LUVOIR4thFace-to-FaceSTDTMeeting

JPL,PasadenaCAApril17-18,2017Talkslidesavailableathttp://asd.gsfc.nasa.gov/luvoir/events/

TableofContents

High-LevelMeetingSummary.................................................................................................1Day1(MondayApril17)..................................................................................................................1Day2(TuesdayApril18)..................................................................................................................3

DetailedMinutes....................................................................................................................4Day1(MondayApril17)..................................................................................................................4

MattBolcar:LUVOIRUpdateonArchitectureADesignProcess........................................................8AkiRoberge:IntrotoOutliningtheInterimReport..........................................................................16ExoplanetBreakoutSession..............................................................................................................25CosmicOriginsBreakoutSession......................................................................................................32TechnologyBreakoutSession...........................................................................................................33Post-BreakoutReports......................................................................................................................34

Day2(TuesdayApril18)................................................................................................................42CommunicationsDiscussion..............................................................................................................43ExoplanetsBreakoutSession............................................................................................................53CosmicOriginsBreakoutSession......................................................................................................58TechnologyBreakoutSession...........................................................................................................58

High-LevelMeetingSummary

Day1(MondayApril17)WekickedoffwithwelcomesfromDavidGallagher,JPLAssociateLaboratoryDirectorforStrategicIntegrationandtheSTDTchairs.Wethenhadabout½hourofdiscussionongeneralconcerns(detailsbelow).ThereseemtobesomemisconceptionsinthecommunityabouttheLUOVIR/HabExrelationship,inbothdirections(teamsaremerging,teamsareinconflict).Neitherextremesaretrue;workingrelationshipw/HabExisgood.TheLUVOIRandHabExleadershipteamshavemonthlytag-uptelecons.WewillstartprovidingregularupdatesonthosediscussionsattheLUVOIRSTDTtelecons,whichwillgobacktoweeklystartingMay2.TherewasageneralrequestformoreSTDTparticipationinthepre-workfortheinstrumentdesignruns,whichshouldhappenthroughtheinstrumentteams.SomeSTDTmembersthoughtit’salreadydecidedthatLUVOIRArchitectureBwillbelesstechnologicallyambitiousthanArchitectureA.ThisisaSTDTdecisionthathasn’thappenedyet(willbediscussedstartinglate-summer/fall2017).

NextwehadadetailedupdateondesignprogressforArchitectureAfromMattBolcar,coveringthetelescopeandtheHigh-DefinitionImagerinstrument.Thecoronagraphdesignrunhasfinished,butthereisstillalotofadditionalworktobedoneonthisinstrument.Theengineeringteamwillprovideadetailedupdateinanupcomingtelecon.Thepre-workfortheLUMOSinstrumentisstarting(designruninMay).Afterthecoffeebreak,wehadanintrotooutliningtheInterimReportfromAkiRoberge.Thereportscheduleforthecomingmonths(inreverseorder)appearsinTable1.TheSTDTshavenotyetreceiveddetailedguidanceonreportcontentfromHQ,excepttousetheExoplanetProbe(Exo-CandExo-S)reportsasroughmodels.TheaudienceforthereportsisbothNASAHQandthecommunity,sincethereportswillbemadepublic.Akithenshowedapreliminary,high-level“version0”reportoutlinefortheSTDTtostartworkingon(seetalkslides).Materialon“stateofthefieldin2030s”and“synergieswithLUVOIR-erafacilities”needstoappearinthereportandbecoordinatedwithHabExteam(possiblyallSTDTteams).Afterthelunchbreak,theSTDTbrokeoutintosplintergroupstoworkonrefiningthepreliminaryoutlineandlayingoutthesectionswithinthechapters.Excellentprogresswasmadeandreportedoutattheendoftheday.Table1:InterimReportSchedule

Action Date/Duration Comments

DeliverinterimreporttoHQ EarlyDec2017

Revisewholereportandfinalize MonthofNov Makeitpretty

Figure1:Wordcloudfor4thLUVOIRSTDTmeeting

Reviews MonthofOct Senioradvisors,AerospaceCorp,GSFCredteam

Delivercomplete“reviewer’sdraft” Oct1,2017

STDTreviewofwholereport MidSept? AtSTDTmeeting#6

Finalizecomplete“reviewer’sdraft” MonthofSept Makeitcompleteanduniform

Individualwritingassignmentsdue MidAug

Assessreportprogress July? AtSTDTmeeting#5(jointw/HabEx)

Writing! 3.5months

Finalizereportoutline LateApril StartatSTDTmeeting#4

Day2(TuesdayApril18)Westartedthedaywithawide-rangingdiscussionofLUVOIRcommunications.FirstShawnDomagal-GoldmanshowedadraftofajointLUVOIR/HabExslidewithstatementsoncost(inanutshell,“wedon’tknowyetwhatthesemissionscost,butwillfindout”).Theslidewillbeeditedslightly,senttotheLUVOIRSTDT,andcoordinatedwiththeHabExteam.Oncefinal,itwillbeincorporatedintothestandardLUVOIRslidedecks.Thereisafeelingthatweneedtoupourgameongettingthewordouttothecommunity.IntheCommunicationfolderwithintheGoogleDrive,therearespreadsheetsfor“ConferenceSchedule”and“ColloquiaandSeminars”.Upuntilnow,thesehavebeenlargelyusedtorecordwhatwe’vedone.Nowweneedtoplanmorestrategically,identifyplacesweshouldtalk,andidentifyspeakers.Wealsodiscussedtheneedfor1)astandardslidedeckwithaCORfocusand2)atechnologyslidedeck.MarcPostmanwilladapthistalkfromtheHST/JWST5meetinginVenicefortheCORdeck.MattBolcarwillleaddevelopmentofatechnologyslidedeck.WealsodiscussedbetterpromotionofWFIRSTcoronagraphdevelopmentmilestones(amajoronewasachievedrecently).

TherewillbeabigsplashfortheDecadalStudiesattheJan2018AASmeeting.Wediscussedideasforwhatactivitieswewanttodo.

1. SpecialSessionofLUVOIRtalks.NotonlySTDTmembers.SessionproposaldueMay25.2. Splintermeetingforhands-onworkwithtools(likelastAAS).3. Onewholetable(ortwo)fortheDecadalStudiesattheNASAbooth(insteadofsplit

betweenCORandEXOtableslikelastAAS).4. ToolsdemosonhugetouchscreenatSTScIbooth(likelastAAS).5. “AskmeaboutLUVOIR”buttons.We’llhavetopayfortheseourselves(NASAswag

rules).

Intheinterestsofbetterandmorecompletecommunicationwiththewholeteam,we’vedecidedtogobacktoweeklySTDTtelecons(willbecanceledifthere’snoneedtotalkinaparticularweek).Atthesetelecons,we’llstarthavingamorestandardizedagenda,withregularupdatesonHabExinteractions/discussions.Theteamthenwentintobreakoutsessionsagainforadditionalworkonvarioustopics(polishingreportoutline,planningobservationscenarios,technologytrades,etc.).TheteamachievedthedesiredmeetingdeliverableofadraftInterimReportoutline.ThiswillbecollectedtogetherandpolishedbytheendofApril,thensenttothewholeSTDT.Themeetingendedatnoonwithgroupphotos.Afterlunch,someoftheteamwentonfantastictoursoftheStarshadeLab,theHigh-ContrastImagingTestbed,theMarsYard,andtheSpaceFlightOperationsFacility.

DetailedMinutesCourtesyofGiadaArney

Day1(MondayApril17)DavidGallagher(JPL):Welcomingremarks.Thankyoufortravelingouthere.DebraFischer:WelcometoourF2Fmeeting.Thingsgettingseriousnow.LookingforwardtoresultsofIDLstudies.Planningonoutliningtheinterimreport.BradPeterson:Theworkstartsnow.Let’sgoaroundandhaveeveryoneintroducethemselves.(introductions)Debra:Atplacewe’reat,nothingisfinalized.Brad:Fromcommunitywehearalotofthings.LUVOIRusedtobeassembledinspace.LUVOIRandHabExhavemerged.LUVOIRisgoingtobe100billiondollars.(jokes)Nonetruewehavebeenworkingonmissionarchitectureshavenotmadeanychoicesyet.Thisisaprocessandnot

doneuntilwesayit’sdone.TrytodispelrumorsespeciallyonesthatattachadollarvaluetoLUVOIR.Debra:AkiorJuliecancommentonIDLsandtheyhavedefinedinstrumentinsomeway.Whatdoesthatmeanintermsoflockingon?AkiRoberge:Iwantedtocommentonpointaboutcost.EveryonegetsthisquestionwhengivingLUVOIRtalks.Weshouldgenerateanotherjointslide(HabExandLUVOIR)aboutwhattosaywhenaskedaboutcost.Hopingtoshowincommunicationstomorrow.Seewhatteamthinksaboutlanguage.That’saboutthecostissue.AboutthesignificanceofIDLruns.Interestingquestion.Julie?JulieCrooke:IwanttoacclimateeveryonetotheIDLprocess.We’relearninglessonsalongway.OnethingwewanttoemphasizeisthatgoingintoIDL4-5weeksbeforeiswhenallofthepreworkisdone.Lotsofdecisionsaremade.OncegetintoIDLhavetoletitrunthrough.ThingthatcomesoutofIDLisnotstuckinstone.That’sthebeginningsincethisisaprocess.IDLactuallydoesn’tevengettoeverything.Someinstrumentsarebigandcomplexandwedon’tevengettoalotofthem.EvenforcompetedAO,somepeoplecomethroughanddecidetheywanttrashthewholething.YoucannevertakewhatcomesoutofIDLandsaythat’swhatwe’regoingwith.Wetakeinputandwewanttochangetheprocess.WehadassignedSTDTPIstoinstrumentsbutIwouldrecommenditshouldn’tbejustoneperson.EveryonewhowantstocontributetoIDLrunshouldbecomepartofIDLrunODLs(opticaldesignlabs)thathappenseveralweeksbeforeIDLruns.Suggestpeoplemakethemselvesavailable.Ifyoucan’tmakeitinpersonyoucanmakeitviatelecom.ShawnDomagal-Goldman:YousaidduringIDLrunyouletitrunthrough.Duringrunitselfbecausewehavetogetsomethingoutof3dayperiodsowearegoingtobemorestubborn/resistanttochanges.Julie:ButthingscanchangeafterIDL.Shawn:Yes.WeputourfootdownfortheweekforMatt’ssanity.Aki:IthinkthatmoreparticipationinODLisgood.Istillthinkthatshouldbecoordinatedthroughinstrumentleads.Julie:Wewanttomakesurepeoplehaveopportunitybeforehandtocontribute.Aki:ThroughinstrumentPIs.MarcPostman:ForatleasttwoinstrumentsIDLisdone.Whatisprocessforfollowups?

MattBolcar:We’restartingtorampupLUMOSODLsrightnow.Wecansharetimeanddate.Kevinifyoucanarrangeforpeopletojoin?Willgoupuntilpre-workmeeting.AgreeingwithAkithateverythinggoesthroughinstrumentPI.Marc:WasaskingaboutHDIorcoronagraph.Matt:Goodpoint.IneedtoworkwitheachPIforinstrumentonidentifyingtoppriorityitemstobeaddressed.HavedonealittleofthatonHDI.NeedtotouchbasewithLaurentoncoronagraph.Brad:IDLismeanttoproveasolutionexists.NotnecessarilywhatgoesonLUVOIR.DaveRedding:WhatisplanforarchitectureB?TechchangesbetweenAandB?Aki:IdeathatarchitectureBislesstechnologicallyadvancedisnotadecisionthisgrouphasmade.Manyhaveintuitivelyfeltthat’sgoingtohappenbutthatisn’tfinal.Dave:Oneofthosedecisionsthat’sself-fulfilling.Weneedtodecidenow.Aki:Wecan’tavoiddoingthat.OnlythingdecidedissizeofBis~9m.SometimethisfallwewilldothisforB.Dave:WantmoreengagementforarchitectureB.Aki:Thiswholestudyisreallycompressed.Twoarchitecturesin3yearsnotsoeasy.WecantrytostartdiscussingBalittleearlierthanwhatIhadintheschedule.Julie:Ifyouhavethoughtsyoudon’twanttoforgetforBsendtomeandMattandAki.Dave:Tradeswehavebeenthinkingaboutbuthaven’tputdownonpaper.Debra:JaneisonlineandmaybeotherssoI’dliketohavethemintroducethemselves.(moreintroductions)Debra:Worthtakingaminuteforeveryonetoraiseconcernsorissuesevenifwecan’tdiscussfullynow.Concerns?Marc:BuildinguponexperiencewithWFIRST,vimportantforscientificmembersofteamtoworkcloselywithengineeringfolksandviceversa.Don’thaveengineeringdecisionsw/scienceimplicationsmadewithoutthatcommunication.E.g.Dave’scommentaboutarchitectureBcouldbeokifsciencerationalesupports.

