eprintid: 10197939 rev_number: 13 eprint_status: archive userid: 699 dir: disk0/10/19/79/39 datestamp: 2024-10-03 10:16:50 lastmod: 2024-10-03 10:16:50 status_changed: 2024-10-03 10:16:50 type: proceedings_section metadata_visibility: show sword_depositor: 699 creators_name: Focardi, Mauro creators_name: Michelagnoli, Marianna creators_name: Pudney, Maxsim creators_name: Renouf, Ian creators_name: Merola, Pierpaolo creators_name: Carbonaro, Luca creators_name: Noce, Vladimiro creators_name: Vela Nuñez, Marina creators_name: Bolli, Pietro creators_name: Nesti, Renzo creators_name: Chiarucci, Simone creators_name: Dinuzzi, Giacomo creators_name: Tommasi, Elisabetta creators_name: De Persio, Fulvio creators_name: Salatti, Mario creators_name: Brienza, Daniele creators_name: Piazzolla, Raffaele creators_name: Morgante, Gianluca creators_name: Pace, Emanuele creators_name: Preti, Giampaolo creators_name: Micela, Giuseppina creators_name: Malaguti, Giuseppe creators_name: Caldwell, Andrew creators_name: Eccleston, Paul creators_name: Tinetti, Giovanna title: Consolidation of surface charging analyses on the Ariel payload dielectrics in the early transfer orbit and L2 space environments ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F60 note: This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions. abstract: 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 surfaces leading to the risk of Electro Static Discharges (ESD), potentially endangering the whole Payload integrity and telecommunications to Ground. date: 2024-08-23 date_type: published publisher: Society of Photo-Optical Instrumentation Engineers (SPIE) official_url: http://dx.doi.org/10.1117/12.3017998 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2323464 doi: 10.1117/12.3017998 lyricists_name: Tinetti, Giovanna lyricists_id: GTINE95 actors_name: Flynn, Bernadette actors_id: BFFLY94 actors_role: owner full_text_status: public pres_type: paper publication: Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave pagerange: 122-122 event_title: Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave event_location: Yokohama, Japan event_dates: 16th-22nd June 2024 book_title: Proceedings of the Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave editors_name: Coyle, Laura E editors_name: Perrin, Marshall D editors_name: Matsuura, Shuji citation: Focardi, Mauro; Michelagnoli, Marianna; Pudney, Maxsim; Renouf, Ian; Merola, Pierpaolo; Carbonaro, Luca; Noce, Vladimiro; ... Tinetti, Giovanna; + view all <#> Focardi, Mauro; Michelagnoli, Marianna; Pudney, Maxsim; Renouf, Ian; Merola, Pierpaolo; Carbonaro, Luca; Noce, Vladimiro; Vela Nuñez, Marina; Bolli, Pietro; Nesti, Renzo; Chiarucci, Simone; Dinuzzi, Giacomo; Tommasi, Elisabetta; De Persio, Fulvio; Salatti, Mario; Brienza, Daniele; Piazzolla, Raffaele; Morgante, Gianluca; Pace, Emanuele; Preti, Giampaolo; Micela, Giuseppina; Malaguti, Giuseppe; Caldwell, Andrew; Eccleston, Paul; Tinetti, Giovanna; - view fewer <#> (2024) Consolidation of surface charging analyses on the Ariel payload dielectrics in the early transfer orbit and L2 space environments. In: Coyle, Laura E and Perrin, Marshall D and Matsuura, Shuji, (eds.) Proceedings of the Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave. (pp. p. 122). Society of Photo-Optical Instrumentation Engineers (SPIE) Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10197939/7/Tinetti_Consolidation%20of%20surface%20charging%20analyses%20on%20the%20Ariel%20payload%20dielectrics%20in%20the%20early%20transfer%20orbit%20and%20L2%20space%20environments_poster_VoR.pdf document_url: https://discovery.ucl.ac.uk/id/eprint/10197939/8/Tinetti_Consolidation%20of%20surface%20charging%20analyses%20on%20the%20Ariel%20payload%20dielectrics%20in%20the%20early%20transfer%20orbit%20and%20L2%20space%20environments_paper_VoR.pdf