WMAP DR4 Foreground Reduced Single Year Sky Maps Per Differencing Assembly

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/"

When 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 High Res. Single Year Temperature Sky Maps Per Differencing Assembly
Description
Dataset Id
File Info
File Name
Delivery Date
All files listed in this table.
ADS/Sa.WMAP#forered_imap_r10_singleyear_v4.tar.gz
4.35 GB wmap_forered_imap_r10_singleyear_v4.tar.gz
wmap_mollweide_forered_imap_r10_singleyear_v4.tar.gz
wmap_zea_forered_imap_r10_singleyear_v4.tar.gz
2009-11-24
Q1 For the First Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr1_Q1_v4.fits
96.01 MB wmap_forered_imap_r10_yr1_Q1_v4.fits
wmap_mollweide_forered_imap_r10_yr1_Q1_v4.fits
wmap_zea_forered_imap_r10_yr1_Q1_v4.fits
Fits Header
2009-11-24
Q1 For the Second Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr2_Q1_v4.fits
96.01 MB wmap_forered_imap_r10_yr2_Q1_v4.fits
wmap_mollweide_forered_imap_r10_yr2_Q1_v4.fits
wmap_zea_forered_imap_r10_yr2_Q1_v4.fits
Fits Header
2009-11-24
Q1 For the Third Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr3_Q1_v4.fits
96.01 MB wmap_forered_imap_r10_yr3_Q1_v4.fits
wmap_mollweide_forered_imap_r10_yr3_Q1_v4.fits
wmap_zea_forered_imap_r10_yr3_Q1_v4.fits
Fits Header
2009-11-24
Q1 For the Fourth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr4_Q1_v4.fits
96.01 MB wmap_forered_imap_r10_yr4_Q1_v4.fits
wmap_mollweide_forered_imap_r10_yr4_Q1_v4.fits
wmap_zea_forered_imap_r10_yr4_Q1_v4.fits
Fits Header
2009-11-24
Q1 For the Fifth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr5_Q1_v4.fits
96.01 MB wmap_forered_imap_r10_yr5_Q1_v4.fits
wmap_mollweide_forered_imap_r10_yr5_Q1_v4.fits
wmap_zea_forered_imap_r10_yr5_Q1_v4.fits
Fits Header
2009-11-24
Q1 For the Sixth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr6_Q1_v4.fits
96.01 MB wmap_forered_imap_r10_yr6_Q1_v4.fits
wmap_mollweide_forered_imap_r10_yr6_Q1_v4.fits
wmap_zea_forered_imap_r10_yr6_Q1_v4.fits
Fits Header
2009-11-24
Q1 For the Seventh Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr7_Q1_v4.fits
96.01 MB wmap_forered_imap_r10_yr7_Q1_v4.fits
wmap_mollweide_forered_imap_r10_yr7_Q1_v4.fits
wmap_zea_forered_imap_r10_yr7_Q1_v4.fits
Fits Header
2009-11-24
Q2 For the First Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr1_Q2_v4.fits
96.01 MB wmap_forered_imap_r10_yr1_Q2_v4.fits
wmap_mollweide_forered_imap_r10_yr1_Q2_v4.fits
wmap_zea_forered_imap_r10_yr1_Q2_v4.fits
Fits Header
2009-11-24
Q2 For the Second Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr2_Q2_v4.fits
96.01 MB wmap_forered_imap_r10_yr2_Q2_v4.fits
wmap_mollweide_forered_imap_r10_yr2_Q2_v4.fits
wmap_zea_forered_imap_r10_yr2_Q2_v4.fits
Fits Header
2009-11-24
Q2 For the Third Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr3_Q2_v4.fits
96.01 MB wmap_forered_imap_r10_yr3_Q2_v4.fits
wmap_mollweide_forered_imap_r10_yr3_Q2_v4.fits
wmap_zea_forered_imap_r10_yr3_Q2_v4.fits
Fits Header
2009-11-24
Q2 For the Fourth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr4_Q2_v4.fits
96.01 MB wmap_forered_imap_r10_yr4_Q2_v4.fits
wmap_mollweide_forered_imap_r10_yr4_Q2_v4.fits
wmap_zea_forered_imap_r10_yr4_Q2_v4.fits
Fits Header
2009-11-24
Q2 For the Fifth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr5_Q2_v4.fits
96.01 MB wmap_forered_imap_r10_yr5_Q2_v4.fits
wmap_mollweide_forered_imap_r10_yr5_Q2_v4.fits
wmap_zea_forered_imap_r10_yr5_Q2_v4.fits
Fits Header
2009-11-24
Q2 For the Sixth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr6_Q2_v4.fits
