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/

Derived CMB Products

Derived CMB Products
Product Download Page	Description	No. Of Files/Size	Format	Images
TT Power Spectra	Best estimates for the TT power spectra of the CMB. Both binned and unbinned versions are provided. More...	2 files 4--59kB each	ASCII
TE Power Spectra	Best estimates for the TE power spectra of the CMB. Both binned and unbinned versions are provided. More...	2 files 2--32kB each	ASCII
EE & BB Power Spectra	Best estimate of the EE & BB power spectra binned for plotting.	1 file 2KB	ASCII
TB & EB Power Spectra	Best estimates for the TB and EB power spectra of the CMB, unbinned for analysis. More...	2 files 15 KB each	ASCII	N/A
Cosmological Parameter Table	Tool to search for WMAP parameter results More...	N/A	ASCII	N/A
Likelihood software	Fortran90 code to compute Fisher and Master matrices, and to compute model likelihood More...	1 file 324.4MB	TAR BALL	N/A
Predicted SZ Power Spectrum	The angular power spectrum due to the Sunyaev-Zeldovich effect, as predicted by Komatsu & Seljak (2002). Results for each of the 5 WMAP observing frequencies are given.	1 file 694KB	ASCII	N/A

Full Resolution Coadded Three Year Sky Maps

Full Resolution Coadded Three Year Sky Maps
Product Download Page	Description	No. Of Files/Size	Format	Images
I, Q, U Maps per Differencing Assembly (D/A)	Temperature and polarization (I, Q, U) maps for each D/A at HEALPix Nside=512 (Res 9) for TT and high-l polarization analysis. More...	10 files 48MB each	FITS
I-Only Maps per D/A	Temperature (I) maps for each D/A at HEALPix Nside=512 (Res 9) for TT. More...	10 files 24MB each	FITS
I, Q, U Maps per Frequency Band	Temperature and polarization (I, Q, U) maps for each frequency band at HEALPix Nside=512 (Res 9) for TT and high-l polarization analysis. More...	5 files 48MB each	FITS
I-Only Maps per Frequency Band	Temperature (I) maps for each frequency band at HEALPix Nside=512 (Res 9) for TT. More...	5 files 24MB each	FITS
Foreground Reduced I, Q, U Maps per D/A	Foreground Reduced I, Q, U maps for each D/A at HEALPix Nside=512 (Res 9) for TT and high-l polarization analysis. More...	8 files 48MB each	FITS
Foreground Reduced I, Q, U Maps per Frequency Band	Foreground Reduced I, Q, U maps for each frequency band at HEALPix Nside=512 (Res 9) for TT and high-l polarization analysis. More...	3 files 48MB each	FITS
Smoothed I Maps per Frequency Band	I maps for each frequency band smoothed to 1o resolution at HEALPix Nside=512 (Res 9). More...	5 files 24MB each	FITS

Full Resolution Single Year Sky Maps

Full Resolution Single Year Sky Maps
Product Download Page	Description	No. Of Files/Size	Format	Images
I, Q, U Maps per Differencing Assembly (D/A)	Temperature and polarization (I, Q, U) maps for each D/A at HEALPix Nside=512 (Res 9) for TT and high-l polarization analysis. More...	30 files 96MB each	FITS
I-Only Maps per D/A	Temperature (I) maps for each D/A at HEALPix Nside=512 (Res 9) for TT. More...	30 files 24MB each	FITS
Foreground Reduced I, Q, U Maps per D/A	Foreground Reduced I, Q, U maps for each D/A at HEALPix Nside=512 (Res 9) for TT and high-l polarization analysis. More...	24 files 96MB each	FITS
High Resolution I Maps per D/A	Temperature (I) maps for each V and W band D/A at HEALPix Nside=1024 (Res 10) for high-l TT. More...	18 files 96MB each	FITS
Foreground Reduced High Resolution I Maps per D/A	Foreground Reduced Temperature (I) maps for each V and W band D/A at HEALPix Nside=1024 (Res 10) for high-l TT. More...	18 files 96MB each	FITS

Reduced Resolution Sky Maps

Reduced Resolution Sky Maps
Product Download Page	Description	No. Of Files/Size	Format	Images
I, Q, U, S Single Year Coadded Maps per Differencing Assembly (D/A)	Temperature and polarization (I, Q, U, S) full sky maps for each D/A at HEALPix Nside=16 (Res 4), degraded from Nside=512 (Res 9). More...	30 files 158kB each	FITS
Inverse Covariance Matrices for the I, Q, U, S Single Year Maps per D/A	Pixel-to-pixel inverse covariance matrices for each D/A at HEALPix Nside=16 (Res 4) More...	30 files 576MB each	FITS	N/A
I, Q, U, S Three Year Coadded Maps per Frequency Band	Temperature and polarization (I, Q, U, S) full sky maps for each Frequency Band at HEALPix Nside=16 (Res 4), degraded from Nside=512 (Res 9). More...	5 files 158kB each	FITS
Inverse Covariance Matrices for the I, Q, U, S Three Year Maps per Frequency Band	Pixel-to-pixel inverse covariance matrices for each Frequency Band at HEALPix Nside=16 (Res 4) More...	5 files 576MB each	FITS	N/A
Q, U Foreground Reduced Three Year Maps per Frequency Band (Q,V only)	Foreground Reduced polarization (Q,U) maps for selected frequency bands at HEALPix Nside=16 (Res 4) for low-l polarization analysis. More...	3 files 56KB each	FITS
Inverse Covariance Matrices for the Q, U Foreground Reduced Three Year Maps per Frequency Band (Q,V only)	Foreground Reduced polarization (Q,U) pixel-to-pixel inverse covariance matrices for selected frequency bands at HEALPix Nside=16 (Res 4) More...	3 files 144MB each	FITS	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...	1 file 24MB	FITS
Point Source Catalog	Catalog of WMAP point sources. More...	1 file 34KB	ASCII
Max Entropy Method Foreground Emission Maps	Maps of foreground synchrotron, free-free, and dust emission for each of the five frequencies derived using the maximum entropy method. More...	16 files 6MB each	FITS
Foreground Templates	Low noise templates for the removal of the foreground from skymaps. More...	1 file 24MB	FITS	N/A

Ancillary Data

Ancillary Data
Product Download Page	Description	No. Of Files/Size	Format	Images
Masks	Intensity and polarization exclusion masks for analysis and map-making. More...	10 files 25-96MB 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 13-34kB each	ASCII
Beam Maps	Maps of main and near-sidelobe beam response for the A and B sides of each differencing assembly (D/A). More...	10 files 5.6MB each	FITS
Beam Radial Profiles	Symmetrized radial beam profiles for each WMAP D/A. More...	10 files 10-26kB each	ASCII	N/A
Far-Sidelobe Beam Maps	Maps of beam response to signal across the entire sky in spacecraft coordinates for each D/A. More...	10 files 1.6MB each	FITS	N/A