The detector control unit of the fine guidance sensor instrument on-board the ARIEL mission: design status

Focardi, M.; Nunez, Marina Vela; Naponiello, Luca; Lorenzani, A.; Grimoldi, Raoul; Mangraviti, Elio; Carli, Luca; Ber, Kamil; Rataj, M.; Rutkowski, K.; Skup, Konrad; Nita, Przemyslaw; Micela, G.; Malaguti, G.; Auricchio, N.; Pace, E.; Preti, Giampaolo; Pascale, Enzo; Tinetti, Giovanna; Eccleston, Paul; Tommasi, Elisabetta; Salatti, M.; Piazzolla, Raffaele; Bolli, Pietro; Nesti, Renzo; Iuzzolino, M.; Carbonaro, Luca; Vecchio, Ciro Del; Ferruzzi, D.; Miceli, Federico; Brucalassi, Anna; Falcini, G.; Tozzi, A.; Gottini, Daniele

doi:10.1117/12.2628327

Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave 2022

DOI: 10.1117/12.2628327

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The detector control unit of the fine guidance sensor instrument on-board the ARIEL mission: design status

M. Focardi¹,

Marina Vela Nunez

Luca Naponiello

et al.

Abstract: This is a copy of the published version, or version of record, available on the publisher's website. This version does not track changes, errata, or withdrawals on the publisher's site.

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Consolidation of surface charging analyses on the Ariel payload dielectrics in the early transfer orbit and L2 space environments

Focardi,

Michelagnoli,

Pudney

et al. 2024

Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave

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Ariel (Atmospheric Remote Sensing Infrared Exoplanet Large Survey) [1] [2] is the fourth Mission (M4) of the ESA's Cosmic Vision Program 2015-2025, selected in March 2018 and officially adopted in November 2020 by the Agency, whose aim is to characterize the atmospheres of hundreds of diverse exoplanets orbiting nearby different types of stars and to identify the key factors affecting the formation and evolution of planetary systems. The Mission will have a nominal duration of four years and a possible extension of two years at least. Its launch is presently scheduled for mid 2029 from the French Guiana Space Centre in Kourou on board an Ariane 6.2 launcher in a dual launch configuration with Comet Interceptor.The baseline operational orbit of the Ariel is a large amplitude halo orbit around the second Lagrangian (L2) virtual point located along the line joining the Sun and the Earth-Moon system at about 1.5 million km (~236 RE) from the Earth in the anti-Sun direction. Ariel's halo orbit is designed to be an eclipse-free orbit as it offers the possibility of long uninterrupted observations in a fairly stable environment (thermal, radiation, etc.). An injection trajectory is foreseen with a single passage through the Van Allen radiation belts (LEO, MEO and GEO near-Earth environments). This is approximated by a worst-case half orbit, prior the injection and transfer to L2, with a duration of 10.5 hours, a perigee of 300 km (LEO), an apogee of 64000 km (GEO and beyond), and an inclination close to 0 degrees.During both the injection trajectory and the final orbit around L2, Ariel will encounter and interact mainly with the Sun radiation and the space plasma environment. In L2 the Ariel spacecraft will spend most of its time in the direct solar wind and the Earth's magnetosheath with passages through the magnetotail. These three environments, along with LEO and GEO, can lead to the build-up of a net electric charge on the spacecraft and payload conductive and dielectric *

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Consolidation of surface charging analyses on the Ariel payload dielectrics in the early transfer orbit and L2 space environments

Focardi,

Michelagnoli,

Pudney

et al. 2024

Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave

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The Ariel payload electrical and electronic architecture: a summary of the current design and implementation status

Focardi,

Noce,

Merola

et al. 2024

Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave

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Ariel [1] [2] is the M4 mission of the ESA's Cosmic Vision Program 2015-2025, whose aim is to characterize by lowresolution transit spectroscopy the atmospheres of over one thousand warm and hot exoplanets orbiting nearby stars. It has been selected by ESA in March 2018 and adopted in November 2020 to be flown, then, in 2029. It is the first survey mission dedicated to measuring the chemical composition and thermal structures of the atmospheres of hundreds of transiting exoplanets, in order to enable planetary science far beyond the boundaries of the Solar System. The Payload (P/L) is based on a cold section (PLM -Payload Module) working at cryogenic temperatures and a warm section, located within the Spacecraft (S/C) Service Vehicle Module (SVM) and hosting five warm units operated at ambient temperature (253-313 K).The P/L and its electrical, electronic and data handling architecture has been designed and optimized to perform transit spectroscopy from space during primary and secondary planetary eclipses in order to achieve a large set of unbiased observations to shed light and fully understand the nature of exoplanets atmospheres, retrieving information about planets interior and determining the key factors affecting the formation and evolution of planetary systems.

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An overview of the electrical, electronic and on-board data handling architecture of the Ariel Payload

Focardi

2023

2023 European Data Handling &Amp; Data Processing Conference (EDHPC)

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The detector control unit of the fine guidance sensor instrument on-board the ARIEL mission: design status

Abstract: This is a copy of the published version, or version of record, available on the publisher's website. This version does not track changes, errata, or withdrawals on the publisher's site.

Cited by 3 publications

References 1 publication

Consolidation of surface charging analyses on the Ariel payload dielectrics in the early transfer orbit and L2 space environments

Consolidation of surface charging analyses on the Ariel payload dielectrics in the early transfer orbit and L2 space environments

The Ariel payload electrical and electronic architecture: a summary of the current design and implementation status

An overview of the electrical, electronic and on-board data handling architecture of the Ariel Payload

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