LeeFeinberg:Wehaveworkinggroups.E.g.ultrastableworkinggroup.WehaveinstrumentPIs.Seemstomeorganizationalstructureisthere.Uptopeopletogetinvolvedwithgroupstheywanttobeinvolvedwith.Aki:OnethingwedidchangeisweshiftedtobiweeklySTDTmeetingsandoccasionallythosegetcanceled.Maybenotagreatidea.JointscienceandtechteamisTHISteam.Maybeweneedtogobacktomorefrequentrate.Brad:Probablygoodtimetothinkaboutrampingup.Julie:LetmeaddthatIwanttoemphasizewhatLeesaid.LaurentisPIofcoronagraph,MarcPIofHDI,KevinofLUMOS,etc.FolkswhowantasayintheminstrumentdesignshouldworkthroughPIstogetallinfotoGSFCengineeringteamMuchmorehelpfultohaveinputbeforehand.Aki:Ithinkwehaven’thadenoughSTDTteleconsoverlastcouplemonths.StudyofficevbusywithIDLruns.Iguessweshouldtalkwithworkinggroupleadsandinstrumentgroupleadstohavemoretelecons.LastfewmonthssinceJanuarywhenIDLrunsstarted,atGSFCwehavebarelybeenkeepingheadsabovewater.Thisisallgoodfeedback.Debra:Otherconcerns?KevinFrance:Atdeptcolloquiums,peopleseemtothinkthatthere’ssomeLUVOIR/HabExconflict,andthat’sthefirstthingpeopletalkabout.Theydon’ttalkaboutthescience.Communicationsissue,butthisgoesallthewayfromfacultymemberstovisitors.Thesearepeopleweneedonourside.Brad:We’venotreachedastagewherewecantalkaboutscienceprogram.Wehaveideaswewanttodobutwehavetoquantifythisstuffnow.Shawn:Startingincommsworkinggrouptocomeoutwithproducts.Weneedabigpush.ThinkshouldstartatAGUinDecember,butcertainlybyJanAAS.Brad:GoodtohavebyAGU.CangetfeedbackandfinetuneforAAS.Shawn:Fordraftreportoutlineneedtothinkaboutfiguresandimages.Aki:Weshouldtalkaboutthistomorrowincommunicationssession.StartedworkingwithgraphicspeopleatGSFC.Tomorrowduringcommunicationssessionpeopleshoulddiscusskeygraphics.Weneedtomakealist.Brad:Anythingelse?Otherconcerns?Ok.

MattBolcar:LUVOIRUpdateonArchitectureADesignProcess

• Discussestoplevelparametersofthetwoarchitectures• Showsimagesofnotionaldesignsfront,back,stowedinsideSLS• Sunshieldisnotsymmetricalbecauseofwaydoingpointing

KevinFrance:Whenwetalkedaboutmovingto3mirroranistigmatwetalkedabout4mirrors?Matt:Thereare4mirrors.Kevin:Allinstrumentshavepickoffmirrors.Matt:LUMOSdoesnot.MIcroshutterarrayattelescopefocalplane.Othershavepickoffmirrors.

• FOV10arcminx8arcmin• “fieldofregard”2pisr,anti-sun

Dave:Smallsimpleobscuration?Matt:Notforthisdesign.MaybeBwillbeclosertotwomirrorRCdesign.Marc:Tofollowuponthat,thisisanexamplethatoneofthekillerappsissurveyinglargenumberofstarstofindlargenumberofplants.Ifdesignprecludesthatfromhappening…?Matt:Doesnotprecludeit.SpokentoLaurentandNeil.Theypreferunobscuredofcoursebutnotdefactostatementthatthisprecludeshighyieldstudies.APLCdesignsexistthathavesimilarperformancestosmallunobscured.Shawn:Alsopeopleworkingonthisforvectorvortex.Aki:Centralobscurationmaybefundamentallybadforvectorvortex.LaurentwanttoconfirmAPLCcandealwith?LaurentPueyo:Youtakeahitbutit’snotabigstepfunction.ChrisStark:Asfarasweknowit’sabiggerhittovectorvortex.Lee:Worthexplainingwhywedidsizeofobscurationwedid.Matt:LargecorrectedFOVforinstrumentstoparticipatein.Wearealready24moutfromtelescopeforsecondary.That’saveryscarydistance.Goinglongerbecomesamajorengineeringchallenge.

Dave:Especiallywhensecondaryhasflextures.Matt:Beingstudied.Julie:Wanttoremindfolkswe’recomingupwithfeasibilitypointdesigns.Wearenotadvocatingeitherdesignwegenerateisdesignthatgetsbuilt.Matt:Alsonotwelloptimizeddesigns.Lee:ForreferenceWebbsecondaryis8maway.Hardtohaveacleanroombigenough.MajorchallengeforWebb.

• CoatingsreasonablygoodinfarUVo 65%at105nmo 91%at115nmo 85%115-200nmo 88%200-850nmo 96%850nm–2.5um

• 135squaremeterseffectivecollectingarea• 35nmisdiffractionlimit

Brad:Whatdoesmovingsegmentsdotopower?(edgesensordatatomovemirrorsensors)Matt:Dorequirepowerbutnotmajorpowersink.Lee:Coolestthingaboutpoweraspectisthattheheattheedgesensorsgenerates,therearemultiplexorsarebehindmirrorwhereyouneedheatanyway.Edgesensorssubstituteforheatersandlowerpowerconsumptionforheaterssignificantly.Lee:Youwantalinkagesystemthatactslinear.Plantodemonstrate.Aki:Justtoemphasizemorestrongly,whenIfirstheardyouguysweregoingtomakethisactivemirror,Ithoughtwhat??Butthisisasuperawesomeideathatmightactuallymakethiswholethingfeasible.Atalltimesthistelescopewillbeasperfectlyshapedasitcanbe.Notcorrectedusingphotonsbutreallyfastusingedgesensors.Wanttoemphasizethisreallyreallyrelaxesstabilityrequirements.Dave:Wehaveedgesensorsongroundbasedtelescope.Youneedtoconverttotrueedgemeasurement.Issuesoflinearity,calibration,drift.Havingsensitivemeasurementdoesnotestablishwillworkat10picometerlevel.Let’snotbenaïve.Matt:Iknowneedstobestudied.

Dave:Donotcoverallofdisturbances/driftwewillencounter.Donotmeasuresecondarymirror,notmeasurebackend.Needmultitierapproachtotheproblem.Aki:Weareaware.Thisdealswithmostrapiddisturbances.Matt:onelayerofmanytieredcaketosolvetheproblem.Havemanysystems.Lee:Weareworkingoncontrolarchitecturethatshowsthesedifferentloops.IhaveSPIEpapertoputtogetherfullpicture.Wedounderstandit’sanoverallarchitecture.Ultrastableworkinggroupstartedtalkingaboutit.NickSiegler:Howdifficultforoffaxissecondarymirror?Shawn:Forotherarchitectures?Nick:Wouldhelpwithstarlightsuppression?Matt:Wecanlookintofor9meterarchitecture.OSTlookingat9moffaxis.PersonallyifwewanttoleverageJWST,thatdeploymentschemeforoffaxishasneverdonebefore.Entirelynew.ThiswayifonaxiswecanatleastpointtoJWST.Marc:OtherchallengeisHabEx4moffaxisdesigncan’tfitinto5mfairing.9mwouldnotfit.Julie:Polarizationissues.Shawn:Challengestooffaxisseparatefromcontrollingprimarymirror.Wouldworkforonoroffaxisdesign.MomentwegottoIDLrunwherewedecidedtogowiththis:becauseneedtoheatmirrorwehadallelectronicsinplaceneededtoimplementscheme.Onlyreasonwewouldn’ttryisifwedecidedprimarymirrorwasgoingtobecold.Notconsideringcold.Lee:Wearealreadyat20msecondary.Imagine40msecondary.Bigdriverisdistancetosecondary.Alsopackagingissues.Matt:Systemslevelimpact.Dave:Ihopeissueresolutioncanbedoneinquantitativeway.Ihopetradescanbedonewithintegratedmodelingtools.Matt:Isupport100%butintegratedmodelingtakesalotoftime.Dave:Controlaspects.Veryeffectivewayofcomingupwithsystemthatcanresistdisturbances.Wehavebuiltmodels.Matt:slidesonHDI

• HDIchannels200nm-1um(Nyquistsampledat400nm),1um–2.5um(Nyquistsampledat1.2um)

• Filterwheelsareabout1mindiameter.Big!• Channelselectmechanismhas6elements.• Longexposureinstrument:totalexposuretimesofupto200hours.Composedofmany

200-1000sexposureseach.• 5umpixelsize.Four8192x9192decectorstiled.• H4RGdetector(WFIRSTdetector)

KevinFrance:HowisTRLinformingdecisionsaboutdetectortechtouse?Matt:Organicdecisionmadeinlab.Wentbackandforthacoupletimesondetectors.H4RGTRL6ifnothigher.WanttolimitlowTRLitems.Whensciencedictatesthatpathwegowithitthough.

• 56hoursforhigh-precisionastrometrycalibrationdata.Needtorevisitandseeifthat’sprecisionrequired.

NickCowan:Calibrationneededforeveryobservation?Marc:Astrometricobservationsofexoplanets.Matt:Dependsonstabilityofpixelgeometryofdetector.Debra:Whatcausespixelgeometrytodrift?Matt:Thermalstability.Alsoopticaldistortionneedstobecalibrated.Oncecalibrateopticaldistortionandpixelgeometryknowwhereeverythingelse.Lee:IfIrememberpapersongeometry,needstablesecondarymirrorforlongperiodsoftime.Haven’tspentalotoftimeworryingaboutthat.OlivierGuyon:Anyopticnotinpupilplanewillcreateastrometricdistortion.Weneedcalibrationthatgoestopicometerlevel.Lee:Youhadideaofspotsatprimary.Issueofsecondary.IfwewanttodoastrometryIthinkweneedtocompletethesystemsstory.Matt:BackwheninstrumentsvotedonwehadastrometryinHDIandradialvelocityinONIRS.Wearegettingintothedetails.Wemayneedtomaketradeonwhichismostbeneficial.

Olivier:ForbothastrometryandRVwemaybeinplacewhereit’shardtodoonLUVOIRandmakesmoresensetodoinothermission.Forastrometrywearenotphotonnoiselimited.ForRVyoucouldtradethiswithgroundbased.Aki:Anythingthatcanbedoneongroundorwithanotherfacility,wedon’twanttodoonLUVOIR.Atmomentjusttryingtofindouthowharditwouldbe.Dave:Especiallyifdoneinadvancee.g.RVfortargetselection.Aki:Advantagesnotobvious.MaybeChriscanspeaktothisiftime.Debra:EfficiencyofsurveywithLUVOIRiswhereyoutakehit.Aki:Notasmuchasyouthink?Chris:Knowingwhenandwheretolook?IfyouknowwhatstarsEarthsarearoundandcantimereasonablywellyieldwillnotchangemuch.Efficiencywillchange.Aki:Enhancingratherthanenabling?Chris:Unlessyouconsiderastarshadethenithelpsalot.Marc:Precisionastrometrynotjustusefulforexoplanets.Usefulforpropermotionofgalaxies.Wellcalibratedfocalplanevuseful.NotsameprecisionasdetectingEarth.Multiplescienceapplications.Matt:HighprecisionastrometrycapabilityincludedinIDLstudyforHDI.

• BlockdiagramofHDI• NIRchannelhas3disks.UVIShas4.

Nick:Canyougiveintuitionforwhyfilterwheelslarge?Matt:Lotsoffilters.Drivenbynumberoffiltersanddiameterofpupil.

• Noslidesoncoronagraphyetsincedon’thaveIDLoutputpackageyet.Presentedontelecontwoweeksago.

Marc:in1hourwiththistelescopeyougetto30.5magnitude10sigma.Aki:IwanttoclapforMatt.(applause)Engineeringteamhasbeenfantastic.Matthasworkedreallyhard.

JasonTumlinson:Iwanttoraisegeneralissueofobservingefficiencyandoverheadswiththesehugefilterwheels.Asageneralmatter,howmuchandtowhatextentcanyouconsidertimetomovethesemechanismsthatthisstage?Howlongforsystemtosettledown?Matt:Thisisafantasticquestion.WeattachrequirementstomechanismstoIDL(temperature,actuations,howmuchtimetomakemove,etc).ThoseareinputsweprovidetoIDL.Itrytogetideafromthemabouttrade.Minutesvshours.Whatiscost.UpfrontworkofIDLbenefits.E.g.comingupwithconopsforinstrumentupfront.Whatisatypicalandwhatisastressingobservation.Whatwilltheserequire?Knowingthishelpsmefigureoutrequirementsformotion.Aki:Incaseswherewedon’thavetimetothinkthroughbeforeIDLwecanrevisit.Matt:IDLnotbeallendall.Intermsofstabilityquestionthatcomesafterthefactafterweknowinstrumentworks.Goesthroughwholestructuralmodel.Brad:Iflotsoffilters,whynotjustgodowntotwofilterwheelsthatcounterrotateanddampeachotherout?Matt:Candothat.Startwithlistoffiltersweneedandhowbig.Canstarttoallocatethem.Needtobesmartabouthowtoallocatefilters.Aki:Ifwedidreducenumberoffilterswereducenumberofwheelsbutdon’tmakesmaller.SufficetosayduringIDLonbothchannelswasdecidedtoadditionalwheeltoaccommodatemoresolarsystemfilters.Wewanttohavethose.Matt:Bigwheelsnotproblemunlessdon’tfit.Problemweranintooncoronagraph.Marc:52slotsinUVISand30inNIR.WebbandHSThavethosekindsofnumbers.KarlStapelfeldt:Parallelobservationswithcoronagraph?Deepfields?Matt:Thatisthegoal.Whateverinstrumentisprimeobservertheygettodictatewhatitdoes.Butotherinstrumentscanturnondetectors.Whileobservingwithcoronagraphitcontrolsfinesteeringmirror.Karl:Bafflingrequirements?Straylight?Matt:Thatwillbedonebyindustryteams.Karl:Havetowaitandseeiffits.Matt:HDIisgood.Coronagraphisaworkinprogress.IthinkLUMOSwon’tbeaproblem.

