WMAP Data Products

The data made available through this page has been updated. The most recent version of this data may be accessed through /product/map/current/

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CALIBRATED SKY MAPS
CALIBRATED SKY MAPS
Product
Download Page		 Description No. Of
Files/Size		 Format Images
I Maps (Individual Differencing Assemblies) Temperature maps for each of ten differencing assemblies. More... 10 files 25 MB each FITS I Map Image
I Maps (per frequency) Temperature maps for each of five frequencies. More... 5 files 25 MB each FITS I Map Image #2
Smoothed I Maps (per frequency) Temperature maps at each frequency, smoothed to a common resolution. Useful for foreground analyses. More... 5 files25 MB each FITS
Foreground Cleaned I Maps Q, V and W band temperature maps from which template foregrounds have been removed. More... 8 files 25 MB each FITS N/A

DERIVED CMB PRODUCTS
DERIVED CMB PRODUCTS
Product
Download Page		 Description No. Of
Files/Size		 Format Images
Combined TT Power Spectrum (includes binned version) Best estimate of the temperature angular power spectrum of the CMB. Both binned and unbinned versions of the spectrum are provided. More... 2 files <= 53 KB each ASCII
28 TT Cross-Power Spectra(Q1xQ2, Q2xV1 , W3xW4,...) Power spectra forming the basis of the combined TT power spectrum. More... 1 file 325 KB FITS N/A
TE Power Spectrum (includes binned version) Best estimate of the temperature polarization angular power spectrum of the CMB. More... 2 files <=16 KB each ASCII image
Likelihood code FORTRAN90 code to compute Fisher matrices and model likelihood. More... 1 file 3 MB ASCII N/A
Theoretical LCDM Power Spectra Selected theoretical power spectra fit to WMAP data in combination with other datasets. More... 6 files <200 KB each ASCII
FITS 		N/A
Temperature Correlation Function Two-point temperature correlation function derived from the WMAP ILC map. More... 1 file 17 KB ASCII N/A

DERIVED FOREGROUND PRODUCTS
DERIVED FOREGROUND PRODUCTS
Product
Download Page		 Description No. Of
Files/Size		 Format Images
Internal Linear Combination Map (includes region definition map) Reduced-galaxy map produced via linear combination technique. More... 2 files 25 MB each FITS
Synchrotron Maps (Max Entropy Method) Derived maps of foreground synchrotron emission for each of 5 frequencies. More... 5 files 6 MB each FITS
Free-Free Maps (Max Entropy Method) Derived maps of foreground free-free emission for each of 5 frequencies. More... 5 files 6 MB each FITS
Dust Maps (Max Entropy Method) Derived maps of foreground dust emission for each of 5 frequencies. More... 5 files 6 MB each FITS
Point Source Catalog Catalog of WMAP point sources. More... 1 file 26 KB ASCII

ANCILLARY DATA
ANCILLARY DATA
Product
Download Page		 Description No. Of
Files/Size		 Format Images
Intensity Masks Exclusion masks applied to temperature maps for purposes of analysis or map-making. More... 4 files 25 MB each FITS
Far-Sidelobe Maps Maps of beam response to signal beyond the Ruze radius, for each differencing assembly More... 10 files 1.6 MB each FITS N/A
Beam Maps Maps of main and near-sidelobe beam response for the A and B sides of each differencing assembly. More... 10 files 1 MB each FITS
Beam Transfer Functions Derived from observations of Jupiter. The beam transfer function is the square root of the window function. More... 10 files ~20 KB each ASCII
Beam Radial Profiles Symmetrized radial beam profiles for each WMAP differencing assembly. More... 10 files ~10 KB each ASCII N/A

TIME-ORDERED DATA
TIME-ORDERED DATA
Product
Download Page		 Description No. Of
Files/Size		 Format Images
Calibrated Time-Ordered Data (archive with attitude, etc.) Tar files containing up to ten FITS files; each of these contains one day of data. More... 37 files ~470 MB each FITS N/A

SIMULATED DATA
SIMULATED DATA
Product
Download Page		 Description No. Of
Files/Size		 Format Images
Simulated Noise Maps 110 sky maps containing simulated instrument noise for each WMAP differencing assembly. More... 60 files 440 MB each FITS N/A

THIRD-PARTY PRODUCTS
THIRD-PARTY PRODUCTS
Product
Download Page		 Description No. Of
Files/Size		 Format Images
LILC Reduced-Foreground Map Reduced galaxy map produced by Eriksen et al. using a variant of the ILC algorithm that employs a Lagrange multiplier, hence LILC. More... 1 file 12 MB FITS N/A
Simulated LILC Maps An ensemble of simulated LILC maps, transformed to harmonic space, produced by Eriksen et al. for use with error analyses of the real LILC map. More... 2 files 130 MB each FITS N/A
TOH Reduced-Foreground Map Reduced-galaxy map produced by Tegmark et al. using a multi-frequency combination technique. More... 2 files 12.3 MB each FITS toh_image

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Goddard Space Flight Center, National Aeronautics and Space Administration
HEASARC Director: Dr. Alan P. Smale
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