?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Consolidation+of+surface+charging+analyses+on+the+Ariel+payload+dielectrics+in+the+early+transfer+orbit+and+L2+space+environments&rft.creator=Focardi%2C+Mauro&rft.creator=Michelagnoli%2C+Marianna&rft.creator=Pudney%2C+Maxsim&rft.creator=Renouf%2C+Ian&rft.creator=Merola%2C+Pierpaolo&rft.creator=Carbonaro%2C+Luca&rft.creator=Noce%2C+Vladimiro&rft.creator=Vela+Nu%C3%B1ez%2C+Marina&rft.creator=Bolli%2C+Pietro&rft.creator=Nesti%2C+Renzo&rft.creator=Chiarucci%2C+Simone&rft.creator=Dinuzzi%2C+Giacomo&rft.creator=Tommasi%2C+Elisabetta&rft.creator=De+Persio%2C+Fulvio&rft.creator=Salatti%2C+Mario&rft.creator=Brienza%2C+Daniele&rft.creator=Piazzolla%2C+Raffaele&rft.creator=Morgante%2C+Gianluca&rft.creator=Pace%2C+Emanuele&rft.creator=Preti%2C+Giampaolo&rft.creator=Micela%2C+Giuseppina&rft.creator=Malaguti%2C+Giuseppe&rft.creator=Caldwell%2C+Andrew&rft.creator=Eccleston%2C+Paul&rft.creator=Tinetti%2C+Giovanna&rft.description=Ariel+(Atmospheric+Remote+Sensing+Infrared+Exoplanet+Large+Survey)+%5B1%5D+%5B2%5D+is+the+fourth+Mission+(M4)+of+the+ESA%E2%80%99s+Cosmic+Vision+Program+2015-2025%2C+selected+in+March+2018+and+officially+adopted+in+November+2020+by+the+Agency%2C+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%E2%80%99s+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%2C+radiation%2C+etc.).+An+injection+trajectory+is+foreseen+with+a+single+passage+through+the+Van+Allen+radiation+belts+(LEO%2C+MEO+and+GEO+near-Earth+environments).+This+is+approximated+by+a+worst-case+half+orbit%2C+prior+the+injection+and+transfer+to+L2%2C+with+a+duration+of+10.5+hours%2C+a+perigee+of+300+km+(LEO)%2C+an+apogee+of+64000+km+(GEO+and+beyond)%2C+and+an+inclination+close+to+0+degrees.+During+both+the+injection+trajectory+and+the+final+orbit+around+L2%2C+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%E2%80%99s+magnetosheath+with+passages+through+the+magnetotail.+These+three+environments%2C+along+with+LEO+and+GEO%2C+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)%2C+potentially+endangering+the+whole+Payload+integrity+and+telecommunications+to+Ground.&rft.publisher=Society+of+Photo-Optical+Instrumentation+Engineers+(SPIE)&rft.contributor=Coyle%2C+Laura+E&rft.contributor=Perrin%2C+Marshall+D&rft.contributor=Matsuura%2C+Shuji&rft.date=2024-08-23&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A+Coyle%2C+Laura+E+and+Perrin%2C+Marshall+D+and+Matsuura%2C+Shuji%2C+(eds.)+Proceedings+of+the+Space+Telescopes+and+Instrumentation+2024%3A+Optical%2C+Infrared%2C+and+Millimeter+Wave.++(pp.+p.+122).++Society+of+Photo-Optical+Instrumentation+Engineers+(SPIE)+(2024)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10197939%2F7%2FTinetti_Consolidation%2520of%2520surface%2520charging%2520analyses%2520on%2520the%2520Ariel%2520payload%2520dielectrics%2520in%2520the%2520early%2520transfer%2520orbit%2520and%2520L2%2520space%2520environments_poster_VoR.pdf&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10197939%2F8%2FTinetti_Consolidation%2520of%2520surface%2520charging%2520analyses%2520on%2520the%2520Ariel%2520payload%2520dielectrics%2520in%2520the%2520early%2520transfer%2520orbit%2520and%2520L2%2520space%2520environments_paper_VoR.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10197939%2F&rft.rights=open