3.6 and 4.5 microns over the GOODS-S and HUDF field.

The SAGE-Var catalogs probe the variability of infrared sources in the LMC (SAGE) and SMC (SAGE-SMC) fields over six epochs of observations.

April 29, 2015: 2MASS Six Degree Mosaic, Deep GLIMPSE, and TAP Releases

For users wishing to visualize regions of the sky that are significantly larger than the Atlas Images, or that fall close to the edge of an Atlas Image, the NASA/IPAC Infrared Science Archive (IRSA) has created 6 x 6 degree 2MASS mosaics. The outline to the left shows the size of a 2MASS Atlas image for comparison.

Deep GLIMPSE

Deep GLIMPSE images covering the l=24.6-65.3d region of the Galaxy have been released.

IRSA now supports a beta version of the Virtual Observatory's (VO) Table Access Protocol (TAP). TAP allows a richer variety of search options than the VO Simple Cone Search program interface.

March 26, 2015: NEOWISE Reactivation 2015 Release

The NEOWISE Reactivation 2015 Data Release consists of approximately 2.5 million 3.4 and 4.6 micron images and a database of nearly 18.5 billion source detections extracted from those images. These data were acquired during the first year of the NEOWISE Reactivation Mission.

March 26, 2015: BOLOCAM_GPS, DUSTiNGS, and Disks_SH_spectra Releases

The BOLOCAM Galactic Plane Survey has released a distance catalog, distance probability density functions, and SHARC-II 350 micron maps.

The Dust in Nearby Galaxies with Spitzer (DUSTiNGS) program has released IRAC 3.6 and 4.5 micron images and catalogs of sources in 50 dwarf galaxies within 1.5 Mpc.

The Disks_SH_spectra program has released 54 Spitzer IRS high resolution spectra of stellar disks in different evolutionary stages.

February 6, 2015: Planck Public Release 2

Planck PR2 includes all-sky temperature and polarization maps, Time Ordered Information (TOI), foreground component maps and catalogs, and cosmology results from the full Planck mission. A GUI interface allows TOI search, download, map generation, and enhanced visualization. Also included is user contributed software which allows TOI map generation, solar system object searches, and FITS beam generation.

January 27, 2015: GLIMPSE and MIR_SFR Releases

GLIMPSE360 images and DeepGLIMPSE Catalogs have been released. All GLIMPSE360 data are now available. The first DeepGLIMPSE delivery consists of a high quality Catalog and a more complete Archive.

Mid-Infrared Star Formation templates have been derived from Spitzer IRS spectra. Coverage spans twelve filters from Spitzer, WISE, and JWST.

December 16, 2014: MIPSGAL, COSMOS, and CLASH Releases

Two MIPSGAL 24 micron catalogs have been released: a high quality Catalog and a more complete Archive. Both include 2MASS, IRAC (GLIMPSE) photometry as well. Completeness decay cubes that describe the varying background levels over the MIPSGAL field and the ability to extract sources of a given magnitude from this background are also available.

COSMOS images and catalogs have been released: the VLA 327MHz catalog, Subaru z++ images, Ultra-vista images, and KPNO NEWFIRM medium band images are now available on the public COSMOS page. SPLASH Spitzer images are now available on the COSMOS team internal page.

CLASH images and catalogs have been released, adding the CLJ1226 field to the existing CLASH data set.

December 10, 2014: Finder Chart Update

IRSA announces an update to Finder Chart, providing improved access to catalog data. Finder Chart is a tool for simultaneously exploring the imaging data from popular large-area surveys: 2MASS, WISE, IRAS, DSS, and SDSS. As with most IRSA tools, Finder Chart allows you to perform secondary catalog searches for overlaying and plotting. Finder Chart now also allows the most popular catalog from each data set to be searched. The results are overlaid on the images, and can easily be filtered or plotted.

November 20, 2014: Spitzer CSI2264, S4G, and IRS Standard Stars Data Releases

Light curves and catalogs from the Coordinated Synoptic Investigation of NGC 2264 (CSI 2264) Exploration Science program are now available.

New data from S4G: Maps of stellar and nonstellar emission and updated Galfit models have been released.

Spectra of IRS Standard Stars have been released.

September 16, 2014: GLIMPSE360 Data Release

New images from the GLIMPSE360 Exploration Science program. Coverage for l=240-265d is now available.

August 19, 2014: Herschel GOODS, DUNES, and VNGS Data Releases

New images and catalogs from the GOODS Herschel key program. PACS 100 and 160 micron images and SPIRE 250, 350, and 500 micron images are now available for the GOODS-N and GOODS-S fields.

New images and catalogs from the DUst around NEarby Stars (DUNES) Herschel key program. PACS and SPIRE images, SED plots (shown), and a catalog are now available.

New images and catalogs from the Very Nearby Galaxy Survey (VNGS) Herschel key program. PACS and SPIRE images are now available.

June 17, 2014: GLIMPSE360 and Vela-Carina Data Releases

New images and catalogs from the GLIMPSE360 and Vela-Carina Spitzer Exploration Science programs:

  • GLIMPSE360 images from l=174d-240d have now been released.
  • The Vela-Carina program has released images from l=255d-295d.
  • Source lists for the entire Vela-Carina area are now available.

May 28, 2014: IRSA's New Look

IRSA's new look offers a streamlined user experience to facilitate easy access to IRSA's many data sets, services, and tools. Everything at IRSA is still available! And it can all be accessed from the main menu at the top of each page.

New catalog exploration features:

  • One-to-one Matching
  • Advanced Plotting
  • Overlay onto images
  • Data Filtering

VO access to IRSA data:

Finder Chart v2 has been released and includes the following new features.

  • A program interface that allows users to submit queries via the command line.
  • The option to download images that have been reprojected so that north is up and east is to the left, and to a common pixel scale of 0.36 arcsec. This is useful for creating 3 color images.
  • The ability to retain the last-used image display stretch for subsequent queries.
  • The ability to read in ds9 region files for overlaying marks on the images.
  • The ability to create plots based on quantities derived from the columns of catalogs that have been uploaded from the user's disk, or retrieved by IRSA.

April 15, 2014: CLASH and HOP Data Releases
IRSA announces the release of the Cluster Lensing And Supernova survey with Hubble (CLASH) Spitzer data and the Herschel Oxygen Project (HOP) Herschel Open Time Key Program.

CLASH is an HST Multi-Cycle Treasury program to survey 25 massive galaxy clusters at 16 wavelengths spanning from the near-UV to the near-IR. A series of programs with Spitzer have covered all CLASH galaxy clusters with IRAC Channels 1 and 2 (3.6 and 4.5 micron). Several of the targets include Channels 3 and 4 (5.8 and 8 micron) data. Spitzer mosaics, catalogs, and PSF images are now available.

HOP used HIFI to probe a range of molecular cloud environments to detect molecular oxygen. The three strongest transitions in the range covered by HIFI from energy levels lower than 120 K above the ground state were selected (487.3 GHz, 773.8 GHz and 1120.7 GHz) for the following targets: Sgr A, Sgr B2(S), OMC-1(Peak 1), Orion Bar, rho Oph A, NGC 1333 IRAS 4A, NGC 6334I and AFGL 2591. Both single LOs and Spectral scans are available. This program also provides a spectral map of rhoOph.

March 18, 2014: PEP Data Release
IRSA announces the PACS Evolutionary Probe (PEP) data release.

PEP is a Herschel guaranteed time deep extragalactic survey targeting six among the most popular "blank fields", ten lensing clusters of galaxies, and two z ~1 clusters at wavelengths of 100 and 160 microns. PEP also includes SPIRE observations of the two z ~1 clusters at wavelengths of 250, 350, and 500 microns. PEP data products include image maps, source catalogs, residual maps, and PSFs.

February 18, 2014: KINGFISH and S4G Data Releases
IRSA announces the release of new data products from the KINGFISH and S4G programs.

The Key Insights on Nearby Galaxies: A Far-Infrared Survey with Herschel (KINGFISH) open time key program is an imaging and spectroscopic survey of 61 nearby (d<30 Mpc) galaxies, chosen to cover a wide range of galaxy properties and local interstellar medium (ISM) environments found in the nearby universe. Its broad goals are to characterize the ISM of present-day galaxies, the heating and cooling of their gaseous and dust components, and to better understand the physical processes linking star formation and the ISM. Herschel PACS and SPIRE images of the KINGFISH sample are now available.

The Spitzer Survey of Stellar Structure in Galaxies (S4G) exploration science program consists of a sample of 2,352 nearby galaxies, which have been mapped with IRAC channels 1 and 2 (3.6 and 4.5 microns). Galfit models are now available for all galaxies in S4G.

January 3, 2014: Spitzer Heritage Archive Update
A new version of the Spitzer Heritage Archive user interface is now available, featuring:
  • Access to new versions of the Spitzer Enhanced Imaging Products, and the ability to plot SEDs of objects in the Source List.
  • Improved ability to create XY plots of quantities derived from catalog columns.
  • Precovery of archival observations of moving objects.
December 19, 2013: SEIP, SSDF, and SINGS Data Releases
IRSA announces the release of new data products from the Spitzer Enhanced Imaging Products, SPT-Spitzer Deep Field, and Spitzer Infrared Nearby Galaxies Survey programs.

