WMAP DR3 Data Products

The data made available through this page has been updated. The most recent version of this data may be accessed through https://lambda.gsfc.nasa.gov/product/wmap/current/"

The WMAP skymaps used the HEALPix nested pixel ordering scheme in Galactic coordinates. For the convenience of users who do not have HEALPix software installed, we provide a series of FITS sky map files that give the sky coordinates of each pixel center for various resolutions.

Derived CMB Products
Product
Download Page
Description No. of
Files/Size
TT Power Spectra
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Best estimates for the TT power spectra of the CMB. Both binned and unbinned versions are provided. More...
2 files 3--62KB each
TE Power Spectra
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Best estimates for the TE power spectra of the CMB. Both binned and unbinned versions are provided. More...
2 files 3--62KB each
EE and BB Power Spectra
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Best estimates for the EE and BB power spectra of the CMB. Both binned and unbinned versions are provided. More...
4 files 1--35KB each
Cosmological Parameter Table
Tool to search for WMAP parameter results. More...
N/A
Likelihood Software
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Fortran90 code to compute Fisher and Master matrices, and to compute model likelihood. More...
1 file 382MB
Chain Analysis Software
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Modified version of the CosmoMC getdist program to analyze WMAP Markov Chains More...
1 file 40.3kB
Predicted SZ Power Spectrum
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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 Seven Year Sky Maps
Product
Download Page
Description No. of
Files/Size
I Maps per Differencing Assembly (D/A)
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Temperature (I) maps for each D/A at HEALPix Nside=512 (Res 9) for TT analysis. More...
10 files 24MB each
I Maps per Frequency Band
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Temperature (I) maps for each frequency band at HEALPix Nside=512 (Res 9) for TT analysis. More...
5 files 24MB each
Smoothed I Maps per Differencing Assembly (D/A)
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Temperature (I) maps for each D/A smoothed to 1o resolution at HEALPix Nside=512 (Res 9). More...
10 files 24MB each
Smoothed I Maps per Frequency Band
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Temperature (I) maps for each frequency band smoothed to 1o resolution at HEALPix Nside=512 (Res 9). More...
5 files 24MB each
I,Q,U Maps per Differencing Assembly (D/A)
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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 96MB each
I,Q,U Maps per Frequency Band
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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 96MB each
Smoothed I,Q,U Maps per Frequency Band
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Temperature and polarization (I,Q,U) maps for each frequency band smoothed to 1o resolution at HEALPix Nside=512 (Res 9). More...
5 files 48MB each
Foreground Reduced I,Q,U Maps per Differencing Assembly (D/A)
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Temperature and polarization (I,Q,U) maps for the Q1, Q2, V1, V2, W1, W2, W3, and W4 D/As at HEALPix Nside=512 (Res 9). More...
8 files 48MB each
Foreground Reduced I,Q,U Maps per Frequency Band
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Temperature and polarization (I,Q,U) maps for the Q, V, and W frequency bands at HEALPix Nside=512 (Res 9). More...
3 files 48MB each
I,Q,U,S Maps per Differencing Assembly (D/A)
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Temperature and polarization (I,Q,U,S) maps for each D/A at HEALPix Nside=512 (Res 9) for TT and high-l polarization analysis. More...
10 files 144MB each
I,Q,U,S Maps per Frequency Band
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Temperature and polarization (I,Q,U,S) maps for each frequency band at HEALPix Nside=512 (Res 9) for TT and high-l polarization analysis. More...
5 files 144MB each
Full Resolution Single Year Sky Maps
Product
Download Page
Description No. of
Files/Size
I Maps per Differencing Assembly (D/A)
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Temperature (I) maps for each D/A at HEALPix Nside=512 (Res 9) for TT analysis. More...
50 files 24MB each
High Resolution I Maps per Differencing Assembly (D/A)
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Temperature (I) maps for each D/A at HEALPix Nside=1024 (Res 10) for TT analysis. More...
50 files 96MB each
Foreground Reduced I Maps per Differencing Assembly (D/A)
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Foreground Reduced Temperature (I) maps for each D/A at HEALPix Nside=512 (Res 9) for TT and high-l polarization analysis. More...
40 files 24MB each
High Resolution Foreground Reduced I Maps per Differencing Assembly (D/A)
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Foreground Reduced Temperature (I) maps for each D/A at HEALPix Nside=1024 (Res 10) for TT and high-l polarization analysis. More...
40 files 96MB each
I,Q,U Maps per Differencing Assembly (D/A)
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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...
50 files 96MB each
Foreground Reduced I,Q,U Maps per Differencing Assembly (D/A)
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Foreground Reduced 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...
40 files 96MB each
I,Q,U,S Maps per Differencing Assembly (D/A)
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Temperature and polarization (I,Q,U,S) maps for each D/A at HEALPix Nside=512 (Res 9) for TT and high-l polarization analysis. More...
50 files 144MB each
Reduced Resolution Sky Maps
Product
Download Page
Description No. of
Files/Size
Single Year Q,U Maps per Differencing Assembly (D/A)
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Polarization (Q,U) maps for each D/A at HEALPix Nside=16 (Res 4) degraded from Nside=512 (Res 9). More...
50 files 68kB each
Inverse Covariance Matrices for the Single Year Q,U Maps per Differencing Assembly (D/A)
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Polarization (Q,U) pixel-to-pixel inverse covariance matrices for each D/A at HEALPix Nside=16 (Res 4) degraded from Nside=512 (Res 9). More...
50 files 144.0MB each
