Free Access
Astron. Astrophys. Suppl. Ser.
Volume 140, Number 3, December II 1999
Page(s) 383 - 391
Published online 15 December 1999
DOI: 10.1051/aas:1999429

Astron. Astrophys. Suppl. Ser. 140, 383-391

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

D. Maino1 - C. Burigana2 - M. Maltoni2,3,4 - B.D. Wandelt5 - K.M. Górski5,6,7 - M. Malaspina2 - M. Bersanelli8 - N. Mandolesi2 - A.J. Banday9 - E. Hivon10

Send offprint request:

1 - SISSA, International School for Advanced Studies, Via Beirut 2-4, I-34014 Trieste, Italy
2 - Istituto TeSRE, Consiglio Nazionale delle Ricerche, Via Gobetti 101, I-40129 Bologna, Italy
3 - Dipartimento di Fisica, Universitá di Ferrara, Via Paradiso 12, I-44100 Ferrara, Italy
4 - INFN, Sezione di Ferrara, Via Paradiso 12, I-44100 Ferrara, Italy
5 - TAC, Theoretical Astrophysics Center, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark
6 - ESO, European Southern Observatory, Karl-Schwarzschild Str. 2, D-85748, Garching, Germany
7 - Warsaw University Observatory, Warsaw, Poland
8 - IFC, Consiglio Nazionale delle Ricerche, Via Bassini 15, I-20133 Milano, Italy
9 - MPA, Max Planck Inst. für Astrophysik, Karl-Schwarzschild Str. 1, D-85740, Garching, Germany
10 - CalTech, California Institute of Technology, 1200 East California Boulevard, CA-91125, Pasadena, U.S.A.

Received June 4; accepted September 20, 1999


We study the impact of 1/f noise on the PLANCK Low Frequency Instrument (LFI) observations (Mandolesi et al.) 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$^\circ$ (namely $\simeq 85^\circ$) 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$^\circ$ spin-axis precession to maintain a constant solar aspect angle.

Key words: methods: data analysis -- cosmology: cosmic microwave background -- space vehicles

Copyright The European Southern Observatory (ESO)

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.