Shawn:CommentonlinefromDaveSchiminovich:Additionalcomplexityisthinkingaboutfineguidance.Kevin:ForB,goingtoaskinstrumentteamstocomeupwithnewdesignsorscaleAdesigns?Matt:Wewillstartbyscaling.Aki:UptoinstrumentteamsandthisgroupingeneralaboutifyouwanttoscalethearchitectureAinstrumentortrysomethingdifferent.AssumedcoronagraphforBwillnotbescaleddownA.Matt:ONIRSwillbenew.LUMOSit’suptoyou.Coronagraphadifferentbeast.Lee:Wewillbein5mshroudforB.Newcyclewillbemuchmorevolumeoriented.Aki:WithAinSLSwehavelotsofmassmargins.Hugeinstrumentvolumesandtonsofmassmargins.Notcasefor5m.Matt:WewillhurtformassandvolumeforB.Aki:WanttotellhowbigHDIis?Matt:It’salittleover1200kg.Aki:Andwestillhavemassmargin!Matt:Let’snotgivethefarmawayAki.Stilllotsofworktobedone.Becausewehavealotofmassmarginwehaven’toptimizedforthat.Marc:Nyquistsamplinghelpsforparallelobservations.Don’twanttodithertelescope.ImagerisNyquistsampledmeansyoudon’tneedtodither.Lee:Needtoditherforcosmicrays?Hotpixels?Marc:Mayjustlivewithitforhotpixels.Lotsofobservationsforcosmicrays.AkI:AtsomepointweshouldprobablyhaveanotherSTDTteleconupdateoncoronagraph.Manyblackboxesstill.Plansforhowtodealwith.Matt:Quickstatusupdateistheopticaldesignfitsintoshroud.Biggestissueismechanismsdidn’tfitwithoutoccultingbeampaths.Thesearefilterwheels.Lotsofthingswewillattempt.Ifthatdoesn’tworkneedtorevisitnumberofelementsinfilterwheels.Thatisonourplatestartingthisweek.

Laurent:Aboutefficiency,whenarewegoingtodiscuss?IsthiswhenwedoMDLwhenallinstrumentstogether?Matt:MDLisconopsforwholeobservatory.Roughobservingpercentagesforeachinstrument.Roughobservingcampaign.Estimateoverheadsforinstruments.Forparticularinstruments,coronagraphhasstartedcomingupwithobservingplan.IrecommendHDIdosame.Aki:Calibrationobservationstoo?Lee:BigdealonWebbisslewtime.OnereasonittakessomuchtimeonWebbiswedidn’twanttoputconstraintsobservationally.Wewillhavegoodsenseofwhichstarswewanttosurvey.Wewon’tneedtodohugeslews.Needtodoworkonfiguringoutourslews.Vdifficulttogimblevheavything.Neverbeendone.Ifourslewrequirement10degreeswouldgreatlyhelpengineeringteam.Chriscantakesomeofhisworkandthinkaboutefficiency.Aki:Travelingsalesmancalculation.Starshadecan’tdohugeslews.Wecanpickasimilaropticalpathtominimizeslewdistances.Karl:10degreesnotenoughfororbitdetermination.45?Matt:45reasonable.Jason:Originalprogramnotwhatwillexecute.RealprogrammorelikeHST:alloverplaceallthetime.Someexposures30sandsome10hours.FinetodotravelingsalesmanproblemonChrisstarsbutifotherastronomersgoingtousewecan’tdothatforall.RhondaMorgan(ExEPStandardsTeam):EXOSIMStravelingsalesmancodealreadydoestheseproblems.Aki:Thatcouldbeuseful.Thanks.Debra:Lifetimeissuesfortheseinstruments?Matt:Nocryogenics.Weassumeeveryinstrument5yearlifetime.Telescopeweareassumingserviceableandworking25+years.Debra:Powersource?Solar?Matt:Assumingsolar.Needtofigureouthowbigwillbe.Sofarpowerbudgetisbigbutnotunreasonable.Aki:Solarpanelscanbeserviced?

Matt:Inprinciple.Everythingonspacecraftsideserviceable.Ontelescopesideinstrumentremovalandreplacement.Nottelescopeitself.Lee:GimbleonWebb.Momentumbuildupandthenneedpropellant.Debra:ThanksMattforfantasticandinformativetalk.Coffeebreaktime.--CoffeeBreak---

AkiRoberge:IntrotoOutliningtheInterimReport

• ForthisF2Fgoalforprimarydeliverablefortomorrowisanoutlinefortheinterimreport.Ideallydowntothesectionlevel.

• Showsscheduleformission.Weneedoutlinedoneforthismonth.• InterimreportdeliveredtoHQinearlyDecember.Nospecificdateyet.InNovember

needto“makeitpretty.”WilllikelytakewholemonthofNov.Octobersetasideforseveralreviews(senioradvisors,AerospaceCorporation,GoddardRedTeamreview).Likelywilltakewholemonth.WorkingbackwardweneedtodeliverreviewersdraftOct12017.WeneedSTDTreviewofwholereportmidSept.FinalizecompletereviewersdraftinmonthofSept:makeitcomplete,uniform.IndividualwritingassignmentsdueMidAug.AssessreportprogressJuly(jointSTDTmeeting5withHabEx).Writingwilltake~2.5months.SofinalizingoutlinelateApril.

Karl:Lotsoflatereviewtimes.Niceifweweredoneifhavetwowholemonthsforreviewsteps.Aki:Iactuallypushedbackfromwhatoriginallyhad.Jason:Scheduleisedgingtowardsaggressive.Aki:Notenoughtime?Toomuch?Jason:MarcandIdeeplyinvolvedinHDSTreport.Asyougetfurtherandfurthertowardsdeadline,numberofpeopleyouwanttohaveowningthedocumentshrinks.Otherthing:needmarginbuiltintoschedule.Whichstepscanweallowtoslip?Aki:ThereisalittlemargininherebutIwon’tcallitoutbecausethenpeoplewilltargetit.Jason:EveryprocessI’vebeeninvolvedwith:reviewerstakemoretimethantheysaytheyneed.Thatgivesustimetokeepworkingoncetheyhavethedraft.Aki:Ifearlierreviewersdonewestartworkingontheirfeedback/revisions.Month=paceofslowestreview.

Julie:I’venevermetascienceteamthatstopsworkingonproductevenaftergiventoreviewteam.Reviewteamjustreviewswhatgiventothem.Shawn:Wearehopingtohavesomeofthesereviewsdoneatmeetingswithreviewerssocancollectdirectfeedback.Weneedtogetadaythatworksforeverybody.Marc:Assessingwhetherthisisaggressiveschedulenotdependsonwhatarecontentsofinterimreportexpectedtobe.Aki:Interestingquestion.Wecantalkaboutnow.Haven’treceivedguidanceyetfromHQaboutreportcontent,length,etc.Justgenericadvicetonotmakeittoolong.WhichIagreewith.Inabsenceofguidanceweneedtomoveforwardbydecidingwhatwewanttodo.IfitmakessenseandwelikeitthenwecanproposethattoHQaswhatwewantthethingtobe.Marc:Afollowupquestionthattiesbacktodiscussionearlieronproofofconceptinstruments.Ifforinstanceaproofofconceptinstrumentdoesn’thaveacertaincapabilitydoesthatmeaninsciencecasewearenotallowedtotalkaboutthat?Isthattrueornot?Brad:Needtobespecificaboutwhicharchitecturediscussing.Aki:Thescienceofbotharchitectureswecantalkabout.Needtobecarefulaboutmatchingupspecificquantitiestospecificarchitecture.Marc:Imagingnotdonewith9mbutscalableto9m.Notallowedtotalkabout?Aki:Ifcanincludethatinasensiblefashion,shouldincludeit.Shawn:re.IFUdiscussion,wemaywanttosayifwedidhaveIFUonboardinappendix,thisiswhatitwouldbuyus,thisistechrequiredtogetscienceonboard.Maybeaseriesofdeltasnotthingsweneedtocloseonmissiontohappenbutimprovementsonbaselinedesign.Aki:Needtoemphasizethatthere’sabitofanalacartemenu.Canimagineswappinginstrumentsuites.Nick:Re.length.Whoisaudience?Julie:Headquarters.MarioPerez:Aboutguidance,nextmeetingoneofthemaintopicswillbetoprovidecontentandscheduleforinterimreport.IfyouworkedonExo-CandS,youcanseedifferencebetweenthosetwoandwhatwasaddedinbetweeninterimandfinal.Thatmayprovideguidancetothisteaminabsenceofanythingofficialyet.Aboutreview,HQgroup.SinceLUVOIRandOSTbothhavesenioradvisorygroup,HQwillprobablynotreviewsciencecontentsincealreadyhave

goodreviewbythosepeople.Dependingonreviewthatyoudo,bothOSTandLUVOIRmayhavedifferentreview:focusonimplementation.Aki:AslongaswegetfullvalueofHQattentiononsomearea.Mario:Ifwecalledateamtodoareviewwouldbevsimilartoyoursenioradvisorygroup.Aerospacecorporation.MaybewecalldifferentgroupfromAerospacetodoindependentreview.Aki:Wewerepromisedatsomepointthattwoaerospaceteamsandfirewalledonesdoingdecadalthatthetwoteamswouldnotcontradictthemselveswhentimecomes.IwouldaskHQthatthesethreesub-aerospacesubteamsdon’tcomeupwithwildlyinconsistentevaluationsfromeachother.Mario:AudiencebiggerthanHQ.Shawn:QuestionfromonlinefromJaneRigby.Isreportpublic?Mario:Yes.Everythingrelatedtothisdiscussionispublicsincethisisnotcompetition.Aki:EvenmorespecificallyforExoSandExoCreportspostedonline.Audienceiseverybody:ourpeers.Dave:Whatdecadalwilllooklike?Dryrun?Aki:Whenwewritefinalreportitwilladdmoredetailstoourstructureforinterim.Togiveplacetostartfrom,Ijotteddownideasforversion0outline.Forsciencechapters,Igrabbedtitlesfromastroroadmap.Variationstoincorporatesolarsystemscience.FornowIwantustofocusonchaptersfirst.Inbreakoutsthisafternooneachsubgrouptostartthinkingaboutsectionswithinrelevantchapters.IllariaPascucci:Questionrelatedtoschedule.Time/schemetohavemorecommunityinput?Aki:Needtofigureouthow/whentodoin3.5monthwritingblock.Goodtopicforbreakouts.Brad:Candobysolicitingopinionsforcolleaguesatearlystage.ReportturnedinjustbeforemajorAGUandAASmeeting.Attheseneedtosellthesciencecasetothecommunityandsolicitbroaderinput.AnaGomezdeCastro:Europeanastronomerscanbeinvolved?Aki:Asfarasscienceconcerned,communityiseverybody.Forhardwarethingsareseparate.Whoeverwantstoprovideinput,wewantthem.

SlideforDraft0:1. ExecutiveSummary

a. Shortandinspirational,highlevel(~3pagesisupperlimit,writtenlast)2. Introduction

a. Overviewofreportinmoredetailthanexecutivesummarybutenoughdetailthatascientistcangetsolidpictureonwhatwholethingabout.Stateoffieldin2030s

3. Arewealone?a. Habitableworldsandbiosignatures,oceanworldsofsolarsystem

4. Areweunusual?a. Comparativeexo-planetology,solarsystemworkings

5. Howdidwegethere?a. Astrophysics,planetformation,historyofsolarsystem

6. Howdoestheuniversework?a. Electromagneticcounterpartstogravitationalwavesources,haven’tdeveloped

thissciencecaseyetbutmaybeweshould.Ormaybeskipthischapter.7. TheLUVOIRtelescope

a. ArchitectureAprogressb. ArchitectureBplans

8. TheLUVOIRInstrumentsa. UV-Optical-NIRCoronagraphb. LUVOIRUVmultiobjectspectrograph(LUMOS)c. HDId. ONIRS

9. POLLUX:EuropeanInstrumentstudyofaUVspectropolarimeter.a. Specialcase;nottypicaltohaveEuropeancontributiontoconceptstudyatearly

stage.ToldbyAerospacethatEuropeaninstrumentneedstobeseparableandindependentotherwiseAerospacewillattempttocostit.Thischapterisareportwithinareport.

10. LUVOIRtechnologydevelopment

Debra:Sixincludesalot.Origins,futureofcosmos.Aki:Wehaven’tdevelopedphysicsofcosmossciencecasesmuch.Canspendalotofworkdevelopingorachapterwithonebigsciencecase.Shouldtalkaboutit.Nick:ForsciencecasewehavetoseparatePOLLUXscience?Aki:Yes,science,tech,designneedtoallbeseparatedintoPOLLUXchapter.OtherwiseAerospacewillattempttocostit.ThisisanartificialsituationtosatisfyAerospace.GivenPOLLUXteamtheirversionofaschedule.Jason:Willthatbetrueoffinalreport?AnyPOLLUXscienceneedstobeisolated?Hardtodrawsharpboundaries.WhyareweallowingAerospacetodictatecontentandform?HQhaspower?

