WMAP DR1 I Maps (Individual Differencing Assemblies)
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/
0.23° - 0.93° (frequency dependent)
Iterative algorithms are used to create skymaps from the calibrated differential time-ordered WMAP data for each of the ten differencing assemblies. Each pixel in a map represents a sky temperature for the bandpass appropriate to the differencing assembly. The CMB dipole has been removed and the zero point of each map has been set using a Galactic csc |b| model (see Bennett et al. below).
The data provided in each map consist of two fields for each pixel:
More details can be found in: