IRIS - Improved Reprocessing of the IRAS Survey

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Download IRIS data and IDL routines

The IRIS data are available in several forms.
  • You can download IRIS data for a specific region of the sky using the IRSA interface at the Infrared Processing and Analysis Center (IRSA).
  • The IRIS data are available on the SkyView server.
  • The IRIS data are also vailable through the Centre de Données astronomiques de Strasbourg (CDS) via Aladin .

  • The data are available on this site in the Healpix format (resolution 1024 and 2048) and in the original ISSA format (430 images of 500x500 pixels - 12.5deg x 12.5 deg - for each band). IRAS has observed most of the sky in three different epoch. Here we provide the images as tar.gz files for the individual epoch (HCON1, HCON2 and HCON3) and the co-added maps (with the original unobserved regions left undefined or filled with DIRBE). All these images can be downloaded from the following table. Most users will want to download the "Co-added maps - no holes".

    WARNING
    2006/07/03 : A few pixels of the nohole maps in Healpix Nside=2048 are undefined (value=-32768).


    Product File Size 12 microns 25 microns 60 microns 100 microns
    Co-added maps - no holes 340 MB IRISNOHOLES_B1H0 IRISNOHOLES_B2H0 IRISNOHOLES_B3H0 IRISNOHOLES_B4H0
    Co-added maps - with holes 340 MB IRIS_B1H0 IRIS_B2H0 IRIS_B3H0 IRIS_B4H0
    HCON1 340 MB IRIS_B1H1 IRIS_B2H1 IRIS_B3H1 IRIS_B4H1
    HCON2 340 MB IRIS_B1H2 IRIS_B2H2 IRIS_B3H2 IRIS_B4H2
    HCON3 260 MB IRIS_B1H3 IRIS_B2H3 IRIS_B3H3 IRIS_B4H3
    Healpix 1024 no hole 49 MB IRIS_nohole_1_1024 IRIS_nohole_2_1024 IRIS_nohole_3_1024 IRIS_nohole_4_1024
    Healpix 2048 no hole 193 MB IRIS_nohole_1_2048 IRIS_nohole_2_2048 IRIS_nohole_3_2048 IRIS_nohole_4_2048

  • Projection software :IDL routines to produce mosaiques of IRIS maps can be dowloaded here. There is a README file in the tar archive that gives instructions on how to install and use the routines. This set of routines requires the ASTRO library

  • Position of each ISSA/IRIS plate