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WMAP

The data made available through this page has been updated. The most recent version of this data may be accessed through /product/map/current/

Whe WMAP sky maps are generated using the HEALPix sky pixelization scheme. The first file listed for each map contains the data in its native HEALPix format. For the convenience of users who do not require the capabilities that HEALPix offers, we also provide the maps in two projected image formats: Mollweide and Zenith Equal Area (ZEA). These files contain the string "_mollweide" and "_zea" respectively, and may be displayed with standard astronomical display software such as DS9 and SAOImage. Note that the image pixels typically over-sample the HEALPix pixels, thus some amount of data replication will be present in the image data. As a result, care must be taken when using the image data in a regime where the noise properties are important since the statistical weight per pixel will also be replicated.

Recommended download procedure for '.fits' or '.tar.gz' files:
right click on the file name and save. For more information on the use of Dataset IDs,
see the LAMBDA Products Overview.

WMAP Seven Year Smoothed I Sky Maps Per Frequency Band
Description
Dataset Id
File Info
File Name
Delivery Date
All files listed in this table.
ADS/Sa.WMAP#band_smth_imap_r9_sevenyear_v4.tar.gz
107.28 MB
wmap_band_smth_imap_r9_sevenyear_v4.tar.gz
wmap_mollweide_band_smth_imap_r9_sevenyear_v4.tar.gz
wmap_zea_band_smth_imap_r9_sevenyear_v4.tar.gz
2009-11-24
K Band For the Full Seven Years of Data
ADS/Sa.WMAP#band_smth_imap_r9_7yr_K_v4.fits
24.01 MB
FITS Hdr
wmap_band_smth_imap_r9_7yr_K_v4.fits
wmap_mollweide_band_smth_imap_r9_7yr_K_v4.fits
wmap_zea_band_smth_imap_r9_7yr_K_v4.fits
2009-11-24
Ka Band For the Full Seven Years of Data
ADS/Sa.WMAP#band_smth_imap_r9_7yr_Ka_v4.fits
24.01 MB
FITS Hdr
wmap_band_smth_imap_r9_7yr_Ka_v4.fits
wmap_mollweide_band_smth_imap_r9_7yr_Ka_v4.fits
wmap_zea_band_smth_imap_r9_7yr_Ka_v4.fits
2009-11-24
Q Band For the Full Seven Years of Data
ADS/Sa.WMAP#band_smth_imap_r9_7yr_Q_v4.fits
24.01 MB
FITS Hdr
wmap_band_smth_imap_r9_7yr_Q_v4.fits
wmap_mollweide_band_smth_imap_r9_7yr_Q_v4.fits
wmap_zea_band_smth_imap_r9_7yr_Q_v4.fits
2009-11-24
V Band For the Full Seven Years of Data
ADS/Sa.WMAP#band_smth_imap_r9_7yr_V_v4.fits
24.01 MB
FITS Hdr
wmap_band_smth_imap_r9_7yr_V_v4.fits
wmap_mollweide_band_smth_imap_r9_7yr_V_v4.fits
wmap_zea_band_smth_imap_r9_7yr_V_v4.fits
2009-11-24
W Band For the Full Seven Years of Data
ADS/Sa.WMAP#band_smth_imap_r9_7yr_W_v4.fits
24.01 MB
FITS Hdr
wmap_band_smth_imap_r9_7yr_W_v4.fits
wmap_mollweide_band_smth_imap_r9_7yr_W_v4.fits
wmap_zea_band_smth_imap_r9_7yr_W_v4.fits
2009-11-24

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