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.

The Planck-LFI instrument : Analysis of the 1/f noise and implications for the scanning strategy / D. Maino, C. Burigana, M. Maltoni, B.D. Wandelt, K.M. Gorski, M. Malaspina, M. Bersanelli, N. Mandolesi, A.J. Banday, E. Hivon. - In: ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES. - ISSN 0365-0138. - 140:3(1999), pp. 383-391. [10.1051/aas:1999429]

The Planck-LFI instrument : Analysis of the 1/f noise and implications for the scanning strategy

D. Maino
;
M. Bersanelli;
1999

Abstract

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.
Cosmology: cosmic microwave background; Methods: data analysis; Space vehicles
Settore FIS/05 - Astronomia e Astrofisica
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/869458
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