The Spitzer Enhanced Imaging Products include Super Mosaics (combining data from multiple programs where appropriate) and a Source List of photometry for compact sources. The primary requirement on the Source List is very high reliability -- with areal coverage, completeness, and limiting depth being secondary considerations. The SEIP include data from the four channels of IRAC (3.6, 4.5, 5.8, 8 microns) and the 24 micron channel of MIPS. The Source List includes 42 million sources. Coverage tables for IRAC and MIPS are also available, as is a Traceback table to identify which AORs were used in each Super Mosaic.

The Spitzer-South Pole Telescope Deep Field (SSDF) is a wide-area survey using IRAC to cover 94 square degrees of extragalactic sky, making it the largest IRAC survey completed to date outside the Milky Way midplane. The SSDF is centered at 23:30,-55:00, in a region that combines observations spanning a broad wavelength range from numerous facilities. These include millimeter imaging from the South Pole Telescope, far-infrared observations from Herschel/SPIRE, X-ray observations from the XMM XXL survey, near-infrared observations from the VISTA Hemisphere Survey, and radio-wavelength imaging from the Australia Telescope Compact Array, in a panchromatic project designed to address major outstanding questions surrounding galaxy clusters and the baryon budget.

Updated optical spectra are now available for galaxies in SINGS, including enhanced previews and visualizations of the different extraction apertures.

December 19, 2013: Planck DR1 December 2013 Update
IRSA and the U.S. Planck Data Center announce an update to the NASA Planck Archive. The following products are now available: 1. New maps for the cosmic microwave background from the SEVEM and Commander-Ruler component separation techniques; 2. An extensive set of simulations for foregrounds and the CMB; 3. Foreground masks which are used for the cosmological results discussed in the initial Planck project science papers. 4. Supplementary information on the SZ clusters from DR1; 5. An updated map of the Galactic dust emission. Complete information about the Planck DR1 December update is available.
November 13, 2013: AllWISE Data Release
The Wide-field Infrared Survey Explorer (WISE) and IRSA announce the AllWISE Data Release.

The AllWISE program combines data from WISE cryogenic and NEOWISE post-cryogenic survey phases, to form the most comprehensive view of the mid-infrared sky currently available. By combining the data from two complete sky coverage epochs in an advanced data processing system, AllWISE has generated new products that have enhanced photometric sensitivity and accuracy, and improved astrometric precision compared with the earlier WISE All-Sky Data Release. Exploiting the 6 month baseline between the WISE sky coverage epochs enables AllWISE to measure source motions for the first time, and to compute improved flux variability statistics.

AllWISE data release products include: a Source Catalog that contains 4-band fluxes, positions, apparent motion measurements, and flux variability statistics for over 747 million objects detected at SNR>5 in the combined exposures; a Multiepoch Photometry Database containing over 42 billion time-tagged, single-exposure fluxes for each object detected on the combined exposures; and an Image Atlas of 18,240 4-band calibrated FITS images, depth-of-coverage and noise maps that cover the sky produced by coadding nearly 7.9 million single-exposure images from the cryogenic and post-cryogenic survey phases.

A quick guide to the AllWISE data release, data access instructions and supporting documentation is available. A summary of the WISE mission resources is available on the WISE mission page.

October 15, 2013: Herschel HERITAGE Data Release
IRSA announces the release of image and catalog data from the HERITAGE Herschel Open Time Key Program. The HERschel Inventory of The Agents of Galaxy Evolution (HERITAGE) Open Time Key Program mapped the Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC) at 100, 160, 250, 350, and 500 microns using the PACS and SPIRE instruments on ESA's Herschel Space Observatory. The overriding science goal of HERITAGE is to study the life cycle of matter as traced by dust in the LMC and SMC. There are two main pointings, one for the LMC and the other for the SMC. For each of these, the PACS and SPIRE pointings are slightly offset. Images and uncertainty maps in MJy/sr are available for all the bands. Coverage maps (in frames per pixel) are available for the SPIRE bands.
September 18, 2013: New Software Tool
IRSA has released a new version of its Dust Extinction Service. This service gives the Galactic dust reddening for a line of sight, returning a reddening map, the corresponding 100 micron intensity, and the dust temperature, along with statistics for each. In Single Location mode, extinctions at multiple wavelengths are estimated. Improvements over the previous version include newer reddening values from Schlafly & Finkbeiner (2011) in addition to those of Schlegel et al. (1998); and the addition of the Spitzer IRAC filters and the two shorter wavelength WISE bands.
August 22, 2013: New Software Tool
IRSA announces a recent update to its Herschel Data Search tool. This is a web interface that allows users to find data in the Herschel Science Archive maintained by ESA at the European Space Astronomy Centre (ESAC). Besides the standard positional queries per Instrument, the user will be able to search the archive selecting Observing Modes, Proposer and Proposal ID. The tool now supports "All Sky" and multiple-position searches as well.
August 22, 2013: Herschel Auriga-California Molecular Cloud & GLIMPSE360 Releases
IRSA announces the release of new images and a catalog from the Auriga-California Molecular Cloud Herschel program and new catalogs from the GLIMPSE360 Spitzer Exploration Science Program.

The Auriga-California Molecular Cloud program observed a 14.5 square degree area of the cloud in five far-infrared bands with ESA's Herschel Space Observatory. The data data include PACS (70 and 160 micron) and SPIRE (250, 350, and 500 micron) imaging for the East, Center, and West regions of the cloud, along with a source catalog.

The final release of GLIMPSE360 catalogs now covers the full area of the program, l=65-265 degrees, excluding l=102-109 and l=76-82 degrees.

July 8, 2013: New Software Tools
IRSA announces the release of three new software tools: HIRES, Table Validator, and the IRSA Viewer.

HIRES is a web-based tool that allows users to produce higher spatial resolution images from archival data of the Infrared Astronomical Satellite (IRAS). HIRES can be a useful tool for studying morphology and for separating confused sources. It can produce spatial resolutions of better than an arcminute, roughly a five-fold increase over the unenhanced resolution.

Table Validator is a web-based tool that 1) checks whether an uploaded table is in IPAC Table Format, 2) checks whether it satisfies some additional restrictions imposed by IRSA's Catalog Search tool, and 3), if requested, tries to reformat the table to IPAC Table Format. The new version more accurately flags tables that do not meet the requirements of IRSA tools, and provides users with clearer descriptions of the incompatibilities found.

The IRSA Viewer is a new image/catalog preview interface that is based on the same image/catalog interface underlying the SHA. It provides enhanced previewing of images retrieved through a basic IRSA image search. It includes new features that will be added to the SHA in a future release, including new zoom options, and DS9 region file support.

July 8, 2013: SERVS & BOLOCAM GPS Release
IRSA announces the release of data from the SERVS Spitzer Exploration Science program, and the BOLOCAM v2.1 catalog.

The Spitzer Extragalactic Representative Volume Survey" (SERVS) imaged five fields at 3.6 and 4.5 microns: ELAIS-N1, Lockman Hole (LH), XMM, ELAIS-S1 and Chandra Deep Field South (CDFS). Image mosaics and photometry catalogs (both single band and highly reliable 2-band catalogs) are now available.

June 5, 2013 An updated version of the Spitzer Heritage Archive user interface is now available, which includes bug fixes and new features, notably: (1) ancillary products now come with the download of Spitzer Enhanced Imaging Products; and (2) the Frontier Fields data are now available via a Contributed Enhanced Products search.
May 22, 2013 The Wide-field Infrared Survey Explorer (WISE) and IRSA announce the NEOWISE Post-Cryo Data Release.

The 2013 NEOWISE Post-Cryo Data Release contains 3.4 and 4.6 micron (W1 and W2) Single-exposure image and extracted source data that were acquired by WISE following the exhaustion of solid hydrogen in the satellite's payload inner and outer cryogen tanks. During this period, known as the NEOWISE Post-Cryo survey phase, the WISE optics and focal plane assemblies warmed to 73.5 K, and the W1 and W2 HgCdTe detectors continued to operate with sensitivities close to those achieved during the full cryogenic mission phase. WISE scanned approximately 70% of the sky during the Post-Cryo phase, completing a survey of the inner Main Asteroid Belt, and a second coverage epoch of the inertial sky. The 2013 NEOWISE Post-Cryo Release supersedes the 2012 Post-Cryo Preliminary Release.

May 15, 2013 IRSA and the U.S. Planck Data Center announce the release of enhanced visualization and catalog search tools for the Planck Catalog of Compact Sources and the Planck Sunyaev-Zeldovich catalogs. In addition, compact subsets of the Markov Chains for cosmological parameters (which explore a variety of cosmological models with combinations of Planck and other data) and an updated version of the healpix2tan software (for producing on the fly tangent plane cutouts from healpix all-sky maps), are being made available.
May 9, 2013 IRSA announces the first release of the Spitzer Frontier Fields data. Using Director's Discretionary observing time, Spitzer and Hubble are undertaking a revolutionary three-year deep field observing program to peer deeper into the Universe than ever before. The Frontier Fields will combine the power of Spitzer and HST with the natural gravitational telescopes of high-magnification clusters of galaxies. These will be the second deepest observations of blank fields and deepest observations of clusters and their lensed galaxies ever obtained.
April 18, 2013 IRSA announces the release of new data from the S4G Spitzer Exploration Science program and from the COSMOS survey.

The "Spitzer Survey of Stellar Structure in Galaxies" S4G catalog is now available, including photometry, model fit parameters, measurements from the literature, and links to the S4G data for each galaxy. Ellipse fit models are also now available for all 2,352 galaxies.