MichaelGarcia:Congresshasthepower.Jason:Matterstotheextentthatyouartificiallyallocatesciencefromoneinstrumenttoanother.Aki:WearefreetodisobeywhatAerospacerecommends.Don’tthinkweshould.Shawn:Wecanpushthatsciencediscussionintomainpartbutwe’llbechargedforit.Jason:Whycan’thavesciencesubchapterslabeledPOLLUX?Nick:ColorcodingPollux?Aki:IcantakethatsuggestionbacktoAerospace.CanPOLLUXsciencebescatteredthroughfourchaptersifwe’resupercarefulaboutidentifyingit?Jason:Wedon’twanttoignorescienceorshunttosecondclassstatus.Aki:PartlywhyAerospacewantstodoitthiswaysotheycanconsiderit“notrequired”science.Jason:Raiseswholehostofotherissues.Declareanythingwritteninsciencesectiontoberequirescience?Howwillweexpresssomethingsrequiredandsomenot?Aki:Scienceobservations/capabilitiesneedtoberepresentedinthoseinstruments.Brad:Askingustowritedownlevel1requirements?Julie:Basicallybaselinesciencevsnon-baseline.Aki:Whatwecando:ifthisisscienceyouwanttodo,weneed$tagonallscience.Jason:Evidentthattheyhaveconceptsintheirownmindsaboutwhichthingschargedandnotchargedthatwedon’tunderstand?Aki:POLLUXaspecialcase.ForotherinstrumentswewillprovideAerospacewithdetaileddesign,MELs,that’swhatthey’llcost.Iftheylookatsciencecaseandseewecan’tdoitwithinstrumentscosting,thatisredflagforthem.Jason:Procedureforiterativediscussionastheydotheirprocess.Aki:WhentimecomesforrealCATEthatisnotiterative.Wedon’tgetCATEprocessthroughSTDT.Vimportanttodothegroupreview.IwilltakePOLLUXthingbacktothemandseewhat

theysayaboutusbeingcarefulaboutidentifyingitsscienceinchapters?JasonthinkswouldflowbetterifPOLLUXscienceinsciencechaptersandIagree.Brad:SubsectiononPOLLUXscience?Aki:IfyoudistributePOLLUXscienceinpiecesthroughouteachofthe4sciencechapters,ifyoumakeitonewholesectionyou’rebackwhereyoustarted.Thenmightaswellstayinitsownchapter.Julie:Justmeanswearenotgoingtocost.Karl:FromExoCexperiments,Aerospacedidn’tpayattentiontosciencediscussionsectionsatall.JustcaredaboutcontrastforFOV,contrasts,etc.Don’tworryaboutsciencecasetextforAerospace.Aki:Iimaginethosewouldappearinsciencechapters.Karl:Whetherthoserequirementsconnecttosciencewedescribetheywon’tevaluate.Julie:Wearenotevaluatingrequirements.Aki:Wewillusedifferentword.Karl:Reactingtobreakdownof3bulletitemsrelatedtoexoplanetsandjustonetogeneralastrophysics.Unbalanced?Bettertobreakupgeneralastrophysicsmore?Aki:Ifyouwanttodothatthat’sfine.Tellmewhattheyare.Marc:Letworkinggroupsconsider.IagreewithKarlthatthislookslikeHabEx.That’snotwhatLUVOIRis.Thisisageneralastrophysicsmission.Aki:ThesewereroadmapchaptersandthenImaderoomforsolarsystems.Turntheastrophysicsonesintotwocompellingquestions.Shawn:Question4notreallyaboutEarths.Abouteverythingelse.Aki:Pleasemakethemsciencequestions,notobservationtypes.Marc:Igetideabehindtheformat.JohnO’Meara:Iwouldlovetoseeasaclosingsectionthefirst100days.Whatarekeythingswemustdowithitandclosewiththat.“Thesearethethingswe’regoingtodothatwillchangetheworld.”

• Conclusion:LUVOIRCycle1Aki:Appendicesweshouldhave?Julie:Yes.Mark:beforeappendices,weshoulddiscussenvironmentofthefield.E.g.30mtelescopes,etc.Karl:Joinsubsectiononstateoffield(HabExandLUVOIR).Ialreadyhavetodothatforprogramoffice.Happytodoexoplanetsideofthat.Shawn:WewanttomakesurecosmicoriginscolleagueswritingwithCOSpartofHabExteam?Wedon’twantastateoffieldjustexoplanets.Jason:Ingeneralgiventhisscheduleminimizingcoordinationisagoodidea.JaneRigby:Wedon’tneedtoaskalotofpeople?WehaveTMT,basicsetoffacilitiesandproblemssolved.Akiyoumentionedgravitationalwavecounterpart.Hardtoprojectthat.Aki:FromdiscussionwithLISAstudyscientist,answerisno.HardtodevelopmultimessengersciencecaseforLUVOIRregime.Oursensitivitysogoodtheyhaven’tmodeledEMbrightnessofgravitywavesourcesthatfaint.Jane:Waytoframe:whatparameterspacehasbeendealtwith?Whatdoweknowisuniqueforus?Aki:Multimessengerthingneedsthought.Jane:Icanhelponthat.Aki:Wouldloveitifyoutakeleadonthat. Marc:Onepossibilityisforeachsciencechapters,haveboxcallingoutsynergywithexistingfacilities.Forexoplanets,putJWST,EMT,TMT.Forstellar,differentthings,etc.Doesn’tmakesensetolumpallintoonething.Fitbetterintoindividualchapterswithcallouts.Jane:Waytothinkabout:Whatwillsolvedproblemsbe?Atsomelevelwewanttosay:Whatarewesurewewillhavealreadyfiguredout?Aki:Karlyouarewritingupforexoplanetsforprogramoffice?Karl:Prettymuch.WritingforExo-SandExo-C.Aki:Hopingthesectionstateoffieldin2030s.Notseparateforexoplanets,COR,solarsystem.

Marc:Thinktoolongforintro.Aki:Don’twanttorepeatourselves.Wehavetwoexoplanet-ychaptersandtwoastrophysics-ychapters.Guesswecanputthestateofthefieldinthechapters.LeonidasMoustakas:Relationshipofcapabilitiestosciencewedomakessensetocalloutinappropriateplaceinreport.Marc’ssuggestiononscienceresourcesbelongswithrelevantscience.Anappendixthatcapturesoverallsummarysyoudon’tneedtoredefineeverytime.Karl:Twothings:WherefieldhasgottobytimeLUVOIRlaunches?WhileLUVOIRoperatingwhatcandowesynergisticallywithexistingfacilities?Aki:Weneedtocoverwhathasbeendoneby2035,part2iswhatothersciencewillbehappeningduringLUVOIRlifetime?Tellmewherethesesubsectionsgo.Appendixtoreport?Ithinkifweputmostofthematerialinappendixputalittleinintroduction?Karl:Writeitandfigureoutwhereitgoes.Aki:Karlwritingexoplanetsone.Volunteerforwritingstateofastronomyfor2035?Someoneinbreakoutsessionfigureoutwhoiswritingforgeneralastrophysics.Solarsystemtoo.Thinkaboutwhereyouwanttoputthismaterial.John:Doyouenvisionforeachmajorquestionthateachwillhavetheirowntraceabilitymatrix?Orglobalmatrix?Kevin:Instrumentsections?Aki:Iwillaskgraphicsdesignersiftheycancomeupwithsomethingbetterthanatablefortraceabilitymatrix.Questionstoponderslide:

• Maketwogeneralastrophysicschapters• Flowofreport?• Lengthofreport?• Titleofreport?

Aki:Inreportshouldpointoutwherewecanchoosedifferently.Highlightoptionsconsideredbutnotchosen.Matt:Putintoinstrumentchapters?Optionsforalternativefutures.Brad:Reportisonethingbutwhatweneedisasciencebookthathassciencecasesoutlinedrigorously.

Aki:Soundslikeappendixtome.Brad:Couldbeappendixorseparatedocument.Needtoestablishcredibilitywithpeers.Shawn:Needstructurewecanprintdifferentpiecesseparately.E.g.shorterformforpeoplewhodon’twanttoreadwholething.HDSToneversion.Aki:Inappendicescanputdetailsofscienceperformancecalculations.Inchaptersstatetheresultofthesecalculations.John:Needsomewayforallofthesimulationtoolsastheygetbetterdefinedtobelinkedtoit.Embedtools?Makeclearsuiteofthingspeoplecanaccesstoseehowtomakefigures.Aki:Wewillsprinklethroughoutreport.Linkstotools.Laurent:Haveapythonnotebookforeachfigure?Maybewecanstartonthatnow.Brad:Keeptrackonwhichversionofsimulatorused.Freeparameters?Jason:Iwillsaymorelaterbutworkingonwaythatwecanpreserveacalculationandrecoveritlaterforonlinetools.Wewanttorecoveroutputsandinputs.Mightimaginelinkinreporttakesyoutotoolwiththoseparametersalreadysetandthenyoucandodeparturesfromthat.Nick:Thisiswhatopenscienceisdoing.RayPierrehumbertbookhaspythoncodeonwebsiteforallfigures.Modernscience.Aki:Let’sbemodern.Ok,howlongshouldreportbe?Brad:Aslongasitneedstobe…Aki:Right.Weneedtogetabettersense,butwealsowanttoavoidproducingatome.Finallyneedareporttitlethatcaptureswholestory.Shawnyouhadidea?Shawn:MaybeafterlunchIwill.Aki:Needinspiring,cooltitle.Shawn:WhatwasJohn’sidea?Thestoryoflife?Idon’tknow.Aki:Anyfinalquestions?Let’shavelunch.---LUNCHBREAK----

Brad:Welcomeback.Wewanttohaveshortdiscussiononoutlineofintrimreport.Anyadditionalthoughts?Ifnotwewillgointobreakoutsessions.Cosmicorigins,Exoplanets+SolarSystem,Technology.Differentsizedroomsforeachgroup.We’llassignbyshowofhands.Matt:Intechone,doesthatincludetopicsofdesign?Aki:Yeah.Brad:takesvoteCOS:12Planets:10Tech:(misseditbutitwaslargest)Debra:Weexpectchapteroutlineforeachworkinggroup.Wereconveneat3:30.

ExoplanetBreakoutSessionAttending:GiadaArney,NickCowan,BekkiDawson,ShawnDomagal-Goldman,CourtneyDressing,DebraFischer,OlivierGuyon,MarkMarley,VikkiMeadows,LaurentPueyo,AkiRoberge,BritneySchmidt,ChrisStark,KarlStapelfeldtMarkMarley:Alone/Uniquecategories.Isthistherightcategorization?Dowelikethesetwochapters?Debra:What’sthepurposeofreport?Breakdownastructureunderthesethatdoesthesethings?Alternativesuggestion?Nick:Insteadof“areweunique”whatabout“howdoplanetswork”?BekkiDawson:IllariawhoI’dconsiderclosesttomyworkisinadifferentgroup(protoplanetarydisks).VikkiMeadows:I’mfinewiththisstructure.Arewealone/areweweird?Mark:Doweflipthem?Vikki:Nothenweburythelede.Karl:Alonequestionhastocometothetop.Nick:Particularquestionforuniqueness,ifyouanswerthatyouanswerthefirstquestion.Vikki:Thisiscomparativeplanetologywritlarge.

BritneySchmidt:Andcontext.Debra:Aloneisbiosigantures.Nick:Arewealoneshouldreallyjustbebiosignatures.Everythingelseyouwanttodoforallplanets.Vikki:butcan’tinterpretwithoutthecontextoftherestoftheplanetcharacteristics.Nick:Alonepartshouldbesubsetofuniquenesspart.LifeElsewhere? DiversityofSystems

Areweunusual?Neighborhood

BiosignaturesFindHZplanetsOceanworlds

ArchitectureComparativeatmospheresSurfacesSolarsystemscience

Britney:Insciencechapterstalkingaboutsciencedrivers.Ininstrumentchapterstalkingabouttechnique.Nick:Youdon’tknowwhat’swhatinthefield.Planetsvsstars.CourtneyDressing:UniqueappliessosolarsystemnotEarth.KarlandVikki:Pleaseremoveunique.Comparativeplanetology.Mark:Uniqueisatightbox.Aki:Buttitleis“AreweUnusual”,notunique.Courtney:AloneissubsetofUniquechapter?Mark:Howabouttypical?Britney:Aloneisistherelifeanywhere?Secondishowdoplanetsoperate?(MarkrenamesAlonetoLifeElsewhereandUniquetoDiversityofSystems)Aki:Areweunusualissupposedtobeaboutcontext.Ifphrasingconfusingcanbeadjusted.Debra:Ididlikenotionofdiversityofsystems.Chris:Wekeepsayingcontext.Wecantalkaboutplacinglifeinthecontext.

Aki:wasthinkingaboutwhatImeanbythesequestions.Chaptertitlescanhaveasubtitle.E.g.AreWeUnusual:WhatistheDiversityofPlanetarySystems?Nick:Wehavehowtheuniverseworks,whynothowplanetswork?Mark:Structureiswhatarewelookingfor?Version2:LifeElsewhere? DiversityofsystemsNocharacterizedEarthtwinsyet,stateofthefield,whatELTsdoing(Mdwarfopportunities);sectionjointwithHabExàKarlS.,CourtneyWhichworldsarehabitable?

