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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/

The 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 Foreground Reduced Five Year IQU Sky Maps Per Differencing Assembly
Description
Dataset Id
File Info
File Name
Delivery Date
All the files in this table
ADS/Sa.WMAP#forered_iqumap_r9_fiveyear_v3.tar.gz
354.08 MB
wmap_forered_iqumap_r9_fiveyear_v3.tar.gz
2008-03-05
Q1 map for all five years
ADS/Sa.WMAP#forered_iqumap_r9_5yr_Q1_v3.fits
48.01 MB
FITS Hdr
wmap_forered_iqumap_r9_5yr_Q1_v3.fits
wmap_mollweide_forered_iqumap_r9_5yr_Q1_v3.fits
wmap_zea_forered_iqumap_r9_5yr_Q1_v3.fits
2008-03-05
Q2 map for all five years
ADS/Sa.WMAP#forered_iqumap_r9_5yr_Q2_v3.fits
48.01 MB
FITS Hdr
wmap_forered_iqumap_r9_5yr_Q2_v3.fits
wmap_mollweide_forered_iqumap_r9_5yr_Q2_v3.fits
wmap_zea_forered_iqumap_r9_5yr_Q2_v3.fits
2008-03-05
V1 map for all five years
ADS/Sa.WMAP#forered_iqumap_r9_5yr_V1_v3.fits
48.01 MB
FITS Hdr
wmap_forered_iqumap_r9_5yr_V1_v3.fits
wmap_mollweide_forered_iqumap_r9_5yr_V1_v3.fits
wmap_zea_forered_iqumap_r9_5yr_V1_v3.fits
2008-03-05
V2 map for all five years
ADS/Sa.WMAP#forered_iqumap_r9_5yr_V2_v3.fits
48.01 MB
FITS Hdr
wmap_forered_iqumap_r9_5yr_V2_v3.fits
wmap_mollweide_forered_iqumap_r9_5yr_V2_v3.fits
wmap_zea_forered_iqumap_r9_5yr_V2_v3.fits
2008-03-05
W1 map for all five years
ADS/Sa.WMAP#forered_iqumap_r9_5yr_W1_v3.fits
48.01 MB
FITS Hdr
wmap_forered_iqumap_r9_5yr_W1_v3.fits
wmap_mollweide_forered_iqumap_r9_5yr_W1_v3.fits
wmap_zea_forered_iqumap_r9_5yr_W1_v3.fits
2008-03-05
W2 map for all five years
ADS/Sa.WMAP#forered_iqumap_r9_5yr_W2_v3.fits
48.01 MB
FITS Hdr
wmap_forered_iqumap_r9_5yr_W2_v3.fits
wmap_mollweide_forered_iqumap_r9_5yr_W2_v3.fits
wmap_zea_forered_iqumap_r9_5yr_W2_v3.fits
2008-03-05
W3 map for all five years
ADS/Sa.WMAP#forered_iqumap_r9_5yr_W3_v3.fits
48.01 MB
FITS Hdr
wmap_forered_iqumap_r9_5yr_W3_v3.fits
wmap_mollweide_forered_iqumap_r9_5yr_W3_v3.fits
wmap_zea_forered_iqumap_r9_5yr_W3_v3.fits
2008-03-05
W4 map for all five years
ADS/Sa.WMAP#forered_iqumap_r9_5yr_W4_v3.fits
48.01 MB
FITS Hdr
wmap_forered_iqumap_r9_5yr_W4_v3.fits
wmap_mollweide_forered_iqumap_r9_5yr_W4_v3.fits
wmap_zea_forered_iqumap_r9_5yr_W4_v3.fits
2008-03-05

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