96.01 MB wmap_forered_imap_r10_yr6_Q2_v4.fits
wmap_mollweide_forered_imap_r10_yr6_Q2_v4.fits
wmap_zea_forered_imap_r10_yr6_Q2_v4.fits
Fits Header
2009-11-24
Q2 For the Seventh Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr7_Q2_v4.fits
96.01 MB wmap_forered_imap_r10_yr7_Q2_v4.fits
wmap_mollweide_forered_imap_r10_yr7_Q2_v4.fits
wmap_zea_forered_imap_r10_yr7_Q2_v4.fits
Fits Header
2009-11-24
V1 For the First Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr1_V1_v4.fits
96.01 MB wmap_forered_imap_r10_yr1_V1_v4.fits
wmap_mollweide_forered_imap_r10_yr1_V1_v4.fits
wmap_zea_forered_imap_r10_yr1_V1_v4.fits
Fits Header
2009-11-24
V1 For the Second Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr2_V1_v4.fits
96.01 MB wmap_forered_imap_r10_yr2_V1_v4.fits
wmap_mollweide_forered_imap_r10_yr2_V1_v4.fits
wmap_zea_forered_imap_r10_yr2_V1_v4.fits
Fits Header
2009-11-24
V1 For the Third Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr3_V1_v4.fits
96.01 MB wmap_forered_imap_r10_yr3_V1_v4.fits
wmap_mollweide_forered_imap_r10_yr3_V1_v4.fits
wmap_zea_forered_imap_r10_yr3_V1_v4.fits
Fits Header
2009-11-24
V1 For the Fourth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr4_V1_v4.fits
96.01 MB wmap_forered_imap_r10_yr4_V1_v4.fits
wmap_mollweide_forered_imap_r10_yr4_V1_v4.fits
wmap_zea_forered_imap_r10_yr4_V1_v4.fits
Fits Header
2009-11-24
V1 For the Fifth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr5_V1_v4.fits
96.01 MB wmap_forered_imap_r10_yr5_V1_v4.fits
wmap_mollweide_forered_imap_r10_yr5_V1_v4.fits
wmap_zea_forered_imap_r10_yr5_V1_v4.fits
Fits Header
2009-11-24
V1 For the Sixth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr6_V1_v4.fits
96.01 MB wmap_forered_imap_r10_yr6_V1_v4.fits
wmap_mollweide_forered_imap_r10_yr6_V1_v4.fits
wmap_zea_forered_imap_r10_yr6_V1_v4.fits
Fits Header
2009-11-24
V1 For the Seventh Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr7_V1_v4.fits
96.01 MB wmap_forered_imap_r10_yr7_V1_v4.fits
wmap_mollweide_forered_imap_r10_yr7_V1_v4.fits
wmap_zea_forered_imap_r10_yr7_V1_v4.fits
Fits Header
2009-11-24
V2 For the First Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr1_V2_v4.fits
96.01 MB wmap_forered_imap_r10_yr1_V2_v4.fits
wmap_mollweide_forered_imap_r10_yr1_V2_v4.fits
wmap_zea_forered_imap_r10_yr1_V2_v4.fits
Fits Header
2009-11-24
V2 For the Second Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr2_V2_v4.fits
96.01 MB wmap_forered_imap_r10_yr2_V2_v4.fits
wmap_mollweide_forered_imap_r10_yr2_V2_v4.fits
wmap_zea_forered_imap_r10_yr2_V2_v4.fits
Fits Header
2009-11-24
V2 For the Third Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr3_V2_v4.fits
96.01 MB wmap_forered_imap_r10_yr3_V2_v4.fits
wmap_mollweide_forered_imap_r10_yr3_V2_v4.fits
wmap_zea_forered_imap_r10_yr3_V2_v4.fits
Fits Header
2009-11-24
V2 For the Fourth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr4_V2_v4.fits
96.01 MB wmap_forered_imap_r10_yr4_V2_v4.fits
wmap_mollweide_forered_imap_r10_yr4_V2_v4.fits
wmap_zea_forered_imap_r10_yr4_V2_v4.fits
Fits Header
2009-11-24
V2 For the Fifth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr5_V2_v4.fits
96.01 MB wmap_forered_imap_r10_yr5_V2_v4.fits
wmap_mollweide_forered_imap_r10_yr5_V2_v4.fits
wmap_zea_forered_imap_r10_yr5_V2_v4.fits
Fits Header
2009-11-24
V2 For the Sixth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr6_V2_v4.fits
96.01 MB wmap_forered_imap_r10_yr6_V2_v4.fits
wmap_mollweide_forered_imap_r10_yr6_V2_v4.fits
wmap_zea_forered_imap_r10_yr6_V2_v4.fits
Fits Header
2009-11-24
V2 For the Seventh Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr7_V2_v4.fits