- Whatdoeshabitablemean?àTyRobinson/Meadows

- ConventionalhabirtabilityàRobinson/Meadows

- Ocean/icyworldsàBritneySchmidt- AlternativehabitabilityàNick

Cowan/Meadows- SearchàStark- Grossatmosphericcomposition:

lambda,R,deltalambda,DàMarkMarley

Biomarkers

- MoleculesàVikki- DetectionrequirementsàVikki

SynergiesduringtheLUVOIRera(2030s+capabilities)àKarl,Courntey,Olivier

Stateofdiscoveries:RV,fewdistantatmospheres,hotthings,JWST,eclipseandphasemaps,WFIRST+ELTs,TESS,CHEOPS,PLATO,solarsystem(oceanworlds,icegiants,NHtoKBO)àDebra,Britney,JacobBean,NickCowanSystemarchitectures:àBekkiDawson

- Disks(debris,KuiperBelts)- Distantplanets- Dynamics- Masses- Radii(&albedo)- Rings,moons,solarsystemàBritney- Multi-starsystems

Comparativeatmospheres:

- DiversityàMarley- Photochemistry,hazesàMarley,

Giada- CloudsàMarley- Evolution,escapeàFrance/Luca- Atmosphericdynamics+solarsystem

àCowan,Britney

SurfacesàCowan,Britney- Hotterrestrials- Others- Solarsystem

SynergiesduringtheLUVOIRera(2030s+capabilities)àKarl,Courntey,Olivier

Nick:SaraSeagerbiosignatures.

Karl:It’sjustlet’smakeHZbigger.Nick:IwouldputH-richatmospheresindiversityofsystems.Ifnotobviouswhichplanetsactuallyhabitable,unlessweseeexactEarthtwinwon’tbeobviouswhattolookforbiosigantures.Mark:Lookingforkeysunderthelightpost.Tostartwith.Nick:Wantlifeelsewheretobefirstthingtheyencounter.Mark:HowisLUVOIRuniqueforoceanworlds?Aki:JetmonitoringinUVBritney:AndanyoftheIRstuffasfaraswecangoisoutthere.Aki:Wateralwaysbetternotdonefromground.Britney:Allthatstuffinhabitabilityquestion,notseparate.Solarsystemisacasestudyforsomeofthisstuffforoceanworlds.Mark:Rightdon’twantittoseemtackedon.Aki:Mayswapconventional:earthlike,icyworldsOlivier:Goalistomapthesetomeasurementswewilldo?Aki:Iviewtheseassciencegoals.Olivier:Whatissciencegoal?AbilitytoidentifylifeVikki:Whatisnatureandprevalenceofhabitableworlds?Britney:havetostoryboardhowtheseallconnecttoeachother.Courtney:Wherearethey?WearenotgoingtofindEarthlikewithTESS.Vikki:ThosearepotentiallyhabitableworldswithTESS.Courtney:UVmonitoringinLifesection?Mark:Wealreadyhaveatonoftextonbiomarkers.

Vikki:You’rewelcome.JAki:Weneedtextonicymoons.Britney:Prettyeasy.Laurent:Tensionbetweennumberofthingswedetectandqualityofthedetections.Aki:Chrisyourargumentabout30Earthcandidatestoensureyouseehabitableconditionsgivenaneta_habitable.Olivier:Wavelengthcoverageiselephantintheroom.(discussionaboutsciencetraceabilitymatrix)Aki:Iwanttotalktographicdesignerandseeifsomeotherwaytodoshowit.Britney:We’vedoneitwithotherteamsI’vebeenonwithsciencequestionandcheckboxesforinstruments.Andwhenyougettoinstrumentsectionthathasspecifications.Willhelpaerospacefolksaswell.Laurent:Somesortofmatrixsowecanbookkeepwhateveryoneisdoing.Evenifwedon’tshowitinthereport.Debra:Stoplight?Green,yellow,red.Nick:Glintunderhabitability?Vikki:YesMark:JoinsessionwithHabExonwhathabitablemeans?Aki:Ithoughtstateofwhat’sbeendone,whatishappeninginparallelwithLUVOIRVikki:JWSTandgroundbasedwillhaveMdwarfs.Aki:Rightoffbat,pointoutthesethings.Courtney:WhataboutPLATO?(renoEarthtwinsyet).TheycouldfindEarthsinHZsaroundstarlikesun.Weshouldbecareful.Karl:WhoiswritingLUVOIRtransitcase?Vikki:JacobBeanissupposedtobedoing

Bekki:Isthestateoffieldstillownchapter?Nick:EasiertodowithHabExifownchapter.Vikki:ForExo-SandExo-Cwassubsectionofintro.Aki:Easiertodoforthosesincewhosciencecasewasexoplanets.Makesmoresensetometoputthedifferentstateoffieldsintheirproperchapters.Olivier:Therewillbeoverlapintargetsfor15mfortheseothermissions.Thesewillbemostinterestingones.Overlapareavinteresting.Vikki:Ithinkweshouldgoafterwhatisuniquefirst.Thencomplementarity.Aki:Maybeeverychaptershouldhavealastsectionthatisthat.Synergieswith2030s.Vikki:startwithstateoffieldandthencomefullcirclewithsynergiessectionatend.Aki:YeahNick:Ifmdwarfplanetshaveatmospheres,LUVOIRwillwanttokeepbeatingonthem(discussionabouttransitingplanets,Mdwarfs)GiadaArney:ProximaCenispotentialtargetforlargerarchitecturesifIWAsmallenough.Nearby,bright.Karl:Fortransiting?Giada:Nottransiting.Directimaging.Bekki:Wheredoesplanetformationgo?Aki:Planetformationshouldbeinwheredidwecomefrom.Bigbangthroughplanetformation.Switchtoexoplanetswhengasgone.Wehavetodivideitsomewhere.Bekki:We’llhavetorefertootherchapter.(discussionofdifficultyofgettingmasses,radii)Courtney:MdwarfsarehardforRV.

Olivier:Ifitdoesn’ttransitcan’tgetradius.Notgetting10umdirectimagingbecause20masapartfromstarandevenwithELTtooclosetostar.7-10starsaroundwhichyoucandetectplanets.NoneareMorKtype.Basicallyallsolartypestars.NearbyFandAtypestarsat10um.Karl:Thosecan’tdowithLUVOIRbecauseofcontrast.Britney:Weshouldalsoidentifythingsthataredriversforrequirements.Otherwiseyouhaveaverylonglist.Nick:Mostofthedriversontheleft(biostuff)Vikki:Mdwarfplanetsareveryinterestingfromcomparativeplanetologystandpoint.(morediscussionaboutitbeingweirdtohavedisksinmultiplesections).Bekki:HardtoputKuiperBeltin.Britney:Iwasthinkingaboutorbit-ythingsinothersections.Andobjecttypestuffhere.Aki:Whatisorbity?Nick:Dynamicsandformationintoother.Inthiswearestudyingtheplanets.Karl:Architecturerelatedbelongsinourside.ChemistryofmaterialinCOSside.Structureforus,chemistryforCOS.Courtney:Discussionforfullgroup?Britney:Hardtoorganizescience.Aki:Interestingthingaboutyoungdebrisdisksisplanetformation.Karl:Matureplanetswecangetinfoaboutstudyingdisk.E.g.massofplanetcausingstructureondebrisdisk.Aki:NotasuniqueaconstraintasI’dlikeittobe.Chris:It’sdegenerate.Karl:Ifknowwhereplanetisit’snotdegenerate.Chris:Mass,migrationrate,grainsizes.

Aki:DiskinferredplanetmassesnotnothingbutnotremotelylikeRVorastrometry.NASAsplitisdisksareincosmicoriginsBekki:Ifeverythingrelatedtoplanetformationneedstobeinothergroup.Meandothersneedtotakealotofthesethingswithus.Prettydifferentfromhowwe’vedonethissofar.Britney:Clumpingtechniqueandsciencequestionshelpful.Aki:Distinctioninmymindbetweenyoungandolddebrisdisks.Britney:They’reallrelated.Fromhowtowriteit…?Nick:Havetodrawlinesomewhere.AgreewithBritney:thematicallycleanerlinebetweenstudyingplanetsvshowplanetsgetthere.Mark:Let’stableanddiscussinbiggroup.(discussionofpagelimit)Debra:<100forinterimreport?Aki:Willbetight.IthinkwecanshootforasmuchasExo-SandExo-Creportswere.Vikki:Shortershowsdiscipline.Courtney:Wecanpickfigureswisely.Aki:Shootfor100total?Karl:Probestudiesonly10STDTmemberseach.Vikki:Soeachchapteronly10pages?(Missednotesfortheendofthediscussion)

CosmicOriginsBreakoutSessionNotesbyShawnD-GTop-linestructure:Cosmology,LargeScaleStructure+DarkMatterGalaxiesandgalaxyevolutionStars,StellarEvolution,andtheLocalUniverseSciencethemes:

“Understandingalltheaspectsofatomsingalaxies”asoverarchingsciencetheme.(Ilikeit.)“Howdoesstructureform?”Here’swhatgoesintoeachtemplate:Talkingaboutatradespacefor4/6.5/9/15-mapertures–maybea“checkbox”tableofyes/nofordifferentsciencecases?ScienceTraceabilityMatrixCalloutbox(orboxes)forcapabilities–likewhatyoucandoXhourssortofthing.Butsciencestatementsnotjustobservationdescriptions.Anothercalloutbox(orboxes)forstateofthefieldandhowweaddto/complementitStateofthescience/synopsesProgramdescriptions–suchastodothisrightweneedtousetheseinstrumentsinthesemodestomakethesemeasurements.Getattheideaofcombinedinformationfrommultipleinstruments.Parallelscienceobservationcases?(decidedtokickthisovertosomeothersection,maybeinstruments)Goalof6pages(includingfigures)foreachofthreeexamplesciencecases.

TechnologyBreakoutSession

Leads:MattBolcar,DavidRedding

Post-BreakoutReportsDebra:Reportsfrombreakouts.

Tech Breakout Report MattBolcarMatt:WewentthroughchaptertitlesAkihadgivenusandfilledthemin.(Mattgivespresentationontechnologygroup)

- IdentifyingenablingvsenhancingtechNickasksquestionaboutappendices.Matt:IfwehaveITARsectionputasappendixremovedfrompublic.Aki:Great!OnequestionIhad:workfromCANeffortsfromindustryCANteams.Wheredoesthatcomeinhere?Matt:Largelyincludedindesignreviews.IfoneoftheCANstudieslooksatsunshielddesign,alternatives…mergedintoitthroughout.Aki:IwanttheCANpeoplefeaturedprominently.

Figure2:Photoofdraftoutlinefortechnologychapters.

Julie:Theywillbeauthors.Matt:Techgroupsandsub-groupchairsAki:WorthsayingsomethingaboutCANs?Shawn:Onenablingvsenhancing,onethingindiscussioninCORistocomeupwithchecklistonwhatarchitecturescouldandcouldn’tdo.Matt:Oneofthekeythingswetalkedaboutisthreesectionsneedtobeconsistent.Shawn:Atsomepointweshouldtalkaboutsciencewegetfromenhancingtech.Occurinsciencechapters?Julie:Beinenhancingtechsection.Ifyoutrytodoasubgroupinsciencesectioncouldstartconfusingpeople.Shawn:That’sfine.Aki:Additionalsciencefromenhancingtechbriefstatementswiththeenhancingtech.Matt:Iguesssoyes.Matt:Weneedtofigureouthowwewillcapturethisatthereportlevel.Bigpicturelevelweneedtotalkaboutthroughoutdocument.Onbasiclevel:Hereisdesignandthishastobelinkedtowhatscienceisdone.Julie:Waystodoit.Mygoaltomakeitasclearaspossiblewhileconfusingasfewpeopleaspossible.Matt:Worthalittlethoughtastobestway.Aki:Someofthatindesignalternatives.Needtodiscusslogisticsofdoingthiswholething.JohnOMeara:Cosmicoriginssetupgithub.Aki:Virtueofgithubisversioncontrol.Maybeweneedtutorial.

Exoplanets Breakout Report MarkMarleyMark:Lotsofdiscussiononwheretodrawlineindebrisdisks?

Aki:Maybewedon’tneedtofigureoutrightnow.Stuffgetswrittenandwecanplaceitlater.Ilaria:(can’thear)Youngdisks,olddisksKevin:Feelslikedebrisdisksshouldbewithprotoplanetarydisks.Karl:BritneyandIwerediscussingafewminutesago.Iftalkingaboutaplanetclearlyonexoplanetside.Iftalkingaboutplanetsasasystem(forming,migrating,otherwise)betterinorigins.Aki:ThenthatwouldmovedebrisdiskscompletelyintoCOR.Britney:Idon’tthinkthere’srightorwronganswer.It’snotcosmicoriginsquestions.It’squestionsaboutorigins.We’restovepipingalittlebit.Doesn’tlookgoodfromtoplevelperspective.Wedon’thaveaseparatesectiononsolarsystemobjectsonpurpose.Solarsystemrelatesacrossexoplanets.Fundamentalsciencedriversarethesame.Reallyhowstructurallyitmakesthemostsense.Aki:Usingthatlogic,thendebrisdisksmovesintoorigins.Solarsystemtopicsaboutplanetformationalsoinorigins.Karl:Thingsaboutplanetsthemselves…Aki:Thatstaysinexoplanets.Latestagemigrationinorigins.Chris:Mostimportantstudiesinsolarsystemsinrecentyearsfromdebrisdisks.E.g.Rings,planet9.Nick:It’snotademotion.Movingbetweenoneawesometitletoanotherawesometitle.Movingfromdiversityofplanetsystemstohowwegothere.Shawn:Canwecomebackafterwetalktosolarsystempeople?