The COSMOS archive now includes the galaxy density measurements from Scoville et al. (2013).

March 21, 2013 ESA, NASA, the Planck Collaboration, and IRSA announce the first release of all sky temperature maps, foreground component maps and cosmology results from the Planck mission. Also included in this release are updated catalogs of sources that are foregrounds to the CMB, mission and instrument parameters, software and external data sets which are useful for analysis of Planck data. Enhanced visualization capabilities for map sections are also available. The Planck Data Release 1 (DR1) products are based on data collected during the nominal mission which spans the period between August 13 2009 and November 26 2010.

Planck is a European Space Agency mission with significant NASA involvement. The primary goal of the Planck mission is to measure the intensity and polarization of the sky over a range of frequencies from 30 to 857 GHz (wavelengths of 1 cm to 350 microns) in order to characterize the Cosmic Microwave Background (CMB) radiation. Planck was launched on May 14, 2009 aboard the same rocket that carried the Herschel Space Observatory into space.

February 20, 2013 IRSA announces the release of new data from the BOLOCAM Galactic Plane Survey and the GLIMPSE360 Spitzer Exploration Science program.

BOLOCAM is a 1.1mm instrument at the Caltech Submillimeter Observatory which the BOLOCAM Galactic Plane Survey used to cover 170 square degrees at a wide range of Galactic longitude. The BOLOCAM GPS v2 release includes improved images and a catalog. The new images have improved fidelity and more uniform noise, and cover many new fields.

The "Completing the Spitzer Galactic Plane Survey" GLIMPSE360 DR2 release extends the GLIMPSE catalog coverage from l=169-229 degrees and includes images covering the l=109-174d area.

January 4, 2013 The Spitzer Science Center and IRSA announce the release of a set of Enhanced Imaging Products (EIP) from the Spitzer Heritage Archive. These include Super Mosaics (combining data from multiple programs where appropriate) and a Source List of photometry for compact sources. The primary requirement on the Source List is very high reliability -- with areal coverage, completeness, and limiting depth being secondary considerations. The EIP include data from the four channels of IRAC (3.4, 4.5, 5.8, 8 microns) and the 24 micron channel of MIPS. The full set of products for the Spitzer cryogenic mission includes around 18 million sources.
January 4, 2013 IRSA announces the release of the first delivery from the Spitzer Survey of Stellar Structure in Galaxies (S4G) Exploration Science program.

S4G consists of a sample of 2,352 galaxies, which have been mapped with IRAC channels 1 and 2 (3.6 and 4.5 microns). The first delivery includes all IRAC images, along with ellipse fitting models for over 2,000 galaxies and Galfit models for 200 galaxies.

October 29, 2012 IRSA announces the release of Finder Chart v2 beta and a contributed photometry catalog from the Palomar Transient Factory (PTF) project.

Finder Chart v2 beta updates IRSA's popular Finder Chart tool to have the same look and feel as other IRSA services such as the Spitzer Heritage Archive and the WISE Image Service. In addition to the more flexible and interactive interface, Finder Chart v2 beta also includes WISE and IRAS data.

The Palomar Transient Factory Photometric Calibrator Catalog v1.0 is a photometrically calibrated catalog of non-variable sources from the PTF observations. The catalog contains calibrated R_PTF-filter magnitudes for about 21 million sources brighter than magnitude 19, over an area of about 11233 square degrees.

August 27, 2012 IRSA announces the release of a new contributed Spitzer data set, the MIPS Local Galaxies survey. This data set compiles the Spitzer MIPS observations of 240 nearby galaxies in the fields covered by several Herschel-SPIRE Guaranteed Time Programs. MIPS images and a photometry catalog are available.
July 31, 2012 The Wide-field Infrared Survey Explorer (WISE; Wright et al. 2010) and IRSA announce the NEOWISE Post-Cryo Preliminary Data Release.


The NEOWISE Post-Cryo Preliminary Release consists of over 900,000 3.4 and 4.6 micron images and a database of over 4.9 billion source detections extracted from those images, acquired between September 29, 2010 and February 1, 2011 after the satellite's solid hydrogen cryogen was completely exhausted. During this 115 day period, known as the NEOWISE Post-Cryo survey phase, the telescope and payload warmed to approximately 73.5 K, and the 3.4 and 4.6 micron detectors continued to operate with nearly the same sensitivity as in the full cryogenic mission phase with only a small increase in the number of high noise pixels. WISE obtained multiple, independent observations of approximately 70% of the sky during the Post-Cryo phase, completing a survey of the inner Main Asteroid Belt and a second coverage epoch of the inertial sky.

A summary of the WISE mission resources is available on the WISE mission page. A quick guide to the Release data products, data access instructions and supporting documentation is available.

July 31, 2012 IRSA announces the release of a new contributed data set, the Bulge Radial Velocity Assay (BRAVA). BRAVA consists of spectra of approximately 8500 red giants in the Galactic bulge.
July 2, 2012 The Wide-field Infrared Survey Explorer (WISE; Wright et al. 2010) and IRSA announce the WISE 3-Band Cryo Data Release.


The WISE 3-Band Cryo survey phase began on 6 August 2010 following the exhaustion of frozen hydrogen in the payload's outer cryogen tank. WISE scanned approximately 30% of the sky over the next 54 days while the focal planes were cooled by hydrogen ice in the inner cryogen tank. The telescope warmed from the 12 K maintained during the main mission to 45 K. Imaging data in the 3.4, 4.6 and 12 micron bands were acquired, but elevated thermal emission from the telescope prevented useful data from being collected in the 22 micron band. Release data products include an Atlas of 5,649 match-filtered, calibrated and coadded image sets, and a Source Working Database containing positions and 3-band photometry for over 261 million sources detected on the Atlas Images.

A summary of the WISE mission resources is available on the WISE mission page. A quick guide to the Release data products, data access instructions and supporting documentation is available.

June 26, 2012 IRSA announces new releases from the Spitzer Enhanced Imaging Source List, GLIMPSE, and COSMOS projects.


An updated version of the Spitzer Enhanced Imaging Source List is now available. Reliability has been further improved, and information on WISE detections is now included.

The final delivery from GLIMPSE3D and the first delivery from GLIMPSE360 are now available. Background matched mosaics for GLIMPSE3D are now available, as are the first catalogs from GLIMPSE360, covering the l=109.0-169.0deg area

Members of the COSMOS team can now access updated Herschel SPIRE images, Spitzer IRAC, VLA 90cm, and SCUBA2 data.

March 14, 2012 The Wide-field Infrared Survey Explorer (WISE; Wright et al. 2010) and IRSA announce the WISE All-Sky Data Release.


WISE surveyed the entire sky at 3.4, 4.6, 12 and 22 microns in 2010, achieving 5-sigma point source sensitivities better than 0.08, 0.11, 1 and 6 mJy in the four bands in unconfused regions on the ecliptic plane. The WISE All-Sky Release incorporates all data taken during the WISE full cryogenic mission phase, 7 January to 6 August 2010. All data were reprocessed with improved calibrations and reduction algorithms for the All-Sky Release. Release data products include an Atlas of match-filtered, calibrated and coadded images in the four WISE bands, a Source Catalog containing positions and four-band photometry for over 563 million objects, and an Explanatory Supplement.

Ancillary products include an archive of calibrated WISE single-exposure images and a database of 9.4 billion source extractions made from those images, and moving object tracklets identified by the NEOWISE program (Mainzer et al. 2011).

A quick guide to the Release data products, data access instructions and supporting documentation is available. A summary of the WISE mission resources is available on the WISE mission page.

February 23, 2012 IRSA announces new data releases from the COSMOS team, the 5MUSES, SAGE-Spec, and SASS Spitzer Legacy teams, and the Abell1763 contributed data set.


The COSMOS team has released catalogs of X-ray groups and group member galaxies.

The second and final 5MUSES data release consists of low-resolution (SL and LL) IRS spectra of 330 galaxies, along with high resolution (SH and LH) spectra of 21 galaxies.

The third and final SAGE-Spec data release includes all IRS staring mode spectra within the SAGE footprint, updated to the final S18.18 IRS pipeline version.

The third and final SASS data release includes updated documentation and positions for the 159 stars in SASS.

The Abell1763 data release consists of images of the galaxy cluster Abell 1763 at all Spitzer bands, along with ground-based r, J, H, and K-band observations and two photometry catalogs.

January 12, 2012 The SSC and IRSA are producing a set of Enhanced Imaging products using most of the imaging data in the Spitzer Heritage Archive. These products include Super Mosaics built from multiple programs where appropriate and a Source List (SL) of photometry for compact sources. The SL was designed to be highly reliable; areal coverage and completeness were secondary considerations. The Enhanced Imaging Products include data from the four channels of IRAC (3-8 microns) and the 24 micron channel of MIPS. The Preliminary Data Release covers about 15% of the final planned area and includes 7 million sources.
January 12, 2012 The IRS Enhanced Products include 17,000 low-resolution merged spectra, and a catalog of synthetic photometry, source positions, PSF profile widths, among other useful quantities. The catalog and spectra may be searched through both Gator and the SHA.
January 12, 2012 The Spitzer Heritage Archive v3.0 includes access to new IRS Enhanced Products and easier access to Contributed Enhanced Products (mostly consisting of Legacy delivered products). In addition, numerous changes to the look and feel of the interface, including significant improvements to the visualization tools, and improved under-the-hood infrastructure have been implemented.
January 12, 2012 IRSA's Data Discovery Service Radar now searches observations from the Herschel Space Observatory, using the Virtual Observatory interfaces provided by the Herschel Science Archive (HSA) at ESA. The simple Herschel Metadata Search service provides a quick way for IRSA users to search for Herschel coverage.
December 19, 2011 IRSA announces a new data release from the COSMOS team. The COSMOS-IRS Spitzer Legacy program consists of IRS low resolution spectra of 53 sources in the COSMOS field.
September 21, 2011 IRSA announces new data releases from the Cygnus-X, SpUDS, and S5 Spitzer Legacy programs. In addition, new COSMOS data has been added to the project internal archive.

