Planck early results. III. First assessment of the low frequency instrument in-flight performance

Mennella, Aniello; Bersanelli, Marco; Butler, Reginald Christopher; Curto Martín, Andrés; Cuttaia, Francesco; Davis, Richard J.; Dick, Jason; Frailis, Marco; Galeotta, Samuele; Gregorio, Anna; Kurki-Suonio, Hannu; Martínez González, Enrique; Aja Abelán, Beatriz; Artal Latorre, Eduardo; Barreiro Vilas, Rita Belén; Cruz Rodríguez, Marcos; Diego Rodríguez, José María; Herranz Muñoz, Diego; López-Caniego Alcarria, Marcos; Vielva Martínez, Patricio; Meinhold, Peter R.

doi:10.1051/0004-6361/201116480

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Identificadores

URI: http://hdl.handle.net/10902/1516

DOI: 10.1051/0004-6361/201116480

ISSN: 0004-6361

ISSN: 1432-0746

Fecha

2011-12

Derechos

Publicado en

Astronomy and Astrophysics, 2011, 536, A3

Editorial

EDP Sciences

Enlace a la publicación

http://dx.doi.org/10.1051/0004-6361/201116480

Palabras clave

Cosmic background radiation

Cosmology: observations

Space vehicles: instruments

Instrumentation: detectors

Resumen/Abstract

The scientific performance of the Planck Low Frequency Instrument (LFI) after one year of in-orbit operation is presented. We describe the main optical parameters and discuss photometric calibration, white noise sensitivity, and noise properties. A preliminary evaluation of the impact of the main systematic effects is presented. For each of the performance parameters, we outline the methods used to obtain them from the flight data and provide a comparison with pre-launch ground assessments, which are essentially confirmed in flight.