COR Breakout Report JohnO’MearaJohn:WeassignedteamnamesbasedonStarWars.Eitherawesomeorfrightening.Calloutboxesincolorse.g.synergieswithground.Uniformitythroughoutdocumentasvisualcuewouldbeanicething.Alsovariousscienceenabledbyvariousarchitectures.Checkboxestoshowwhatsciencetopicsenabledbydifferentarchitectures.(showsoutline)discussescalloutboxesthatarecolorcoded“Justasimportantaswordsarefigures.”

Packagemetadatawithplots.Wesuggestotherteamsdothistoo.(code,data)Emphasisthatwholereportneedstobecohesive.Aki:Ithinkweshouldtalkaboutthisnow.Debra:Yeahthisisthetime.Aki:Obviouslyasidefromthesixsignaturescienceprograms(thatCORisdoing),vastnumberofCORsciencecasesthatwillappearinappendix.John:AppendixiswhatIcalltheLUVOIRsciencebook.Aki:Andthatwillcoverlotsmoredifferentscienceapplications.John:WaytomosteasilyflowfromcompartmentalizationofCORtoLUVOIRcycle1attheendistohavestufflikethisonhand.Aki:Ifyoujustmadechaptersthatarelaundrylistsofallzillionsofsciencecases,they’dallbeashortparagraphlong.John:Weneedtofigureouthowtoturnlaundrylistof50sciencecasesintosignaturesciencecases.Thereisalotofoverlapbetweenthemonvenndiagram.Aki:Betterthanlaundrylistofthingssoshortthey’retrivial.ImportanttocapturesomewherefullrangeofCORsciencecases.Icanimaginesomeonebepissediftheircaseisn’tinthere.Kevin:Brad’smonsterbookofscienceAki:It’sanappendix,notaseparatebook?Brad:Iimagineweputonastroph.Aki:Ifmaterialthatsupportsreportneedstobeinreport.Brad:ApJlevelthatjustifiesnumbersinreport.Aki:Ifit’ssupplementarydetailtojustifynumbersinthereportitneedstobeinreport.Brad:Appendixthathasseveralhundredpages?Shawn:Onlinesupportingmaterial?Otheranalogysomeonehadisthesemightbestapledtogetherwhitepapersfordecadalsurvey.

Brad:Nomatterwhatformthistakeswillbegiventodecadal.Aki:Questionfordecadalstudymanagement.Canweputoursupplementarymaterialonline?Shawn:Otherwisewaytoomanypageornothaveenoughrigorinthewaywedothings.Aki:Iwasn’tcountingappendicesagainstpagetargets.ButIguessifyouhave200pageappendicesmaybeyoudefeatthepurpose.Nick:Doyouguystalkaboutplanetformation?Doyouownplanetformation?GeneralagreementCORownsplanetformationNick:YouplanetpeoplehappyinCOR?Kevin:Itdoesn’tmatter.ThisisthesciencethatbridgesexoplanetsandCOR.Thisiswheretheymeet.Nick:Whydon’twehaveseparatesectiononhowdoplanetsform?MaybeatsamelevelasAreWeAlone?AndthenAreWeAlone?AndHowDoPlanetsForm?Ifit’ssuchagreatlink,whydoesn’tithaveitsowntent?Kevin:Toadegree,willbeoneofsignaturesciencetopicsinoneoftheCORchapters.Willbefirstinorder.John:Yesnaturallyflowsfromexoplanetchaptertohaveitfirst.Bekki:Myquestioniswhatdoyoudowhenmultiplesciencequestionshavethesamemeasurementobjective?Anexampleismeasuringaplanet’sorbit.Relevanttoformationbutalsorelevanttotheindividualplanetfocusedquestions.Shouldbementionedinbothplacesbutyoudon’twanttorepeat.Shawn:Weneedtobecarefulthatexoplanetsreportisnotjustcoronagraphsciencecase.NeedtostartwithscienceQs.IfobservationpopsupmorethanonceIthinkthat’sok.John:Partofthereasonwhytheseboxespepperthroughoutaboutscienceenablingaspects.Youcanconnectthedotshoweveryouwish.Aslongasitappearsintherethenpeoplecanconnectthedotsatleastmentally.Aki:Toavoidrepetition,ifmeasuringorbitsdiscussedinexoplanetchapterbutwanttousethoselater,justrefertoearliersectionaboutthatobservationneed.Nick:Sciencetraceabilitymatrixshouldshowtheseconnections.

Aki:YeahIthinkwecanhandlethatandavoidrepetitionwithcross-referencing.Iguessthewayyouguysenvisioneditisstateofscience,synergieswithwhatishappeninginLUVOIRera.Inexoplanetssectionwehaditdivided.StateoffieldattopandsynergieswithLUVOIRerafacilitiesatbottom.Whateverwedoforthisaspectweneedtoalldoitthesameway.Howdowewanttodoit?Togetherinonebox?Splitatbeginningandend?HabExandLUVOIRshouldhavesamebackgroundinfo.Nick:Nicetoputthingsinboxesisbreaksuplinearnarrative.Ilikeboxes.ButwehavethecuriouscaseofHabExandLUVOIRwantingsamebackgroundinformationbutdifferentmissions.Aki:ButHabExdoesgeneralastrophysicstoo.John:Butoneboxortwo?Karl:Ithinkyouneedtwoboxestodoentiretreatmentofthesubject.Courtney:Ifboxtakesupwholepagenotvisuallyeffective.Aki:Howlongthesebitsendupbeingwilldictatewhatwehavetodo.John:Wewilltrytogetafullyoperationaltemplatedoneupsoontogetanideaofwhatitvisuallylookslike.Aki:Don’tforgetyouhavetocoordinatestateoffieldwithCOR.Thisisaboutwherestateoffieldwillbein2030sandwhatotherLUVOIR-erafacilitiescando.Needtobesame.ForExo-SandExo-Creportsthesame.Karl:Ininterimweresamebutnotfinal.Aki:Theyshouldbethesame.Matt:IfweasLUVOIRteamsettleoncalloutboxesthatwilllenditselftoacertainformatoftextthat’sbrief.IfHabExdecidesnocalloutboxeswillgettwosetsoftext.Fineifhavesameinformation.HabExteammember(notsurewho):HabExgeneralastrophysicsissmallerthanLUVOIR.Wehavestartedhavingtelecons.John:Itwillmatchup,won’tbeverbatim.Vikki:Theyshouldnotcontradicteachother.Aki:Andtheyshouldcoverthesamekeypoints.

Shawn:GoodifOSTalsoagreesonstateoffield.Aki:Topicforpauseandlearn.HighlydesirableforHabEx,LUVOIR,OSTtoallagreeonwherewewillbein2030.YesOSTcomesintothistoo.Courtney:Alsowantpeoplenottobeoffendediftheirsciencecaseisnotconsideredsignaturesciencecase.Wordcloudsopeoplecanfindtheirfavoritesciencewordsthere?Aki:Ithinkhelpfulbutmightnotbesufficient.Butsoundsfun.Courtney:Shouldcomparewordcloudtofulldocumenttomakesurenotmissinganything.Bekki:Anotherquestiononplanetformationissue.Wheredoweputobservationsonphysicalprocessesofplanetformation;alsothingsyoumaywanttolookatforindividualsystemforunderstandingparticularplanets?Illaria:Atthemomentincosmicorigins.Bekki:Alsoatthemomentinexoplanets.Aki:We’renotthefirstgrouptostrugglewiththis.John:WehavegoaloftwoweeksfromtodaytoidentifysignaturesciencecasesAki:Doyouhaveideasforyoursixsignaturesciencecases?John:Lotsofdiscussionsofar.Aki:Givenourshortpagelimits…30pagesforthesethreechapters.30forexoplanetchapters.30fortechnology.Canyoudoit?Matt:Ithink30foreachsectionintech.Aki:Wellwejustwentover120.40pagesfortech?Introductionandconcludingcycle1…John:Thatcanbeonepage.Itdoesn’thavetobemorethantwopages.Justahappyvisionarysummary.Aki:Butintroneedstobesomethinglike10pages.Icanlivewith120pages.Shawn:Mariohowdoes120pagessound?

MarioPerez:IthinkWFIRSTschemewas356pagesofwhich200wereinappendix.Mainbody150pagesorso.Marc:AnotherthingtokeepinmindwithregardtoWFIRST,versionpublishedinastrophisacondensedversionforcommunity.Aki:Hopefullythat’sourintrochapter.Mario:Highlyrecommendedyoudothis.Aki:Whenwritingintroweshouldwriteitintendingtobeastandalonedocument.Inballparkof120ishsoundsok.Matt40isok?Matt:Wecanmakeitwork.Aki:OhPOLLUXintheretoo.Julie:Wedon’tneedtodothisnow.Marc:TMTsciencecase200+pages.Theyevenhadalotofoneparagraphshortthings.Notthatweshouldfollowthat.Iwouldn’tover-worryaboutpages.Aki:OkIguesswe’reok.IguessIneedtotellPOLLUXteamIgavethemapagetargetthatwastoolong.Shawn:DoexofolkslikestructureCORlaidout?Mark:Questioniswhetherwewantsynergiestobeseparatebox?Mytakeissynergiesshouldbedifferentbox.John:Aslongasit’sabox.Aki:Oktwoboxes.Eachchapterhassomeflexibilitytodecidewheretoputit.Wouldn’thavetobeinsameplaceineverychapterifinboxforuniformvisuallook.Mark:ForExoCwehadprofessionalworddocumentperson.Aki:We’llhavethattoo.Mark:Weshouldwriteinword?Julie:Don’tworryyet.

Shawn:Don’tworryaboutformatting;worryabouttextinwhateverformworksbestforyourteam.Ifconvertingtobedone,wewilldothat.Mark:Irememberatendofexo-Cittookalotoftime,thiskindofstuff.MostlyonKarl.Karl:Ourdocumentarianabsorbedalotofdifferentformats.Britney:Talkedaboutstreamlinetableforsomeversionofsciencetraceabilityforeachsection.Formatshouldcometopdownsoeachsectiondoesthat.Greatwaytominimizenumberofpagesandmaximizetechoutput.Aki:Yeah.John:Includeintemplate?Britney:maybebettertocomefromprojectside.Matt:Standardsciencetraceabilitymatricesunreadable.Britney:Alotofworkinplanetarymissionstomakethemmoregraphic,clearer.Aki:Doyouhaveexamples?Matt:Ifanyoneknowsofgoodmatrices,senditaround.Britney:Iwillsendaround.Aki:IfthereareotherdisciplineswithbetterideasforhowtolaythisoutIwanttoseethem.Canweincorporatethisoutlineforexoplanetchapters?Mark:Weneeddeadlines.John:Twoweeksfromtodayisfinalizationofsignaturesciencequestions.June15deadlineforfirstdraftofall.NebulousJuly.Intermsoftemplatedecision,wecanprobablydothatquickly.Aki:That’sbasicallytheinterimreportoutline.Weneeditfinalizedbyendofthemonth.Weshouldhopefullybeprettyclosebytomorrow.Brad:Thankyoueveryone.Veryproductiveday.Lookforwardtoanotherhalfdaytomorrow.______________________________________________________________________________

Day2(TuesdayApril18)Brad:Welcomeseveryoneback.

CommunicationsDiscussionShawnDomagal-GoldmanShawn

• ShowsJointHabEx-LUVOIRcostslide• HabExdoingindependentcostingtwice.LUVOIRdoingonce.

Aki:HQpayingfor1AerospaceCATEShawn:Independentcostinghappensonceortwicebutothercostingsfrominternaldesignstudies.Multiplewaysofgettingacost.Aki:Outofcuriosity,Philwhatdoyouthinkofslidelanguage?Phil:Iwanttoremindeveryonethatsinglelargestcostinmissionisscienceinstruments.Numberofpixelsmaybeagoodestimateofnumberofcost.Ithinktherearesomeindicationsthatyoucanlookatnumberofpixelsascostindicatorperinstrument.Smallertelescopethesmallerproportionittendstobe.IfyoulookatSpitzer,it’s10-15%.IfyoulookatJWSTit’scloserto25%.Julie:17%forJWST.Lee:There’ssubtletiestoallthis.Phil:TotalmissioncosttoJWSTIamexcludinggovernmentcontribution.NomissionpriortoJWSThaddataonwhatgovernmentpartofthecostwas.JWSTtotalmissioncostIwouldgetisphaseA-Dturnsouttobe6.3billionifyoubackoutphaseEwhichisanotherbillion.Governmentcontributionisprobablyanotherbillionorso.20-25%isadifferentnumber.It’sreallyreallycomplicatedtotalkaboutgeneralities.IrecentlydidcostestimateforOSTandIestimatedcostfor9mat40KOSTtelescopewouldbe.6-1.1billion.Infutureyeardollars1-2billion.Aki:Maybeworthaddingabulletpointtothatslidetothatslideaboutcostingiscomplicated.Lee:Alotofthemodelswe’vedoneandcostmodelinginfoforpastmissionsoutofallofthoseonlyonesegmentedtelescope.Economiesofscalecanbeabenefit.Phil:Iwouldn’thangyourhatthere.Lee:Weshoulddoabetterjobofcommunicatinghoweconomiesofscalefactorin.IcanworkwithPhilofflinelookingatgroundtelescopes.

