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 Maps (per frequency)	Temperature maps for each of five frequencies. More...	5 files 25 MB each	FITS
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
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

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