The Cygnus-X Legacy program observed 24 square degrees of the Cygnus-X molecular cloud complex, one of the richest known regions of star formation in the Galaxy. IRAC and MIPS 24 micron images are now available, along with two catalogs.

The second and final SpUDS delivery consists of updated IRAC and MIPS images and new IRAC and MIPS catalogs.

The Spitzer SDSS Statistical Spectroscopic Survey (S5) obtained Spitzer IRS spectra of 292 galaxies selected from SDSS. This project is an extension of the SSGSS Spitzer Legacy program.

Members of the COSMOS team can now access images and catalogs from Herschel's PACS and SPIRE instruments. In addition, images from the NEWFIRM Medium Band Survey are now available, along with additional Subaru data and an updated photometry catalog.

August 18, 2011 IRSA announces new data releases from MUSYC and SWIRE.

The Multiwavelength Survey by Yale-Chile (MUSYC) consists of deep optical medium-band and broadband optical and near-IR imaging of the ~30'x30' Extended Chandra Deep Field South. This field includes the GOODS-South field and the Hubble Ultra Deep Field, and covers the same area as the SIMPLE Spitzer Legacy program.

Updated IRAC and MIPS images are now available from the fifth and final data release of the SWIRE Spitzer Legacy program.

July 20, 2011 IRSA announces the release of CUBISM version 1.8, as well as new data releases from COSMOS and the Spitzer First Look Survey (FLS), GOALS, GLIMPSEII and SAGE-SMC Spitzer Legacy programs.

A new version of CUBISM has been released (v1.8). The main improvement is new calibration sets that are compatible for use with data processed with Spitzer IRS pipeline version S18.18, and updates for compatibility with IDL version 8. Download instructions and documentation are available here.

The COSMOS team has released galaxy postage stamp images associated with the SHERA software package.

The presentation of the Spitzer First Look Survey data has been revised and updated to include all available data (Spitzer and ancillary) in a consolidated interface for ease of use.

The final GOALS data release consists of IRAC and MIPS images and IRS spectra of the remaining 100 Luminous Infrared Galaxies in the GOALS sample.

The final GLIMPSEII data release consists of IRAC subarray mode images and the associated catalog.

The final SAGE-SMC data release includes 1.2" pixel scale IRAC mosaics, IRAC and MIPS residual image mosaics, as well as combined epoch catalogs.

May 19, 2011 IRSA announces new data releases from the Balloon-borne Large Area Submillimeter Telesecope (BLAST) and the South Ecliptic Pole (SEP) and SAGE-SMC Spitzer Legacy programs.

BLAST includes updated data products and additional fields, including the South Ecliptic Pole field.

The ACS 2.0 and CFHT H-band images previously available only to the COSMOS team are now accessible through the public COSMOS archive.

Spitzer SEP complements the BLAST observations of the South Ecliptic Pole field with 24 and 70 micron MIPS observations covering 11.5 square degrees. Images and source catalogs are now available.

The second SAGE-SMC data release includes IRAC and MIPS image mosaics as well as combined epoch catalogs.

April 14, 2011 Data products from the WISE Preliminary Release are now available. Image products are accessible through the WISE Image Archive. The Source Catalog is available through IRSA's Catalog Search service.

The WISE Preliminary Release includes data from the first 105 days of WISE survey observations, 14 January 2010 to 29 April 2010, that were processed with initial calibrations and reduction algorithms. Release data products include an Atlas of 10,464 calibrated, coadded Image Sets, a Source Catalog containing positional and photometric information for over 257 million objects detected on the WISE images, and an Explanatory Supplement that provides a user's guide to the WISE mission and format, content, characteristics and cautionary notes for the Release products. Ancillary release products include an archive of over 754,000 Single-exposure Image sets and database of over 2.2 billion source extractions from those images, and moving object tracklets identified as part of the NEOWISE program (Mainzer et al. 2011).

NASA's Wide-field Infrared Survey Explorer (WISE; Wright et al. 2010) mapped the sky at 3.4, 4.6, 12, and 22 μm in 2010 with an angular resolution of 6.1" 6.4" 6.5" & 12.0" in the four bands. WISE achieved 5σ point source sensitivities better than 0.08, 0.11, 1 and 6 mJy in unconfused regions on the ecliptic in the four bands. Sensitivity improves toward the ecliptic poles due to denser coverage and lower zodiacal background.

April 7, 2011 The Spitzer project has reached a major milestone in the completion of the Spitzer cryogenic mission. Since the end of the cryogenic mission in May 2009, the Spitzer Science Center (SSC) has been conducting the final data processing of all cryogenic mission data and these data are now available in the Spitzer Heritage Archive at IRSA. IRSA is responsible for the long-term curation of the Spitzer mission science data, tools and documentation. In addition to curation of the data, IRSA now has responsibility for the cryogenic mission science user support.

The Spitzer cryogenic mission website is now available here. The Spitzer Science Centers active warm mission website, as well as links to the cryogenic mission pages at IRSA, remains at http://ssc.spitzer.caltech.edu/.

March 9, 2011 We are pleased to announce the release of the Spitzer Heritage Archive (SHA) version 2.0!

This new version includes:

  • Access to the Legacy Enhanced Data products -- try the "Inventory search" on the bottom of the left hand side of the search page.
  • Automatically generated download scripts for downloading and unzipping many zip files at once, in a hands-off fashion.
  • Virtual Astronomical Observatory (VAO) compliant application program interface (API) for all image data; extracted spectra will be available via the API in a future version.
  • When you first go to the page, you are dropped directly into a position search (fewer clicks to get searching quickly).
  • Many fixed bugs from version 1.5.
  • The online help has been updated, but new with this version is a standalone PDF SHA manual. Conversion of this manual to HTML is anticipated to happen in the next several weeks. The first two recipes in the Data Analysis Cookbook (also available at that link) are detailed step-by-step instructions for getting started using the SHA, and they will be updated with more recent screen shots by the end of the month. Video screen-cast demonstrations will also be provided at that link by the end of the month if not sooner.
February 9, 2011 The Infrared Processing and Analysis Center (IPAC) announces the release of version 3.3 of Montage. This version, now available for download, includes expanded HDU support for multi-part image files and improved support for the Message Passing Interface (MPI).

Also posted are new contributed C-shell scripts that automate the creation of three-color mosaics from DSS, SDSS and 2MASS data.

Finally, users may now stay informed about software updates, learn how Montage is used in scientific analysis and generating science products, and share images on the new Montage blog.

January 12, 2011 ESA, NASA, the Planck Collaboration, and IRSA announce the first Planck data release: the Planck Early Release Compact Source Catalog (ERCSC). The ERCSC can be accessed through both the NASA Planck Archive and IRSA's Catalog Search service. In addition, the ERCSC is available for download along with the Explanatory Supplement.

Planck is a European Space Agency mission with significant NASA involvement to measure the intensity and polarization of the sky over a range of frequencies from 30 to 857 GHz (wavelengths 1 cm to 350 microns), primarily to study the cosmic microwave background. Planck launched in May 2009 aboard the same rocket carrying Herschel into space, and it is expected to continue operations until January 2012.

The data release consists of the Early Release Compact Source Catalogue (ERCSC), which includes lists of sources detected in each of the Planck bands, as well as the Early Cold Cores (ECC) and the Early Sunyaev-Zeldovich (ESZ) galaxy cluster catalogues. The ERCSC covers the whole sky and has a cumulative reliability of >90%. It contains of order 15000 unique sources spread over the Planck bands, 189 candidate clusters detected through the Sunyaev Zeldovich effect, and 915 cold molecular cloud cores in the Galaxy.

December 15, 2010 IRSA announces new data releases from the "From Molecular Cores to Planet-Forming Disks" (C2D), "The Vertical Stellar and Interstellar Structure of the Inner Galaxy" (GLIMPSE3D), "Surveying the Agents of Galaxy Evolution in the Tidally- Disrupted, Low-Metallicity Small Magellanic Cloud" (SAGE-SMC), "Spitzer Atlas of Stellar Spectra" (SASS), and "Spitzer Deep Wide-Field Survey" (SDWFS) Spitzer Legacy programs.

C2D now includes BOLOCAM 1.1 mm data on the Ophiuchus, Perseus, and Serpens clouds.

The latest GLIMPSE3D data release includes IRAC mosaics of all remaining fields; the full sky coverage of the survey is now available at both native (1.2" pixels) and high resolution (0.6" pixels). In addition, single epoch catalogs are now available for the GLIMPSE3D fields.

The first SAGE-SMC data release consists of the first epoch IRAC and MIPS 24 micron catalogs.

The second SASS data release expands the atlas to 159 stars, with an updated catalog.

The second SDWFS data release consists of a variable source catalog and light curves for the variable sources.

