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Proceedings Paper

Data analysis of the Planck/LFI ground-test campaign
Author(s): Maurizio Tomasi; Paola Battaglia; Marco Bersanelli; Francesco Cuttaia; Cristian Franceschet; Marco Lapolla; Rodrigo Leonardi; Paolo Leutenegger; Davide Maino; Peter Meinhold; Aniello Mennella; Maurizio Miccolis; Torsti Poutanen; Maria Salmon; Maura Sandri; Luca Stringhetti; Luca Terenzi
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Paper Abstract

The ESA Planck mission is the third generation (after COBE and WMAP) space experiment dedicated to the measurement of the Cosmic Microwave Background (CMB) anisotropies. Planck will map the whole CMB sky using two instruments in the focal plane of a 1.5 m off-axis aplanatic telescope. The High Frequency Instrument (HFI) is an array of 52 bolometers in the frequency range 100-857 GHz, while the Low Frequency Instrument (LFI) is an array of 11 pseudo-correlation radiometric receivers which continuously compare the sky signal with the reference signal of a blackbody at ~ 4.5 K. The LFI has been tested and calibrated at different levels of integration, i.e. on the single units (feed-horns, OMTs, amplifiers, waveguides, etc.), on each integrated Radiometric Chain Assembly (RCA) and finally on the complete instrument, the Radiometric Array Assembly (RAA). In this paper we focus on some of the data analysis algorithms and methods that have been implemented to estimate the instrument performance and calibration parameters. The paper concludes with the discussion of a custom-designed software package (LIFE) that allows to access the complex data structure produced by the instrument and to estimate the instrument performance and calibration parameters via a fully graphical interface.

Paper Details

Date Published: 6 July 2006
PDF: 11 pages
Proc. SPIE 6275, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III, 627512 (6 July 2006); doi: 10.1117/12.671522
Show Author Affiliations
Maurizio Tomasi, Istituto Nazionale di Astrofisica (Italy)
Paola Battaglia, Alcatel/Alenia Spazio (Italy)
Marco Bersanelli, Univ. degli Studi di Milano (Italy)
Francesco Cuttaia, Istituto Nazionale di Astrofisica (Italy)
Cristian Franceschet, Alcatel/Alenia Spazio (Italy)
Marco Lapolla, Alcatel/Alenia Spazio (Italy)
Rodrigo Leonardi, Univ. of California, Santa Barbara (United States)
Paolo Leutenegger, Alcatel/Alenia Spazio (Italy)
Davide Maino, Univ. degli Studi di Milano (Italy)
Peter Meinhold, Univ. of California, Santa Barbara (United States)
Aniello Mennella, Univ. degli Studi di Milano (Italy)
Maurizio Miccolis, Alcatel/Alenia Spazio (Italy)
Torsti Poutanen, Univ. of Helsinki (Finland)
Maria Salmon, Instituto de Física de Cantabria (Spain)
Maura Sandri, Istituto Nazionale di Astrofisica (Italy)
Luca Stringhetti, Istituto Nazionale di Astrofisica (Italy)
Luca Terenzi, Istituto Nazionale di Astrofisica (Italy)


Published in SPIE Proceedings Vol. 6275:
Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III
Jonas Zmuidzinas; Wayne S. Holland; Stafford Withington; William D. Duncan, Editor(s)

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