Matt:Allofthisillustratescostingisreallyhard.Phil:Mydataindicatescostgoeswith1.7thediameter.You’rebetteroffbuildingbiggesttelescopeyoucanaffordbecauseifitwasstrictlyasdiametersquaredthenitwouldbeindependentofthe(unintelligible).Morephotonsperdollarwithlargeaperturetelescopethansmaller.Aki:Discountedphotonswithlarger.Phil:IfyoulookatChris’modelsonnumberofplanets.Goesas1.7–1.8withdiameter.Sameascost.Costperplanetisaboutconstant.Marc:Butthat’snotmetricwe’reusing.Youneedtofindtheplanets.Aki:Buytheseplanetsgetastrophysicsforfree!Phil:Segmentedtelescopebeinglessexpensivethanmonolithideaaroundforawhile.Iwaslookingatdatarecentlyandcametorealizationthatsegmentingmayincreasecost.Kindofsubtleandnotobviousandnotevenabigeffect.Like5%.We’renotreadytopublishityet.Brad:Ihavetodisagree.We’relookingatsomethingbiggerthanthebiggestfairingavailable.Phil:Ifyoucan’tbuilditwithamonolithyou’rebetteroff.Ifyoucan’tthenyoucan’t.Shawn:It’scomplicated.Ifyouaskdifferentpeopleintheroomyougetdifferentstories.WeneedtoincorporateexpertiseofDaveandPhilandLeeandAerospace.Evenifnotaccurateit’spreciseandanumberwecanrelyongoingintodecadal.Dave:PhilI’mwonderingaboutproblemwithmonolithsbeinglargeenoughtobeinterestingisthattheyarewaylargerthananythingbuilt.Phil:Inspace,notground.Brad:Largestmonolithsongroundare8.4m.Dave:Butwe’renotflyingthose.Thereareseriouschallengesindevelopmentofspacequalifiablemirrorsin4+mcategory.Istherehistorythatinformsdeltaincostwithnewmirrortechdevelopment.Phil:Allmypublishedworkisbackwardlookingnotforwardlooking.Dave:OneexampleisSicarbideHerschelprimary.Wellbelowcurveforotherthings.Iwanttopointouttherearewaystorelaxtolerances.

Shawn:I’dliketogetbacktocommunications.Wehaveaslideonthistonotspendanhouronthisateverymeeting.Dave:Youhavetoobservetheritualsofourcommunity.(laughter)Karl:Asmuchasyou’dlikethatcharttobethestoryeveryonebuysthatwon’tbethecase.Atsomepointourinternalcostestimateswillleakoutthere.Whatdowedothen?Aki:Thisisn’ttheslideforalltime.Thisiswherewearenow.YouraiseagoodpointonourinternalcostestimatefromIDC.Itwouldbegoodforustothinkaboutwhattodowiththatnumber.Shawn:AndincontextofArchitectureAandBbeingdifferentimplementations.Bcouldbesignificantlyless.Karl:Dowekeepcostestimatesunderwraps?Notobligatedtorelease.Aki:Ithinkanycostestimateatinterimreportstageissuchawag.Wildlyinaccurate.I’dprefernottoputoutthesenumbers.Brad:I’mnotsure.TofirstorderthisisgoingtocostaboutthesameasJWST.Butwedon’tknowthat.Couldbeafactorof2or3.Lee:Idon’tknowalotaboutcommunications.ButIthoughtbetterbeingopen.Otherwiseopenyourselvesuptorumors.IthinkcostwecomeoutwithwillbeLESSthanwhatpeoplethink.JWSTcostdrivenbycryo.Idon’tthinkpeoplewouldbeupsetbywhatwecost.Idon’tthinkitwouldbeoneofthehugenumberspeoplehavepostulated.Dave:Atsomepointwehavetoownthecost.Lee:Weneedtofocusongettingdownthecostoftheexpensivepieces.WeneedarchitectureBcoststogodown.Brad:Firstestimatewegetwilltelluswheretoconcentrateonwheretoreducecost.Shawn:Howaboutwehaveafairlygoodlongdiscussiononfirstcostnumbersonhowtocommunicateitatthattime?Aki:Thesearegoodpoints.Shawn:IfwedidgetaWebbcostestimatefor15mwe’dwanttoscreamitfromrooftops.

John:Ultimatethingisfourthline(Ultimateresponsibilityofdecadaltojustjudgesciencetocostratio).Atendofdaydecadaldecidesoptimumscience-to-costratio.Sciencetodollarratioiswhatdecadalsurveyisabout.Britney:Whenyouarecomingupwithnextversionofslides,reallyimportantthingwillbetobeveryclearonwhatitincludeslikemargin.Beveryupfrontonwhathasbeenconsideredisimportantpoint.HavetofaceJWST.We’vebeatthisdownwithothermissionsbydiscussingwhycostslowerandwhatcostincludes.Shawn:Wewillwantmorethanoneslideatthatpoint.Jason:IagreewithBritneythattherewillbeafactorof3afteryouquotecost.Iguessanotherimportantmessagewehavetotrotoutisthatwe’renotgoingtocomeupwitha15-20billiondollartelescopethatwilldestroytherestofastronomybybuildingit.Noneofthatistrue.Nosciencepiecehascostthatmuch.Whateverwedohastofitintothatboxsomehow.LessonsofJWSTcanavoiddoingthisfactorof3again.Weareasagroupandasegmentoflargercommunityarenotadvocatingtobeonlymissionofthisscaleever.Thisisnotazerosumgame.Notadvocatingnoothermissionsexistbyadvocatingforoneexpensivemission.Aki:Thosearealsogoodpointsnotcapturedonslide.Dopeoplewanttoaddpointstoslide?Jason:Thisisgoodasitis.Stuffwe’veaddedtoitaretalkingpoints.Aki:Talkingpointsinnotesontheslides.Johnyoursuggestion,didyouwanttoreprioritizethepoint?John:Scienceperdollaranddecadalsurveyprocessistheprocessthatevaluatesthat.WhatIemphasize.Aki:ScottGaudiisshowingthisslidetoHabExteamlaterthisweek.Shawn:Nowontocommunicatingeverythingelseexceptforcost.TalkedtoAmberStrong.ShetoldstoryaboutwhenWebbneededsciencecommunitytorally.Askedcommunitytorallyby:ifgivingcolloquiumputabitonLUVOIRoroffertogivebrownbagseminaronLUVOIR.Reachouttodifferentdepartments.Otherthingisifyougotoaconference,submitabstractonwhatLUVOIRcoulddoforyou.ExampleIhaveinmyheadisifit’sAbSciConorCoolStars,youcansaywhatLUVOIRcandoforastrobiologyorobservingcoolstars.Ifyougivethosekindsoftalks,IthinkthisissuethatKevinmentionedyesterdayabouthavingpeoplenotunderstandoursciencewillnaturallygetrectified.MyexperiencewithExo-S,IthoughtitwasgoodwhenSaraempoweredustospeakonExo-S’sbehalf.WewouldlikeallofyoutodothesetwothingsandBradandDebraagree.Tohelpwehavetoolsincommunicationsdrive.

- Showslistofconferencesschedule

Ana:Iamresponsibleforinternationalworkinggroupof(can’tunderstand).HavetoreportonfutureofUVastronomy.Weareworkingat3levels:differentsizedmissions.Oneofourkeyobjectivesisreportonsynergiesbetween(can’thear).Wecangivevisibilityontheseactivitieshere.Willhelpusalotofontheworkinggroup.(IAUGeneralAssemblymeeting).Ideaistousemeetingtodiscussreport.Shawn:Pleaseaddthattoitoremailus.Aki:Wedon’thaveaspreadsheetcategoryforreportsorwhitepapers.Maybeweaddthis.Karl:COSPARmeetingtakingplaceinPasadenain2018.Supposedtobeexoplanetsession.July14-22.Shawn:Pleasefeelfreetoaddmeetingstotheconferenceschedule.Akiwillformatitnicely.Aki:Yeah.Ithinkupuntilnowwe’veusedthisspreadsheettorecordwhatwe’vealreadydone.Wehaven’tbeenlistingconferencesthatweSHOULDbecovering.Karl:Wetrackexoplanetconferencesinprogramoffice.Aki:Butmoreforotherparts.ListforCOR?Marc:Canadianwebsitemaintainsalist.Aki:Thatlistisabsolutelyenormous.Marc:Butthat’sthenatureofgeneralastronomy.Aki:Iguessit’sgoodtoidentifywhicharerelevant.Wecan’tdoall.Havetoprioritizeandusecriticaljudgement.Leonidas:Spendquickreviewoncepermonthsonteleconsonwhoisgoingwhere.Shawn:Canalsogooverwhathasimpendingabstractdeadline.Aki:January2018AASwillbebigsplashforalldecadalmissions.AtjointLUVOIR-HabExtagupsweneedtostarttalkingaboutcoordinatingactivities.DojointthingsatJanuaryAAS.Nospecificplansyet.Thisislikeourdebutanteballandneedstobeshiny.Leonidas:Deadlineforspecialsessionscomingupinnextfewweeks.Needtodecidesoononspecialsessions.

- Slideoncolloquiaandseminars- Discussesvisualizations

o LUVOIRdeploymentvideo.Afterdeployshaveashotofitinalightbox.Imagineaniphonelitreallywell.Tohelpshowserviceabilityhaveinstrumentsslideout.Have“baseballcard”statisticspopupnexttothem.

- InternalresourcesatGSFCtodoexoplanetstuffinparticular.STScICORvisualizations.- Discussesposteridea

Giada:Theexoplanetpostersarelovedbynon-exoplanetpeopleandevennon-scientists.CanfindprintsofthemonEtsy.Goodpublicityforusifwemakesimilar.(discussionaboutputtingslidedecksonthegoogledrive)Aki:Marccanyouputyourslidesinpowerpointformatonthegoogledrive?Marc:They’reonthereinSeminarsandWorkshopsfolder.Aki:Bringthatintocommunicationsfolder.(discussionofmakingatechslidedeck)Aki:WeneedtomakeplansfortheJanuaryAAS.Bitsplashforthat.Wewantasplintermeetinglikelasttime.Dowewantanothertoolssession?(generalagreement)Shawn:NextversionoftoolsseminarmaybethelatextemplatestomakesciencecasesforwhatLUVOIRcando.Setofsciencecasesfordecadal.John:Optimalversioniswebform.Wanttokeepassimpleaspossible.Shawn:Likeabstractsubmission?John:Basically.Karl:Wehaveopportunitytodosomethingdifferent.Wecanhavespecialsessionwithbreakdownsof10minutetalksthatwillindividuallyappearinconferenceprogram.Wecanhave5-10peoplethatwouldpresentinthatspecialsession.Mayhavebroaderimpactthansplintersession.Aki:Goodidea.Weshoulddoboth.Shawn:I’mhearingsplintersessionthat’sLUVOIRtools2.0.AndthemoreurgentneedisthespecialsessionthatisaseriesofLUVOIRtalks.(May25isspecialsessiondeadline;splintersacceptedonrollingbasisonfall)Shawn:John,Jasoncanyoupulltogethersomethingonsplintersession?

John:Splinterandspecialsession?Shawn:MarioareanyHQwiresbeingtrippedhere?Mario:NoandallotherSTDTgroupsgoingtodosame.John:ShouldbeonebigthingwhereeachSTDTdeliverssummaryofinterimreportatthesametimeinonesessiontogether.Ifwecanhaveabooththat’sbasicallyfortheSTDTsthatwouldbeuseful.Havephysicalcopiesofinterimreportsforpeopletolookat–forallSTDTs–reallyimportant.Aki:Excellentidea.Justasamatterofpracticality,wastiringrunningbackandforthbetweenthingsatlastmeeting.WouldlovetohaveitinbigNASAareatohaveabigtablefordecadalstudiesinsteadofbeingdistributedaround.SusanNeff:Wecanaskaboutthis.InmyopinionnotspeakingforHQthattheyliketostickwithwhatthey’vedonebefore.Ifwestartnowwehaveagoodchance.Shawn:WecanatleastarrangeforExoandCORboothstobetogether.Aki:Weirdlylaidout.Susan:Youdon’twantpeoplehavingtohuntforyouinmultipleplaces.Aki:Let’saskforwhatwewant:onebigareafordecadalstudies.Susan:Youwantmorethanonetable.Aki:Averylargetableortwo.Thatwouldbegreat.Wecanbringuptodecadalstudiesmanagementteam.So:specialsessionwithLUVOIRsciencetalks,splinterhandsontoolssession,centralizedplaceinNASAboothforallfourstudies.IlikedSTScItouchscreentools.Thatwascool.Jason:Thatone’s84inches.Courtney:Canweget“AskMeAboutLUVOIR”buttons?Susan:Youguysprobablywanttopayforthatoutofpocket.Countedasswag.Brad:Ifadollarortwoperbuttonwecanpayoutofpocket.Shawn:Samefolksthatdographicswillgivefirstcutatlogo.

