Planck 2018 results. II. Low frequency instrument data processing

Calabrese, Erminia ORCID: https://orcid.org/0000-0003-0837-0068 2020. Planck 2018 results. II. Low frequency instrument data processing. Astronomy and Astrophysics 641 , A2. 10.1051/0004-6361/201833293

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Abstract

We present a final description of the data-processing pipeline for the Planck Low Frequency Instrument (LFI), implemented for the 2018 data release. Several improvements have been made with respect to the previous release, especially in the calibration process and in the correction of instrumental features such as the effects of nonlinearity in the response of the analogue-to-digital converters. We provide a brief pedagogical introduction to the complete pipeline, as well as a detailed description of the important changes implemented. Self-consistency of the pipeline is demonstrated using dedicated simulations and null tests. We present the final version of the LFI full sky maps at 30, 44, and 70 GHz, both in temperature and polarization, together with a refined estimate of the solar dipole and a final assessment of the main LFI instrumental parameters.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Additional Information:	Erminia Calabrese is a member of the Planck Collaboration
Publisher:	EDP Sciences
ISSN:	0004-6361
Date of First Compliant Deposit:	14 January 2019
Date of Acceptance:	4 September 2018
Last Modified:	15 Nov 2024 16:00
URI:	https://orca.cardiff.ac.uk/id/eprint/118395

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