96.01 MB wmap_forered_imap_r10_yr7_V2_v4.fits
wmap_mollweide_forered_imap_r10_yr7_V2_v4.fits
wmap_zea_forered_imap_r10_yr7_V2_v4.fits
Fits Header
2009-11-24
W1 For the First Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr1_W1_v4.fits
96.01 MB wmap_forered_imap_r10_yr1_W1_v4.fits
wmap_mollweide_forered_imap_r10_yr1_W1_v4.fits
wmap_zea_forered_imap_r10_yr1_W1_v4.fits
Fits Header
2009-11-24
W1 For the Second Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr2_W1_v4.fits
96.01 MB wmap_forered_imap_r10_yr2_W1_v4.fits
wmap_mollweide_forered_imap_r10_yr2_W1_v4.fits
wmap_zea_forered_imap_r10_yr2_W1_v4.fits
Fits Header
2009-11-24
W1 For the Third Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr3_W1_v4.fits
96.01 MB wmap_forered_imap_r10_yr3_W1_v4.fits
wmap_mollweide_forered_imap_r10_yr3_W1_v4.fits
wmap_zea_forered_imap_r10_yr3_W1_v4.fits
Fits Header
2009-11-24
W1 For the Fourth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr4_W1_v4.fits
96.01 MB wmap_forered_imap_r10_yr4_W1_v4.fits
wmap_mollweide_forered_imap_r10_yr4_W1_v4.fits
wmap_zea_forered_imap_r10_yr4_W1_v4.fits
Fits Header
2009-11-24
W1 For the Fifth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr5_W1_v4.fits
96.01 MB wmap_forered_imap_r10_yr5_W1_v4.fits
wmap_mollweide_forered_imap_r10_yr5_W1_v4.fits
wmap_zea_forered_imap_r10_yr5_W1_v4.fits
Fits Header
2009-11-24
W1 For the Sixth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr6_W1_v4.fits
96.01 MB wmap_forered_imap_r10_yr6_W1_v4.fits
wmap_mollweide_forered_imap_r10_yr6_W1_v4.fits
wmap_zea_forered_imap_r10_yr6_W1_v4.fits
Fits Header
2009-11-24
W1 For the Seventh Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr7_W1_v4.fits
96.01 MB wmap_forered_imap_r10_yr7_W1_v4.fits
wmap_mollweide_forered_imap_r10_yr7_W1_v4.fits
wmap_zea_forered_imap_r10_yr7_W1_v4.fits
Fits Header
2009-11-24
W2 For the First Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr1_W2_v4.fits
96.01 MB wmap_forered_imap_r10_yr1_W2_v4.fits
wmap_mollweide_forered_imap_r10_yr1_W2_v4.fits
wmap_zea_forered_imap_r10_yr1_W2_v4.fits
Fits Header
2009-11-24
W2 For the Second Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr2_W2_v4.fits
96.01 MB wmap_forered_imap_r10_yr2_W2_v4.fits
wmap_mollweide_forered_imap_r10_yr2_W2_v4.fits
wmap_zea_forered_imap_r10_yr2_W2_v4.fits
Fits Header
2009-11-24
W2 For the Third Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr3_W2_v4.fits
96.01 MB wmap_forered_imap_r10_yr3_W2_v4.fits
wmap_mollweide_forered_imap_r10_yr3_W2_v4.fits
wmap_zea_forered_imap_r10_yr3_W2_v4.fits
Fits Header
2009-11-24
W2 For the Fourth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr4_W2_v4.fits
96.01 MB wmap_forered_imap_r10_yr4_W2_v4.fits
wmap_mollweide_forered_imap_r10_yr4_W2_v4.fits
wmap_zea_forered_imap_r10_yr4_W2_v4.fits
Fits Header
2009-11-24
W2 For the Fifth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr5_W2_v4.fits
96.01 MB wmap_forered_imap_r10_yr5_W2_v4.fits
wmap_mollweide_forered_imap_r10_yr5_W2_v4.fits
wmap_zea_forered_imap_r10_yr5_W2_v4.fits
Fits Header
2009-11-24
W2 For the Sixth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr6_W2_v4.fits
96.01 MB wmap_forered_imap_r10_yr6_W2_v4.fits
wmap_mollweide_forered_imap_r10_yr6_W2_v4.fits
wmap_zea_forered_imap_r10_yr6_W2_v4.fits
Fits Header
2009-11-24
W2 For the Seventh Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr7_W2_v4.fits
96.01 MB wmap_forered_imap_r10_yr7_W2_v4.fits
wmap_mollweide_forered_imap_r10_yr7_W2_v4.fits
wmap_zea_forered_imap_r10_yr7_W2_v4.fits
Fits Header