November 4, 2010 IRSA announces new data releases from the "Surveying the Agents of a Galaxy's Evolution" (SAGE) and "SAGE-Spectroscopy: The Life Cycle of Dust and Gas in the Large Magellanic Cloud" (SAGE-Spec) Spitzer Legacy programs.

The final delivery (DR3) from SAGE includes IRAC and MIPS mosaics and sixteen catalogs. IRAC data are available at 2", 1.2", and 0.6" pixel scales (the latter in individual tiles for easier download). IRAC observations of an offset position 25.8d from the LMC are also provided. MIPS mosaics are available at 24, 70, and 160 microns, with the 24 micron data also including separate mosaics of each of the two epochs.

The first two deliveries from SAGE-Spec provide over 600 IRS spectra of sources within the LMC. These data include 23 spectral cubes of extended sources. SAGE-Spec also includes MIPS-SED data of 61 sources.

September 2, 2010 IRSA announces new data releases from the "Local Volume Legacy Survey" (LVL) and the "Spitzer IRAC/MUSYC Public Legacy Survey in the Extended Chandra Deep Field South" (SIMPLE) Spitzer Legacy programs.

The final delivery (DR5) from LVL completes the sample of 258 galaxies in the local universe, imaged with IRAC and MIPS on Spitzer, near- and far-UV with GALEX, and H-alpha and R from the ground.

SIMPLE covers the 0.5 x 0.5 deg area surrounding the CDF-South with deep Spitzer IRAC imaging. This first delivery includes combined IRAC mosaics of the field (including data from GOODS on the field center), as well as mosaics of each of the two epochs of observation and a photometry catalog.

August 24, 2010 We are proud to announce the availability of version 1.5 of the Spitzer Heritage Archive (SHA). This is the first release out of Beta for the SHA. Note that the SHA will replace Leopard in November 2010! All data currently available in Leopard will be available through SHA as of 1 September 2010, including warm mission and proprietary data. Search features and visualization have also been improved. For more details, see the official announcement.
August 5, 2010 IRSA announces new data releases from the "Galactic Legacy Infrared Midplane Survey Extraordinaire" (GLIMPSE II) and "Spitzer Public Legacy Survey of the UKIDSS Ultra Deep Survey" (SpUDS) Spitzer Legacy programs.

The GLIMPSE II survey covers the inner region of the Galaxy, excluding the Galactic center. The current release consists of four single-epoch catalogs designed for users interested in variable sources.

SpUDS is a survey of the ~1 square degree UKIDSS Ultra Deep Survey, consisting of deep IRAC and 24 micron MIPS observations.

July 8, 2010 IRSA announces the release of the final delivery of the Spitzer Legacy program, the Formation and Evolution of Planetary Systems (FEPS). IRSA also now serves the all-sky U.S. Naval Observatory CCD Astrograph Catalog (UCAC3).

FEPS is a survey of 328 stars using IRAC and MIPS imaging, IRS spectra, and providing models for each star. The final delivery completes the sample and provides updated data for all stars in the survey.

UCAC3 is a stellar proper motion catalog covering the 8-16 magnitude range in a bandpass between V and R. IRSA provides this catalog (also hosted at USNO and other data centers) as a service to users who wish to cross-correlate other IRSA data against it.

June 2, 2010 IRSA announces the release of two all-sky AKARI Catalogues, new datasets from the Cosmic Evolution Survey (COSMOS), and a new Spitzer Legacy program, the Spitzer SDSS Galaxy Spectroscopic Survey (SSGSS).

AKARI is the first Japanese infrared astronomical satellite, and surveyed more than 96% of the sky during its cryogenic mission from May 2006 to August 2007. The two catalogues include 870,000 sources detected at 9 and/or 18 microns, and 427,000 sources detected at 65, 90, 140, or 160 microns.

Members of the COSMOS team can now access the v2.0 ACS mosaic with a pixel scale of 0.03 arcsec/pixel. All COSMOS Subaru intermediate band data are now available through IRSA, and the COSMOS VLA Deep Catalog has been updated.

SSGSS is a mid-infrared spectroscopic survey of a representative sample of galaxies from the Sloan Digital Sky Survey in the SWIRE/Lockman Hole region. The 101 star forming galaxies in the sample were selected from those with full SDSS, GALEX, IRAC, and MIPS photometry.

April 20, 2010 The Montage image mosaic Web service now provides support for calibrated DR7 images from the Sloan Digital Sky Survey (SDSS). The Web service returns astronomical mosaics on request from three large-survey data sets: 2MASS, SDSS and DSS. To access the service, click the "Mosaics" link in the navigation bar to the left.
March 22, 2010 Several updates have been made to the IRSA web page. Frequently Asked Questions are answered in the FAQ. A new documentation page collects the documentation for IRSA services in one convenient location, linked at the top of the page. Information on the IRSA User Panel and past User Surveys is now available in the Astronomy Community Input section to the right. If you have any comments or feedback, please send them to the IRSA Help Desk.
March 3, 2010 Announcing the initial Beta Release of the Spitzer Heritage Archive (SHA) interface! This new SHA interface currently provides access to data from Spitzer cryogenic campaigns where all data are publicly available. Data from campaigns where there are still proprietary data, post-cryogenic IRAC-warm data, and Legacy Enhanced Products are still available via Leopard, and they will be available in a future version of this SHA interface. Please try out the new interface and send any feedback to help@spitzer.caltech.edu
February 3, 2010 IRSA and the SSC announce the release of a new Spitzer legacy survey: the 5 mJy Unbiased Spitzer Extragalactic Survey (5MUSES). 5MUSES is a mid-infrared spectroscopic survey of 330 galaxies with f(24 um) > 5 mJy spanning a wide range of luminosity and redshift (z = 0.05 to 0.75) designed to bridge the gap between nearby galaxies and high redshift galaxies (z ~ 2). This release (DR1) consists of IRS spectra for 100 5MUSES galaxies.
February 3, 2010 Fourteen middle school, high school, and community college science teachers have been selected for the NASA/Infrared Processing and Analysis Center Teacher Archive Research Program (NITARP) nationwide. These individuals and their students will conduct astronomy research, make presentations at AAS meetings, and may publish their work in a refereed journal.
November 19, 2009 IRSA announces the release of several new datasets for the Cosmic Evolution Survey (COSMOS). New images include Subaru intermediate band optical data and UKIRT J-band images. New source catalogs for Chandra and VLA data are available through Gator. Two new morphology catalogs (Cassata and Tasca) are also available, each with approximately 50% more sources than previous COSMOS morphology catalogs. See the COSMOS datasets page for more details.
September 30, 2009 IRSA and the SSC announce that IRSA is now serving the first data release from the Spitzer Deep Wide-Field Survey. In addition, we announce the release of the Balloon-borne Large Aperture Submillimeter Telescope data.

The SDWFS is a four-epoch infrared survey of 10 square degrees in the Boötes field of the NOAO Deep Wide-Field Survey using IRAC. The first data release consists of mosaics and catalogs of each epoch in each IRAC band, as well as combined mosaics and catalogs for the sum of all IRAC integrations of this field.

BLAST is a 2-m balloon-borne submillimeter telescope that conducted the first wide-area submillimeter surveys at wavelengths 250-500 microns on two long-duration flights in 2005 and 2006. Built and flown by an international collaboration headed by the University of Pennsylvania (P.I. Mark Devlin), the telescope uses a prototype of the SPIRE camera for the Herschel satellite.
September 16, 2009 IRSA and the SSC announce the release of a new Spitzer legacy survey: Spitzer Atlas of Stellar Spectra (SASS). SASS consists of Spitzer IRS low-resolution spectra for a sample of 144 stars spanning the full range of spectral types.
June 5, 2009 IRSA and the SSC announce that IRSA is now serving the latest data releases from three Spitzer legacy surveys: Local Volume Legacy (LVL) Survey, the Taurus survey, and GLIMPSE 3D. In addition, we announce the release of the BOLOCAM Galactic Plane Survey (GPS) data.

The LVL consists of 258 galaxies that are being mapped at 3.6, 4.5, 5.8, 8.0, 24, 70, and 160 microns. Ancillary images in H-alpha, broad- band R, and two UV continuum bands are also available for some galaxies. The new release, DR3, includes high level science products from IRAC and MIPS for 31 galaxies.

The Taurus survey ("Taurus 2: Finishing the Spitzer Map of the Taurus Molecular Clouds") has mapped about 44 sq. degrees within the Taurus star-forming region using IRAC and MIPS. The new update includes serving the DR3 image mosaics and the September 2008 catalog, as well as offering image cutouts.

The "Galactic Legacy Infrared Midplane Survey Extraordinaire" (GLIMPSE) is a fully sampled, confusion-limited infrared survey of 2/3 of the inner Galactic disk using IRAC. The GLIMPSE 3D component extends the survey in strips of latitude above and below the Galactic plane. The current incremental release extends the data availability from 50% to 80%.

BOLOCAM is a large-format (115 pixel) bolometric camera at the Caltech Submillimeter Observatory. The BOLOCAM Galactic Plane Survey mapped 150 sq. deg. in the galactic plane at a wavelength of 1.1mm. The catalog, created using a custom algorithm, includes both compact sources and filamentary structure.

