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Planck 2018 results: II. Low Frequency Instrument data processing

Akrami, Y; Argüeso, F; Ashdown, M; Aumont, J; Baccigalupi, C; Ballardini, M; Banday, AJ; ... et alia, .; + view all (2020) Planck 2018 results: II. Low Frequency Instrument data processing. Astronomy & Astrophysics , 641 , Article A2. 10.1051/0004-6361/201833293. Green open access

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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.

Type: Article
Title: Planck 2018 results: II. Low Frequency Instrument data processing
Open access status: An open access version is available from UCL Discovery
DOI: 10.1051/0004-6361/201833293
Publisher version: https://doi.org/10.1051/0004-6361/201833293
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions.
Keywords: space vehicles: instruments, methods: data analysis, cosmic background radiation
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics
URI: https://discovery.ucl.ac.uk/id/eprint/10110646
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