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

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

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

ANCILLARY DATA
ANCILLARY DATA
Product
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Description No. Of
Files/Size
Intensity Masks Exclusion masks applied to temperature maps for purposes of analysis or map-making. More... 4 files 25 MB each
Far-Sidelobe Maps Maps of beam response to signal beyond the Ruze radius, for each differencing assembly More... 10 files 1.6 MB each
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
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
Beam Radial Profiles Symmetrized radial beam profiles for each WMAP differencing assembly. More... 10 files ~10 KB each

TIME-ORDERED DATA
TIME-ORDERED DATA
Product
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Description No. Of
Files/Size
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

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

THIRD-PARTY PRODUCTS
THIRD-PARTY PRODUCTS
Product
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Description No. Of
Files/Size
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
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
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

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