[See image: A 2x1 degree image of the Galactic Center and the surrounding Central Molecular Zone, as seen by the VLA 20 cm (purple, tracing H II regions), BOLOCAM 1.1 mm (orange, highlighting cold dust), and Spitzer/GLIMPSE (cyan, showing stars and PAH emission). Credit: A. Ginsburg (U. Colorado - Boulder) et al., BGPS Team, GLIMPSE II Team ]
April 20, 2009 IRSA and the SSC announce the first data deliveries from the Local Volume Legacy (LVL) Survey. The LVL consists of 258 galaxies that are being mapped at 3.6, 4.5, 5.8, 8.0, 24, 70, and 160 microns. Ancillary images in H-alpha, broad-band R, and two UV continuum bands are also available for some galaxies.
April 20, 2009 IRSA also announces new data for the Cosmic Evolution Survey (COSMOS). These new data include images, catalogs, and spectra at a variety of wavelengths. See the COSMOS dataset page for more details.
November 14, 2008 IRSA and the SSC announce the release of several Spitzer Legacy data sets:
  1. New deliveries from the "Galactic Legacy Infrared Midplane Survey Extraordinaire" (GLIMPSE) I, II, and 3D projects that include source lists and four-band IRAC image mosaics at two resolutions; (See image: A 3-color image from the GLIMPSE 3D Legacy III project. This image shows one of 16 fields currently being released by the GLIMPSE 3D team.)
  2. The first delivery from the "Great Observatory All-sky LIRG Survey" (GOALS), which contains IRS spectra together with images and spatial profiles from IRAC and MIPS for 50 galaxies;
  3. The first delivery of "Taurus 2: Finishing the Spitzer Map of the Taurus Molecular Clouds" (Taurus), which includes MIPS and IRAC image mosaics and a source catalog.
November 14, 2008 IRSA announces the release of several new datasets for the Cosmic Evolution Survey (COSMOS). These are the Photometric Redshift Catalog, Spitzer MIPS GO3 images and catalogs, and 10,000 Z-COSMOS optical spectra.
October 15, 2008 IRSA and the SSC announce the release of the third delivery of the Spitzer Legacy Project "A 24 and 70 Micron Survey of the Inner Galactic Disk with MIPS" (MIPSGAL). This delivery includes mosaics at 24um that cover the entire MIPSGAL survey region. Galactic longitudes of -68 deg < l < +69 deg are covered for |b| < 1 deg, with more extensive latitudinal coverage, |b| < 3 deg, for the inner Galaxy (-8 deg < l < +9 deg). (See image: A negative image of a portion of the inner Galaxy as seen at 24 um in MIPSGAL)
August 26, 2008 IRSA and the SSC announce the release of the Winter '08 second data delivery from the Spitzer Legacy Program "Surveying the Agents of a Galaxy's Evolution" (SAGE). The delivery includes an update to the Winter '07 catalogs, along with the first MIPS mosaics and IRAC time stamp images. Cutouts of MIPS images in both FITS and JPEG format are also available. (See image: The Large Magellanic Cloud as seen by Spitzer/MIPS. This three-color image - created from SAGE MIPS mosaics at 24um (blue), 70um (green), and 160um (red) - has been created with IRSA's Montage mosaic engine. )
August 26, 2008 IRSA and the SSC announce the first release from the Spitzer Legacy Program "Far-Infrared Deep Extragalactic Legacy Survey" (FIDEL). The delivery includes MIPS images and cutouts for all three of FIDEL's fields: the Extended Chandra Deep Field South (ECDFS), the Extended Groth Strip (EGS) and the GOODS-North area.
August 11, 2008 IRSA announces the release of several new datasets for the Cosmic Evolution Survey (COSMOS). These are version 2.5 of the NICMOS parallel observation images, version 1.0 of the VLA deep survey image, version 2.0 of the VLA large survey catalog, and version 1.0 of the VLA deep survey catalog. (See image: The two-square-degree COSMOS field (centered at RA=10:00:28.6 and DEC=+02:12:21.0) as seen by the VLA deep survey. The 2,901 sources from the recently released VLA deep survey catalog are overlaid in green.)
July 29, 2008 IRSA announces the availability of the United States Naval Observatory B1.0 Catalog through the general search engine. The USNO-B is an all-sky optical (B-, R-, and I-band) catalog consisting of positions, proper motions, magnitudes, and other measured quantities for 1,045,175,762 objects. Data were derived from digitizing scans of almost 7,500 photographic plates taken from various sky surveys during the interval from 1949 to 2002. This catalog has been requested by users as an important adjunct to data sets already housed at IRSA. (See image: Galactic coordinate map of source density in the USNO-B Catalog.)
March 31, 2008 IRSA and the SSC announce the release of the fifth data delivery (DR5) from the Spitzer Legacy Program "The Spitzer Infrared Nearby Galaxies Survey - Physics of the Star-Forming ISM and Galaxy Evolution" (SINGS). New in DR5 are updated processing of IRAC, MIPS and IRS data, as well as the addition of MIPS Spectral Energy Distribution (SED) data for two-thirds of the SINGS galaxies. (See image #1: A 3-color optical image using B-band data (blue), R-band (green) and I-band (red); or image #2: A 3-color IRAC IR image using IRAC Ch1 (blue), IRAC Ch2 (green) and IRAC Ch4 (red).)
March 12, 2008 IRSA announces the release of the 2MASS Long Exposure (6x) catalogs, images, and scan/calibration databases covering the Large and Small Magellanic Clouds. This marks the final data release from the 2MASS Extended Mission.
March 12, 2008 IRSA has released the following new catalogs, accessible through the Gator query engine & the RADAR Inventory service: DENIS 3rd Release (Sep. 2005); Point Sources in a Spitzer/IRAC Survey of the Galactic Center (Ramirez et al. 2008); and IRAS 1.2-Jy Redshift Survey, the IRAS Comet Survey, the IRAS Asteroid Survey and the IRAS Large Galaxies Catalog.
March 12, 2008 IRSA and the SSC announce the release of the final data delivery from the Spitzer Legacy Program "From Molecular Cores to Planet-Forming Disks" (C2D). (See image: a 3x3 square degree 3-color mosaic section of the Ophiuchus cloud in the C2D data collection. IRAC Ch1 is shown as blue, IRAC Ch2 is green and IRAC Ch4 is red.)
February 27, 2008 IRSA announces the update of the NASA Exoplanet Science Institute (NExScI) Palomar Testbed Interferometer (PTI) and Keck Interferometer (KI) metadata search service (NExScI_PTI_KI).
February 25, 2008 IRSA announces the release of the The Bolocam Lockman Hole Millimeter-Wave Galaxy Survey: Galaxy Candidates and Number Counts , measured at 1.1 mm with the millimeter-wavelength bolometer array camera located at the Caltech Submillimeter Observatory.(See image: The BOLOCAM map of the Lockman Hole at 1.1 mm.)
January 25, 2008 IRSA announces the release of the Eureka Lawrence Berkeley National Laboratory (LBNL) Far-IR Lockman Hole Map (ELFLock), measured at 160 um with the Multiband Imaging Photometer for Spitzer (MIPS). (See image: The ELFLock map of the Lockman Hole at 160 um.)
December 17, 2007 IRSA and the Spitzer Science Center announce the release of images from the Spitzer Legacy Program "A 24 and 70 Micron Survey of the Inner Galactic Disk with MIPS (MIPSGAL).". The 24 micron images are accessible through spatial queries and through the cutouts service (See image: This 0.2 x 0.2 degree 24 micron image of the massive star cluster Westerlund I as seen by MIPSGAL. This image shows the dramatic effect that the star cluster has on the interstellar medium surrounding it.)
November 15, 2007 IRSA and the Spitzer Science Center announce the release of new data sets from the Spitzer Legacy Program "Galactic Legacy Infrared Midplane Survey Extraordinaire" (GLIMPSE). The final image and catalog deliveries of GLIMPSE-I, along with the first image and catalog deliveries of GLIMPSE-II, are now available for study using spatial and visualization tools. (See image: The inner portion of the 3.1x3.45-degree, three-color IRAC mosaic centered near galactic longitude 354 degrees and latitude 0 degrees. This image is from the newly-released GLIMPSE-II survey.)
Oct 25, 2007 Sloan Digital Sky Survey (SDSS) data access using IRSA's general search service has been decommissioned. IRSA's Finder Chart service has access to quick SDSS data cutouts. SDSS data can also be accessed using the IRSA and NVO image mosaic service. SDSS data can be found at Sloan.
October 4, 2007 IRSA and the NVO announce a new image mosaic service. Using a simple browser interface, the service returns science-grade mosaics that (a) preserve fluxes and astrometry and (b) rectify backgrounds to a common level. Images/bands available for mosaicking include
  • 2MASS J, H, or Ks
  • SDSS u, g, r, i, or z
  • DSS1 B or R
  • DSS2 B, R, or I
(See image: A three-color, 1x1-degree view centered on the dark cloud Barnard 92. This image was created from DSS2 R-band (blue), DSS2 I-band (green), and 2MASS J-band (red) FITS mosaics produced through the new service. Another dark cloud, Barnard 93, is also seen along the eastern (left) side of the image.)