2009-11-24
W3 For the First Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr1_W3_v4.fits
96.01 MB wmap_forered_imap_r10_yr1_W3_v4.fits
wmap_mollweide_forered_imap_r10_yr1_W3_v4.fits
wmap_zea_forered_imap_r10_yr1_W3_v4.fits
Fits Header
2009-11-24
W3 For the Second Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr2_W3_v4.fits
96.01 MB wmap_forered_imap_r10_yr2_W3_v4.fits
wmap_mollweide_forered_imap_r10_yr2_W3_v4.fits
wmap_zea_forered_imap_r10_yr2_W3_v4.fits
Fits Header
2009-11-24
W3 For the Third Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr3_W3_v4.fits
96.01 MB wmap_forered_imap_r10_yr3_W3_v4.fits
wmap_mollweide_forered_imap_r10_yr3_W3_v4.fits
wmap_zea_forered_imap_r10_yr3_W3_v4.fits
Fits Header
2009-11-24
W3 For the Fourth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr4_W3_v4.fits
96.01 MB wmap_forered_imap_r10_yr4_W3_v4.fits
wmap_mollweide_forered_imap_r10_yr4_W3_v4.fits
wmap_zea_forered_imap_r10_yr4_W3_v4.fits
Fits Header
2009-11-24
W3 For the Fifth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr5_W3_v4.fits
96.01 MB wmap_forered_imap_r10_yr5_W3_v4.fits
wmap_mollweide_forered_imap_r10_yr5_W3_v4.fits
wmap_zea_forered_imap_r10_yr5_W3_v4.fits
Fits Header
2009-11-24
W3 For the Sixth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr6_W3_v4.fits
96.01 MB wmap_forered_imap_r10_yr6_W3_v4.fits
wmap_mollweide_forered_imap_r10_yr6_W3_v4.fits
wmap_zea_forered_imap_r10_yr6_W3_v4.fits
Fits Header
2009-11-24
W3 For the Seventh Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr7_W3_v4.fits
96.01 MB wmap_forered_imap_r10_yr7_W3_v4.fits
wmap_mollweide_forered_imap_r10_yr7_W3_v4.fits
wmap_zea_forered_imap_r10_yr7_W3_v4.fits
Fits Header
2009-11-24
W4 For the First Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr1_W4_v4.fits
96.01 MB wmap_forered_imap_r10_yr1_W4_v4.fits
wmap_mollweide_forered_imap_r10_yr1_W4_v4.fits
wmap_zea_forered_imap_r10_yr1_W4_v4.fits
Fits Header
2009-11-24
W4 For the Second Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr2_W4_v4.fits
96.01 MB wmap_forered_imap_r10_yr2_W4_v4.fits
wmap_mollweide_forered_imap_r10_yr2_W4_v4.fits
wmap_zea_forered_imap_r10_yr2_W4_v4.fits
Fits Header
2009-11-24
W4 For the Third Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr3_W4_v4.fits
96.01 MB wmap_forered_imap_r10_yr3_W4_v4.fits
wmap_mollweide_forered_imap_r10_yr3_W4_v4.fits
wmap_zea_forered_imap_r10_yr3_W4_v4.fits
Fits Header
2009-11-24
W4 For the Fourth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr4_W4_v4.fits
96.01 MB wmap_forered_imap_r10_yr4_W4_v4.fits
wmap_mollweide_forered_imap_r10_yr4_W4_v4.fits
wmap_zea_forered_imap_r10_yr4_W4_v4.fits
Fits Header
2009-11-24
W4 For the Fifth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr5_W4_v4.fits
96.01 MB wmap_forered_imap_r10_yr5_W4_v4.fits
wmap_mollweide_forered_imap_r10_yr5_W4_v4.fits
wmap_zea_forered_imap_r10_yr5_W4_v4.fits
Fits Header
2009-11-24
W4 For the Sixth Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr6_W4_v4.fits
96.01 MB wmap_forered_imap_r10_yr6_W4_v4.fits
wmap_mollweide_forered_imap_r10_yr6_W4_v4.fits
wmap_zea_forered_imap_r10_yr6_W4_v4.fits
Fits Header
2009-11-24
W4 For the Seventh Year of Data
ADS/Sa.WMAP#forered_imap_r10_yr7_W4_v4.fits
96.01 MB wmap_forered_imap_r10_yr7_W4_v4.fits
wmap_mollweide_forered_imap_r10_yr7_W4_v4.fits
wmap_zea_forered_imap_r10_yr7_W4_v4.fits
Fits Header
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. Andrew F. Ptak
LAMBDA Director: Dr. Thomas M. Essinger-Hileman
NASA Official: Dr. Thomas M. Essinger-Hileman
Web Curator: Mr. Michael R. Greason