The Planck-LFI instrument: analysis of the 1/f noise and implications for the scanning strategy
نویسندگان
چکیده
We study the impact of 1/f noise on the Planck Low Frequency Instrument (LFI) observations (Mandolesi et al. 1998) and describe a simple method for removing striping effects from the maps for a number of different scanning strategies. A configuration with an angle between telescope optical axis and spin-axis just less than 90 (namely ≃ 85) shows good destriping efficiency for all receivers in the focal plane, with residual noise degradation < 1 − 2%. In this configuration, the full sky coverage can be achieved for each channel separately with a 5 spin-axis precession to maintain a constant solar aspect angle.
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