Comments and questions are welcomed through the Montage Help Desk.
September 24, 2007 IRSA has deployed a beta-release of a major upgrade to Scanpi. We solicit users' feedback to the IRSA Helpdesk. "Classic" Scanpi is still available, but IRSA plans to decommission it in December 2007. The new version of Scanpi improves the underlying fitting algorithms, and offers new functionality such as overlays of scan tracks on sky images and visualization of all steps in the processing. Please read the User's Guide and "Differences between new and classic Scanpi" to learn more. (See image: Scanpi results show the 12 micron detector scan tracks for IRAS 03419+6756, on a DSS2 R-band background image. Scan numbers (in red) indicate the start of the scan, to show the scan direction on the sky.)
August 30, 2007 IRSA and the Spitzer Science Center have released an interface that provides access to Spitzer Space Telescope post-processed Basic Calibrated Data (post-BCD) products. The interface supports queries by position, target name, i nstrument and program parameters. It returns spatial coverage maps of Spitzer observations and data product previews, and supports bulk download of data. (See image: The dark nebula known as FeSt 1-457 (from Feitzinger & Stuwe, 1984) as seen by all four bands of the Infrared Array Camera (IRAC) on the Spitzer Space Telescope.)
August 30, 2007 IRSA has released new versions of the ACS images in the COSMOS archive. This release of the data includes a slight rotation adjustment to the field, and delivers the data in tiles matching the 144 tile positions of the COSMOS ground-based data. This produces larger files than in previous versions of the ACS data, but allows for easier comparison with other COSMOS data products. The scientific content of the data is identical to that of previous releases.
July 2, 2007 IRSA and the Spitzer Science Center have released the Spitzer First Look Survey Infrared Array Camera (IRAC) and Multiband Imaging Photometer for Spitzer (MIPS) images through IRSA's Cutouts service. (see image)
May 25, 2007 IRSA and the Spitzer Science Center (SSC) announce the data release for S-COSMOS, a Spitzer Legacy program whose focus is obtaining deep infrared imaging of the 2-sq-deg area covered by the Cosmic Evolution Survey (COSMOS) project. The S-COSMOS data include an IRAC 4-band catalog and images as well as MIPS shallow images and catalogs of the entire COSMOS field. In addition there are MIPS deep images and catalogs of a 0.16 sq. deg. subfield. For more information please see the S-COSMOS archive.
May 8, 2007 IRSA has released the image validation tool. It checks that the syntax of a FITS file conforms to the FITS standard, and that the World Coordinate System (WCS) keywords are complete and have the correct datatype. It overlays 2MASS sources on the image as a simple astrometric check (best for visible and near-infrared data). Users may rebuild and revalidate defective FITS files.
February 28, 2007 The new release of the inventory service, RADAR now supports inventories of the SAGE Winter Release Catalogs, the 2MASS Extended Release Catalogs and Images, and optionally returns inventories of catalogs accessible through CDS VizieR.
February 28, 2007 IRSA has delivered a web page that describes tools available to data providers that will aid in validating the quality and formatting of data sets, including validation of source catalogs and the content of FITS files.
February 28, 2007 IPAC has released the NASA Star and Exoplanet Database (NStED), an archive and search facility for data on mainly nearby stars, with emphasis towards planet finding research. IRSA is a partner on the NStED project, and took advantage of IRSA's scaleable architecture to develop the NStED achitecture and user services.
January 25, 2007 IRSA and the Two Micron All Sky Survey (2MASS) announce the release of the 2MASS Extended Mission Ancillary Data Products. These consist of source tables and images from Survey data processing that were not released as part of the 2MASS All-Sky Catalogs and Image Atlas (March 2003). this includes calibration and special "long-exposure" observations. For more information, please see the detailed documentation.
January 25, 2007 The Cosmic Evolution Survey (COSMOS) has released GALEX FITS tables, Ks-band images from KPNO, and VLA FITS images and component catalogs. See the complete list of released data.
January 25, 2007 Version 3.0 of the Montage mosaic engine has been released. This distribution solidifies support for running jobs in a Grid environment, and includes tools for managing and manipulating FITS image mosaics. Montage is in active use in Science Product Generation, Quality Assurance of data, Development of On-line Services, Analyzing Data, and Education and Public Outreach.
January 3, 2007 IRSA and the SSC announce the release of the Spitzer Winter '07 data sets for SAGE.
November 27, 2006 IRSA announces the release of the following new data sets in the COSMOS archive: Subaru flat-field images (browse-only) and mosaics (also accessible as image cutouts) in the B, NB816, V, g', i', r' and z' filters; CFHT mosaics at u and i, and KPNO mosaic at Ks (accessible as image cutouts).
August 24, 2006 IRSA and the SSC announce the release of the Spitzer DR4 data sets for the Galactic Legacy Infrared Midplane Survey Extraordinaire (GLIMPSE) program.
July 21, 2006 IRSA and the SSC announce the release of the Spitzer DR4 data sets for SINGS.
July 21, 2006 Data tags, used to link journal articles to archived data, are now returned for all data sets served through the Atlas spatial search engine, including Spitzer Legacy data, COSMOS and IRAS.
July 21, 2006 Spatial searches of public data from the Palomar Testbed Interferometer (PTI) and Keck Interferometer (KI), archived at the NASA Exoplanet Science Institute (NExScI), are now available through IRSA.
July 21, 2006 The Keck Observatory Archive (KOA) at the NASA Exoplanet Science Institute (NExScI) is now open for business. KOA was built on IRSA's hardware and software architecture.
July 17, 2006 IRSA announces the release of Data Tags for each positional query run using Atlas. These Data Tags can be used in journal publications to indicate the origin of the archival data and to enable the reader to perform the same data query. IRSA has also made available a Data Tags, which re-creates an IRSA data query using a published Data Tag.
June 26, 2006 IRSA has released a new website design.
June 26, 2006 The user interface and return pages for RADAR, the IRSA inventory and data discovery service, have been streamlined. Enter a source name or location on the sky and RADAR returns data sets (catalogs, images, spectra, or other archives) organized by data type or by mission. It provides the ability to explore and download data sets and to refine queries.
June 26, 2006 IRSA announces the release of the NASA Exoplanet Science Institute (NExScI) - PTI & KI Public Data (NExScI_PTI_KI) using Atlas.
April 27, 2006 IRSA and the SSC announce the release of the Spitzer DR3 data sets for FEPS.
April 25, 2006 IRSA's Image Cutouts Service can be used to create small "cutout" FITS images from IRSA image data collections, including COSMOS, IRAS, 2MASS and Spitzer.
April 7, 2006 IRSA announces the release of Finder Chart v2.0, supporting overlays of 2MASS image artifacts, generation of 3-color images and interaction with 3-color images.
March 6, 2006 IRSA and the SSC announce the release of the Spitzer DR3 data sets for GOODS, SWIRE, and GLIMPSE.
January 10, 2006 IRSA is now serving ancillary Spitzer First Look Survey data taken with the MMT/Hectospec fiber spectrograph on the Spitzer Space Telescope. Redshift catalogs and spectra are available through Atlas for spatial searches; advanced search queries on catalog columns are available using Gator.
January 9, 2006 IRSA announces the release of Gator v4.0, featuring an improved user interface; and BabyGator, providing easy access to IRSA's most popular catalog holdings. The previous version of Gator will remain available to users until February 7, 2006
January 9, 2006 IRSA has released the NVO Sky Statistics Service, which generates source counts, coverage maps, and links to downloadable data for catalog holdings available through the NVO protocols, including IRSA, NED, and CDS VizieR.
January 9, 2006 New COSMOS data: IRSA has released additional ancillary data from the Hubble Treasury Program COSMOS. These data sets now include HST-ACS, Subaru, KPNO, CFHT, NICMOS, WFPC, SDSS, GALEX, XMM and a VLA image of the COSMOS field and a catalog of sources derived from it.
November 11, 2005 IRSA's access to the Spitzer public data has been decommissioned. RSA served Spitzer public data off the SSC staging location since its release in May 2004. In May 2005, the data available off the staging disk diverged from the data available in the Spitzer archive (through Leopard), which now included GO and GTO un-embargoed data. IRSA no longer replicates the staging area data, and is developing connectivity services to the full Spitzer Archive. IRSA does provide access to all 6 Spitzer Legacy Enhanced Products datasets, which have been fully integrated into RADAR, Atlas and Gator.
September 22, 2005 IRSA has just released a new service called FinderChart. FinderChart provides a visualization tool to cross-compare images from various missions. Starting with user-provided coordinates, object name, or list of names/coordinates, it displays a finder chart showing the same region of sky at the same size and orientation at various wavelengths and epochs. In this first release, FinderChart displays imaging data from the First and Second Digitized Sky Survey (DSS), the Two Micron All Sky Survey (2MASS), and the Sloan Digital Sky Survey (SDSS) Data Release 3.
August 22, 2005 Atlas is now serving Spring 2005 Spitzer Legacy Enhanced Products SWIRE (Spitzer Wide-area InfraRed Extragalactic Survey) data.
August 1, 2005 The GLIMPSE Spring '05 Catalog Spitzer Catalogs are now accessible through Gator . There are two catalogs, a catalog of reliable sources and an archive catalog of lower reliability. Click here for descriptions.
July 28, 2005 Atlas is now serving Spring 2005 Spitzer Lagecy Enhanced Products SINGS (The Spitzer Infrared Nearby Galaxies Survey) data.
July 25, 2005

The ELAIS N1 Region Spring '05 SWIRE Spitzer Catalog is now acessible through Gator.

The SWAS 10th Data Release is now available.

