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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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Derived CMB Products
Derived CMB Products
Product
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Description No. Of
Files/Size
EE & BB Power Spectra Best estimate of the EE & BB power spectra binned for plotting. 1 file 2KB
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
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
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
Cosmological Parameter Table Tool to search for WMAP parameter results More... N/A
Likelihood software Fortran90 code to compute Fisher and Master matrices, and to compute model likelihood More... 1 file 324.4MB
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

Full Resolution Coadded Three Year Sky Maps
Full Resolution Coadded Three Year Sky Maps
Product
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Description No. Of
Files/Size
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
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
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
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
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
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
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

Full Resolution Single Year Sky Maps
Full Resolution Single Year Sky Maps
Product
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Description No. Of
Files/Size
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
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
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
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
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

Reduced Resolution Sky Maps
Reduced Resolution Sky Maps
Product
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Description No. Of
Files/Size
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
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
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
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
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
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

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... 1 file 24MB
Point Source Catalog Catalog of WMAP point sources. More... 1 file 34KB
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
Foreground Templates Low noise templates for the removal of the foreground from skymaps. More... 1 file 24MB

Ancillary Data
Ancillary Data
Product
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Description No. Of
Files/Size
Masks Intensity and polarization exclusion masks for analysis and map-making. More... 10 files 25-96MB each
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
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
Beam Radial Profiles Symmetrized radial beam profiles for each WMAP D/A. More... 10 files 10-26kB each
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

Time-Ordered Data
Time-Ordered Data
Product
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Description No. Of
Files/Size
Calibrated Time-Ordered Data Compressed tar files containing the calibrated time-ordered data. More... 55 files 1.7GB each
Uncalibrated Time-Ordered Data Compressed tar files containing the raw time-ordered data. More... 55 files 1.7GB each
Filtered Calibrated Time-Ordered Data Compressed tar files containing the filtered calibrated time-ordered data. More... 55 files 1.7GB each
Optimal Time-Domain Filters Optimal time-domain filters used in the map-making procedure. More... 3 files 4MB each

Third Party Products
Third Party Products
Product
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Description No. Of
Files/Size
Low-l Likelihood Software Code and data from Eriksen et al. used to estimate the low-l TT likelihood using a Blackwell-Rao estimator in conjunction with pre-computed Gibbs samples. More... 5 files

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A service of the HEASARC and of the Astrophysics Science Division at NASA/GSFC
Goddard Space Flight Center, National Aeronautics and Space Administration
HEASARC Director: Dr. Alan P. Smale
LAMBDA Director: Dr. Eric R. Switzer
NASA Official: Dr. Eric R. Switzer
Web Curator: Mr. Michael R. Greason