Single Year I,Q,U,S Maps per Differencing Assembly (D/A)
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Temperature and Polarization (I,Q,U,S) maps for each D/A at HEALPix Nside=16 (Res 4) degraded from Nside=512 (Res 9). More...
50 files 157.5kB each
Inverse Covariance Matrices for the Single Year I,Q,U,S Maps per Differencing Assembly (D/A)
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Temperature and Polarization (I,Q,U,S) pixel-to-pixel inverse covariance matrices for each D/A at HEALPix Nside=16 (Res 4) degraded from Nside=512 (Res 9). Plain and SVD versions are supplied. More...
100 files 576MB or 1.1GB each
Single Year Foreground Reduced Q,U Maps per Differencing Assembly (D/A)
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Foreground Reduced Polarization (Q,U) maps for selected D/As at HEALPix Nside=16 (Res 4) degraded from Nside=512 (Res 9). More...
45 files 30.9kB each
Inverse Covariance Matrices for the Single Year Foreground Reduced Q,U Maps per Differencing Assembly (D/A)
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Foreground Reduced Polarization (Q,U) pixel-to-pixel inverse covariance matrices for selected D/As at HEALPix Nside=16 (Res 4) degraded from Nside=512 (Res 9). More...
45 files 144.0MB each
Five Year Q,U Maps per Frequency Band
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Polarization (Q,U) maps for selected frequency bands at HEALPix Nside=16 (Res 4) degraded from Nside=512 (Res 9). More...
4 files 30.9kB each
Inverse Covariance Matrices for the Five Year Q,U Maps per Frequency Band
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Polarization (Q,U) pixel-to-pixel inverse covariance matrices for selected frequency bands at HEALPix Nside=16 (Res 4). More...
4 files 144MB each
Five Year Foreground Reduced Q,U Maps per Frequency Band
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Foreground Reduced Polarization (Q,U) maps for selected frequency bands at HEALPix Nside=16 (Res 4) degraded from Nside=512 (Res 9). More...
4 files 30.9kB each
Inverse Covariance Matrices for the Five Year Foreground Reduced Q,U Maps per Frequency Band
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Foreground Reduced Polarization (Q,U) pixel-to-pixel inverse covariance matrices for selected frequency bands at HEALPix Nside=16 (Res 4). More...
4 files 144MB each
Loss Imbalance Templates
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Polarization templates (Q,U) that trace the effect of a small transmission imbalance between the A & B sides of the instrument. One per differencing assembly. More...
10 files, 56kB each
Derived Foreground Products
Product
Download Page
Description No. of
Files/Size
Internal Linear Combination Map
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Reduced-galaxy map produced via linear combination technique. More...
1 file of 24MB
Point Source Catalog
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Catalog of WMAP point sources. More...
1 files of 44.6KB
Point Source Variability Table
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WMAP point source variability. More...
1 files of 201.6KB
Max Entropy Method Foreground Emission Maps
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Maps of foreground synchrotron, free-free, and dust emission for each of the five frequencies derived using the maximum entropy method. More...
15 files of 1.5MB
MCMC-Chain Foreground Maps
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Maps of foreground synchrotron, free-free, and dust emission using an MCMC chain fitting technique. More...
14 files of 1.1MB
MCMC-Chain Foreground Maps - Shifted Spinning Dust Model
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Maps of foreground synchrotron, free-free, and dust emission using an MCMC chain fitting technique that implemented a shifted spinning dust fitting model. More...
13 files of 1.1MB
MCMC-Chain Foreground Maps - Synchrotron Steepening Model
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Maps of foreground synchrotron, free-free, and dust emission using an MCMC chain fitting technique that implemented a steepening synchrotron fitting model. More...
14 files of 1.1MB
Foreground Templates
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Low noise templates for the removal of foreground from skymaps. More...
2 files
Smoothed Single Year K1 and Ka1 Sky Maps
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K1 and Ka1 WMAP maps used with the foreground template to remove foreground emission from skymaps. More...
10 files of 24MB each
Ancillary Data
Product
Download Page
Description No. of
Files/Size
Masks
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Intensity and polarization exclusion masks for analysis and map-making. More...
9 files 6-96MB each
Beam Transfer Functions
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Derived from observations of Jupiter. The beam transfer function is the square root of the window function. More...
10 files 16-44kB each
Beam Maps
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Maps of main and near-sidelobe beam response for the A and B sides of each differencing assembly (D/A). More...
10 files 5.5 MB each
Beam Radial Profiles
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Symmetrized radial beam profiles for each WMAP D/A. More...
10 files 26--51kB each
Far-Sidelobe Beam Maps
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Maps of beam response to signal across the entire sky in spacecraft coordinates for each D/A. More...
10 files 1.5MB each
Bandpass Frequency Response
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Files showing the frequency response of each detector in each radiometer. More...
20 files 7.9kMB each
Time-Ordered Data
Product
Download Page
Description No. of
Files/Size
Calibrated Time-Ordered Data
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Compressed tar files containing the calibrated time-ordered data. More...
92 files 1.7GB each
Uncalibrated Time-Ordered Data
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Compressed tar files containing the raw time-ordered data. More...
92 files, 1.1GB each
Optimal Time-Domain Filters
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Optimal time-domain filters used in the map-making procedure. More...
5 files 4.6MB each

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. Andrew F. Ptak
LAMBDA Director: Dr. Thomas M. Essinger-Hileman
NASA Official: Dr. Thomas M. Essinger-Hileman
Web Curator: Mr. Michael R. Greason