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The purpose of this reanalysis of the WMAP uncalibrated time ordered data(TOD) was two fold. The first was to reassess the reliability of the detectionof the anisotropies in the official WMAP sky maps of the cosmic microwavebackground (CMB). The second was to assess the performance of a proposedcriterion in avoiding systematic error in detecting a signal of interest. Thecriterion was implemented by testing the null hypothesis that the uncalibratedTOD was consistent with no anisotropies when WMAP's hourly calibrationparameters were allowed to vary. It was shown independently for all 20 WMAPchannels that sky maps with no anisotropies were a better fit to the TOD thanthose from the official analysis. The recently launched Planck satellite shouldhelp sort out this perplexing result.

europhysics letters

Sky maps without anisotropies in the cosmic microwave background are a  better fit to WMAP's uncalibrated time ordered data than the official sky  maps