July 11, 2005 IRSA has released a Cutouts Service, which is a companion service to Atlas; where Atlas returns entire images, Cutouts creates subimages from the original files, at locations and sizes requested by the user. Results can be downloaded individually, in batch mode (with wget), or as a tar file. The Cutouts Service is available to use with the COSMOS data collection.
July 11, 2005 The Improved Reprocessing of the IRAS Survey (IRIS) images are reprocessed versions of the ISSA plates that 1) place the images on a common calibration scale and zero level with DIRBE, 2) improve zodiacal light subtraction, and 3) mitigate the effects of striping.
May 12, 2005 The IRAS Mid Infrared Galaxy Atlas has been augmented with 1540 new images between 14 and 68 deg galactic longtitude and between -3 and +3 deg galactic latitude.
March 31, 2005 Atlas is now serving data from the GLIMPSE (Galactic Legacy Infrared Midplane Survey Extraordinaire) and SDSS_DR3 (Sloan Digital Sky Survey) projects.
February 4, 2005

First Delivery of the Spitzer Data from "The Formation and Evolution of Planetary Systems: Placing Our Solar System in Context" (FEPS) Legacy Project are now available.

The COSMOS archive is now serving data from the VLA, XMM, ACS and WFPC.

December 21, 2004 First Delivery of the Spitzer data from the " From Molecular Cores to Planet-Forming Disks" (c2d) Legacy Project, are available using spatial and visualization tools.
November 8 , 2004

The MSXC6 point source catalog and rejects are now available through Gator.

The Mid-Infrared Galatic Atlas and the Extended Infrared Galaxy Atlas now have expanded spatial coverage.

A front end to the Spectral and Image Scrapbook housed at MAST is now available.

November 1 , 2004 Spitzer Reserved Observation Catalog Visualizer v6.0 released.
October 22, 2004 Publicly available data from the Spitzer Space Telescope can now be accessed using IRSA's spatial queries and visualization tools.
October 7, 2004 An interactive dust extinction service is now available that uses the maps of Schlegel, Finkbeiner and Davis to return extinction along the line of sight through the Galaxy.
September 14, 2004

The 2MASS Image Services that allow access to the full-fidelity Atlas Images from the All-Sky Release are now available.

The SWAS 9th Data Release is now available. New data in this release are described here.

The 2MASS All-Sky Statistical Analysis tool has been released.

March 22, 2004

RADAR v2.0 represents a significant upgrade from its first v1.0 release. It has a cleaner, more intuitive user interface (RADAR front page). The user may resolve a target name or coordinate position, or run an inventory on a defined region of the sky. The inventory results page includes minor functionality improvements. The data collection page includes table summaries that are more descriptive and user friendly. All of the IRSA data holdings are now fully accessible through RADAR and its data collection manager. The help documentation has been modified accordingly.

In Atlas v1.4, five new data collections have been added: IRTS, SWIRE, Scrapbook, FLS: NOAO Extragalactic R-band data, and NOAO ELAIS N1 R-band data. The previous FirstLook has been renamed FLS_VLA.

January 7, 2004 IRSA announces the release of RADAR v1.0, an IRSA inventory and data exploration service.
December 15, 2003

In Atlas v1.3, three new data collections have been added: Midcourse Space Experiment (MSX), Spitzer Space Telescope Reserved Observation Catalog Atlas (ROC) and the Spitzer First Look Survey -- Ancillary VLA Data (FirstLook).

New features include a background scaling factor for some datasets in order to better represent the output source overlays and a number of bug fixes. This version also contains software infrastructure changes so that the Spitzer Archive can easily connect to the IRSA Spitzer-related datasets, using Atlas. Please see the change history for more information.

October 10, 2003 Version 1.0 of Atlas serves the following data sets: GOODS, Lockman Hole, IGA, EIGA, MIGA, ISSA, LGA, SWS, and NED. Datasets served through Atlas are also accessible from the Mission pages.
August 12, 2003 Observations from the SWAS 7th data release are now available on the SWAS Spectrum Server page.
June 24, 2003 2MASS All Sky Image Services are available. This service supersedes the 2MASS All-Sky Quicklook Image Server, which will be decomissioned on September 1, 2003.
June 24, 2003 We have replaced the IRSA email system with a ticket-based system. It will enable us to provide better and faster support to users. Please use this instead of the IRSA email system. Thank you.
May 13, 2003 Observations from the SWAS 6th data release are now available on the SWAS Spectrum Server page. See the New Features link to learn about substantial upgrades to this server
March 26, 2003 2MASS All Sky Catalogs and Extended Source Image Server available.
March 6, 2003 IRAS documentation now includes the Explanatory Supplement to the Serendipitous Survey Catalog.
February 24, 2003 Preliminary deep (6x) 2MASS observations of the Lockman Hole are now available. Click here for details.
January 29, 2003 IRSA has released version 2.0 of the SIRTF FirstLook Survey, which supports a mosaic of 35 VLA pointings taken during 2001 and 2002, representing 240 hours in B-array at 1.4 GHz.
January 28, 2003 IRAS documentation now includes on-line Small Scale Structure Catalog.
January 27, 2003 Version 3.0 of the MSX Image Server has been released. Version 3.0 serves data from the IRAS Gaps, galaxies and star formation regions.
January 27, 2003 The 2MASS Large Galaxy Atlas is now available to the public. The Atlas is comprised of over 500 of the largest galaxies imaged by 2MASS. The data products include mosaic images (FITS format), jpeg previews, plots, and source characterization measurements (e.g., astrometry, photometry, orientation, etc), and incorporates the final 2MASS reprocessing calibration.
December 3, 2002 All of our web pages have been updated and redesigned.
October 7, 2002 Release of Oasis v2.0. Many IRSA service results pages now include links to send data to Oasis, a multi-archive data fusion JAVA client.
September 30, 2002 Release of the 2MASS All-Sky Image Server, delivering Quicklook images from the 2MASS All-Sky Release.
July 29, 2002 The IRAS Documentation has been updated and is now served by IRSA. The IRAS Explanatory Supplement and ISSA Explanatory Supplement have also been updated, and search engines installed on each.
July 26, 2002 Release of the SWAS Spectrum Server. Version 1.0.5 delivers spectra from the July 2002 (5th) public release of data from the Submillimeter Wave Astronomical Satellite (SWAS).
June 12, 2002 Release of the SWAS Spectrum Server. Version 1.0.4 delivers spectra from the April 2002 (4th) public release of data from the Submillimeter Wave Astronomical Satellite (SWAS).
February 19, 2002 Release of ISO Visualizer. Version 1.0 is a tool for displaying ISO observations on the sky and for providing links to the ISO postcard server, housed at Vilspa, Spain. Data downloads should still be made through the ISO archive interface.
February 5, 2002 Release of the SIRTF First Look Survey of Ancillary VLA data. Version 1.0 provides access to a VLA image mosaic centered at 17h18m 59d30m, and to a listing of roughly 2000 radio components found within this image.
January 30, 2002 Release of the SWAS Spectrum Server. Version 1.0 delivers spectra from the August 2001 public release of data from the Submillimeter Wave Astronomical Satellite (SWAS). It includes an interactive plotting applet for visualization of the spectra (Java 1.3 required).
January 29, 2002 Release of the IRAS Scan Processing and Integration service. Version 5.0 of Scanpi allows it to be run from the IRSA web page. Please note: the x-windows version will be decommissioned on February 28, 2002. The batch mode will still be supported until it is incorporated into the web version in late Spring, 2002.
November 5, 2001 Release of 2MASS Batch Image Server V2.0
November 5, 2001 Release of MSX v2.0
September 12, 2001 Release of the On-Line Archive Science Information Services (OASIS), a Java applet for data fusion and exploration. It provides access to data from IRSA (IPAC), NED (IPAC), VizieR (CDS), DSS (STScI), VLA FIRST (LLNL) and NVSS (NRAO). Two innovative features are the ability to read and display image files of arbitrarily large size, and the ability to perform contour overlays under user control.
August 8, 2001 Release of 2MASS Batch Image Server v1.3. The download volume per service call increased from 100 MB to 150 MB.
June 13, 2001

Release of Version 1.2 of MSX that corrects a defect whereby a request for an image in the range l=359.25 to 360.00 returned the image at l=358.5 and not l=0".

Release of Gator v1.2 with minor upgrades. Data returned is unaffected.

Release of 2MASS Batch Image Server v1.1 with minor upgrades. Data returned is unaffected.

May 1, 2001 IRSA has decomissioned CatScan as of May 1, 2001. This query-builder engine has been replaced with Gator.
April 3, 2001 Release of Version 1.0 of Gator: IRSA has released its new query engine, Gator. This query-builder replaces Catscan, which will be decommissioned on May 1, 2001. Gator correctly handles colors when the values of either or both of the individual magnitudes are "null" values (this defect was reported to users in a previous notice).
April 3, 2001 Release of Version 1.0 of the 2MASS Batch Image Server: IRSA has released the 2MASS Batch Image Server. It delivers 2MASS Atlas or compressed images covering user-specified regions of the sky. All images are returned in FITS formats and put in a gzipped tar file for delivery to the user.
April 3, 2001 IRSA System Rebuild: IRSA has rebuilt its system from the ground up. Users will find performance more robust with upgrades to underlying libraries. Interfaces for services remain unchanged.
April 3, 2001 Release of Version 1.1 of the 2MASS Statistical Analysis Tool: Improvements to documentation; functionality is unchanged.
September 6, 2000 Version 1.1 of the MSX Image Server released
July 17, 2000 Image A2685N15.FIT reprocessed by the MSX Science Team and now accessible
June 28, 2000 The IRSA web site gets a new look.
June 27, 2000 MSX catalog and image data released
June 8, 2000 New statistical analysis tool estimates number of 2MASS sources in a specified area.