John:BeforeclosingonAASquestion…wementionedacoupleoftimescoordinationwithHabEx.Iwanttounderstandinternallywhatthismeans.RumorsflyaboutLUVOIRandHabEx.Whatisthemessagewearetryingtosend?Brad:Wehavetomakesurenottogivecontradictoryinformation.Weneedconsistentmessages.Shawn:Ithinkmostpeopleineitherstudywantbestthingpossible.Abigreasontocoordinateistomaintainspiritofthepursuitofthatendgoalincontextofthatprocesswithalotofuncertainly.WithmyscientisthatonLUVOIRisthethingIpersonallywanttohavehappen.That’swhatmysciencebiasdrivesmeforward.I’mstillonHabExteambecauseI’mnotconvincedLUVOIRissomethingcommunitywillreceive.Brad:We’vesaidfrombeginningthatLUVOIRisasupersatcomparedtoHabEx.IfLUVOIRisrecommendHabExpeopleshouldbedancinginthestreets.Theycandoeverythingtheywanttoandbetter.Shawn:EvenScottGaudihassaidthis.Hejustdoesn’tthinkit’sanoptionforus.Coordinationistobeconsistentwitheachother.Aki:FrommyperspectivetwopracticalreasonstocoordinateandgetalongisoneBradsaidaboutconsistency.AlsowhatShawnbringsup.Ifwestartpointingfingersandtreatingeachotherasrivals,webothfail.John:Whatbothersme,internallytothisgroupwehavebeensomewhatslowatdiscussingwhenthingshappeningjointly.Subsetofpeopleintheknow.Importantforustoknowwhatthosethingsareandwhenhappening.Asinternalcommunicationstrategywecandobetter.Aki:It’sfunnybecausetherearerumorsthatwe’remergingteamsandotherhandtherearerumorsthatwe’reateachother’sthroats.Neitheristrue.Onceamonthchairsoftheteamshaveonehourtelecontagups.IdeaforcoordinatingforAASiskindofnew.John:Wouldbegoodtohaveminutesfromthoseminutespassedon.Shawn:Ifyouwanttohaveafirstorderideainyourheadofcontentofthosediscussions,usuallyaboutplaceswethinkaresorespotsbetweenteams.Onereasonforcostslide:potentialsorespot.Anotherisagreedtechmaturityassessmentforfourarchitectures.Marc:Thepointistheexpertisearoundthistablemayhavedifferentideasonwhatthosesorespotsare.Aki:Tellusifyoufeeltherearesorespotsbetweenusandotherdecadalstudies.Please.AregularagendaitemduringSTDTteleconsshouldbeasummaryofjointleadershiptelecon.Somethingweshouldstart.Weneedanagendaforeachmeeting:IDLrunupdates,etc.

Lee:OnemessagingthingweshouldthinkabitaboutisNASAHQ.AfrustrationIfeelisthewayLUVOIRtechisbeingperceivedandgradedagainstothertech.Weneedamessagingplanof–justasanexample–coronagraphy.GreatdemonstrationWFIRSTdid.Modelsabletopredictsmallchangesprettywell.ImpressivedemonstrationrelatabletoLUVOIRandbuildsonlongheritage.IgetfeedbackfrompeoplewhoperceiveLUVOIRastechnologicallyasrisky,etc.Ithinkthat’swrong.Telescopetech,segmentedmirrortech…Ihavestrongopinionthatsegmentedtechishighlymature.Thisisallaboutgettingstabilityandcontrast.WeneedtocommunicatetosciencecommunityandNASAHQ.Aki:Thereisanotherjointslidebeingworkedon.Nottechmaturityslidebutmorejustdistillingtechnologicalmyths.E.g.youcan’tdocoronagraphyinUV,withsegments.Ididn’tshowithere,butthenIwaslookingatitanditisn’tsuperwellsuitedtobeajointslide.Marc:Jointstuffisgooduptoapoint.Aki:MaybeIshouldshowitanywaybutthisparticularslidedoesn’thavetobejoint.Matt:It’snotsomuchHabEx/LUVOIRdisagreement.It’sanexternalperceptionoftechperceptionnotself-consistentorbasedonstuffLUVOIRactuallydoing.Aki:Yesandthisisanewdevelopment.ExoplanetprogramofficeincollaborationwithAerospacetooktechgaplistfromlastyearanddidaTRLassessmentonit.BrandonpresenteditlastThursday.Thisisanegotiationprocess.Notdone.Matt:Understoodandagreed.Ultimatelyweagreewithbottomlinenumbers.It’saprocess.Weneedtoknowaboutit.Aki:Alittleoutofthebluesky.IthinkBrendonyouweretaskedasindependentTRLassessment.Youinterpretedasunabletoaskquestionsonwhatweredoing?Lee:IactuallythinkBrendondidagreatjob.I’mtargetingperceptionofNASAHQthatLUVOIRistechnologicallyriskyorlessmaturethanotherareas.Ilookatcoronagraphydevelopmentandyearsofworkoncoronagraphy.Twoyearsago,segmentedcoronagraphdesignstudythroughexoplanetoffice,Ihadanargumentthatyoucouldn’tbuildasegmentedcoronagraphever.Coupleyearslater,NeilZimmermanhasAPLCdesignthatmeetsthatwithobscuredaperture.Weget1010contrast.Somepeopleinheremaynotknowthis.Tomethat’shuge.We’realmostatTRL6forsegmentcoronagraphy.Iwanttogoaroundshoutinghowpositivethisnewswas.Lookingattrajectorywe’regoingtogetthere.Aki:Canyoumakeaslideyoucanshowthatconveysthatenthusiasm?Lee:Wetalkedaboutminiwhitepaper….

Aki:Slideplease!Shawn:IncorporateintoslidedeckMatthastomake.Weshouldbeapointwheretheleadershipknowsaboutthisstuff.Lee:That’sjustoneexample.Otherswe’reworkingoninstabilityarea.Aki:Wewanttohavethatinhandduringpauseandlearn.There’satargetforyou.Karl:FirstofallrankingoftechinputsfromflagshipmissionswaspresentedatExoPAGinJanuary.Rankingcompleteandshown.Wehaven’tleftyouinthedark.Shawn:SubsetofthosetiedtoLUVOIR.Karl:VerygoodifWFIRSTencouragedtodotestbedtestofresults.Encouragethemtosharetestbedstatus.Becautiousthattherearegoodperformancepredictionsofcoronagraphsincomputernotdemonstratedinlab.Shawn:PointLeeismakingistherearemultipleapproachestostarlightsuppressionproblemwe’vebeenpursing.Wanttomakesurestandsweholdonetoaresameasstandardsweholdanyto.Ifokforstarshadetorelyonsubsizemodeling.Coronagraphshouldalsobeabletoreplyonsubsizemodelingtoo.Laurent:Firsttimein10yearsIseemodels(ofsomethingIdidn’thear)thatpredictperformance.Lee:Thatandtheyachievedcontrastlevelstheyachieved.Twoyearsagopeoplehadargumentsaboutnevergettingto1010evenincomputer.Nowwe’realmostthere.ShouldgetpressreleaseoutandrelatetoLUVOIR.Aki:Wehavepeopleinroominvolvedwithit.Canyouguysputoutapressreleaseaboutwhatthisgroupapparentlyfeelsisamajormilestone?Laurent:Wedon’twanttoclaimtoomuchrightnow.AfterSR,peoplewillrelax.Aki:Thereisdistinction.ThisisHCITresultthatisstilltrue.Lee:Whoownsresults?Karl:WFIRSTownstheresults.NeilZImmerman:SpecificplotsI’mthinkingofisDMsappliedaberrationsthatmatchedexactlywhatmodelpredicted.Verystrikingtome.

Lee:NeilhelpfulifyouandLaurentcantellstory.MessageIwanttosendtoanyonebuildingthesesystems:Modelsmatchedsowell.Tremendousachievement.Aki:Irealizethisisreallyinterestingbutwejusttalkedthroughourcoffeebreak.Brad:Coffeebreaknow!---coffeebreak----Brad:Discussionaboutlogistics.Leonidas:Discussesafternoonlogisticsfortours.Brad:Nowwegointobreakoutgroupsandwrapthingsup.Keyscienceandtechmetrics.Samebreakoutroomsasyesterday.Wewon’treconvenefollowingthis.Wewillonlyreconveneforphotosandlunchandtoursfollowing.Britney:(discussingEuropatraceabilitygraphic)Shawnhadideaaboutusingsegmentasbasicshape.Usingcolorthroughoutdocument.WithClipperwehadthree“pillars”thatshowedupinthreecolorsthroughoutdocument.Decidingwhatexactlythosearewillhelpyoustructurallyorganizedocument.Aki:IsuspectwhatweneedtododuringnextSTDTteleconisreturntooutlineanddealwiththingsyou’vetalkedabout.Onethingsuperquick:dowewanttostickwithbiweeklySTDTteleconsorincreasefrequency?Dave:Haveweeklybutcancelfrequently?Shawn:Maybewhencancelwetrytohitfewtemplatepointsbyemail.We’llgivetheonceamonthHabExdiscussions,upcomingmeetings.Aki:ActiontodevelopSTDTtelecomtemplate.Oksobacktoweekly.Butnotnextweek.NextoneisMay2nd.Brad:Oklet’sgo!

ExoplanetsBreakoutSessionPresent:Vikki,Chris,Courtney,Mark,Nick,Britney,Giada,ShawnChris:Divideintotwoalternativefutures:onewheregroundhasdonealotofworkandknowwhereplanetsareandotheralternativeuniversewherewehavenoinformation.Groundbasedgivesminimummass.Manynotterrestrials.Nick:Forterrestrialsreallymatters.Forgiantsnotmatterasmuch.

Chris:ManythingswillnotbeanEarthmass.EveninscenariowiththemgivingusperfectRVinformation,it’snotperfect.Nick:Astrometryisgreat.TalkofSIM-litetypethingthatcandoEarthsunderabillion.Chris:Onplansanywhere?Vikki:Whichcountry?Nick:US.Courtney:Peter’swaspartiallyfunded.Nick:ExoPAGdidwhitepaper.HealthyGround/Space Noapriori MetricsRVAstrometry-candidates-prioritize

BlindsearchMultiplerevisits,overheadsColors,brightness,orbittestsGrism,lowresH2O,CH4HighrescharacterizationCO2,O2

#HZcharacterized#planetshowwellorbits,architecturetimefamilyportraitsspectra(hierarchy:detected,achievedR=50,highresfiberfed)

Mark:Evenforblindwemayhavesomeinfoe.g.Jupitersat3AU.Nick:Solvedproblem.Chris:Ifyouseeplanetsgotherefivemoretimes.KeepsincreasingHZyield.Vikki:Wedon’ttrustcolors.

Giada:Colorsoktomaybetrackseparateobjectsacrossvisits?Althoughphasecolorchangeconsiderationscomeintoplay.Trackmethane/h2obandat1.1um?Mark:Colordidn’tevenworkforbrowndwarfs.Mark:Grismwouldbevaluable.Chris:Logictestswithtwoobservations.E.g.thisplanetconsistentwiththisorbitbutI’mskepticalofthatbecausesemimajoraxisisunknowntobetterthan10-20%unlessyouhavefourepochs.Thesetestsroughascolor.Nick:Justneedtwoepochstoseparatefrombackgroundobjects.Oncemovingknowtheyareplanetssoyoukeepvisiting.Mark:Howlongtodigdarkhole?Giada:Lowresspectraandpicktargetsyouimmediatelywanttointegrateon?Chris:IfhaveIFSgetlowresspectra.Atsomepointchoicecomesifyouwanttodohighresspectra.That’swhatimpactsyieldgreatly.Coronagraphingeneralhaslowerthroughput.Somethingascostlyasspectralcharacterizationtakesupahugechunk.Vikki:Arebrowndwarfsalwaysbrighterthanplanets?Courtney:Browndwarfsusefultoo!Vikki:ButthereisnoIFUonboardanymoresothat’sdifficult.Nick:Aren’twesupposedtoundowhatIDLdid?Mark:WFIRSTwillhaveR=50inoptical.Nick:Ifdiggingdarkholeislargeamountoftimeyoualwayswantspectra.Chris:Diggingdarkholeexpensive.Changingfilterisnotasexpensive.Vikki:Isn’tthisacaseforgettingcrudespectrum.Mark:Canweputgrismin?(lotsofdiscussionaboutwantingIFU/grism)

Nick:Sparsefield.IfyoulookatNIRISSforJWST,ifyoulookatacraploadofgalaxiesandsmearthemout…it’sastronomicallyunlikely.Chris:Nyquistsampledplanetsclosetogether.Difficult.Shawn:IfwefigureoutwhatRweneed,thatisuseful.WeprobablywanthighresspectrumofmostplanetseveniftheyarenotEarths.Chris:NicethingaboutlowresIFSwithfiberisyouhavesomesortofspectralredundancy.Iffiberefficientyoucandoeverythingwithfiberafteryouknowwhatlookingat.Nick:SomesortofIFScrucial.Shawn:IfwedesignIFUasprelimcharacterizationtooltofindwhatwe’redoingdeepdiveon.That’sdifferent.Giada:HowhighrescanwegetonIFU?Chris:R=50reasonable.OWA30lambda/D.Shawn:Stateofart64x64arraygives30lambda/Darrays.Mark:SovaluablewecanlivewiththathittoOWAShawn:TradeofOWAvsIFU.Nick:Ithinkit’sworthitforIFU.Especiallyinnoaprioricategory.Willhelpwhatyou’relookingat.Ifyougetsnapshotsofspectraforeverything.Chris:IfwegowithAPLCyouhavetochoosemaskwithgivenOWA.That’s10lambda/D,20lambda/D,30lambda/D.Alreadylimitingbasedoncoronagraph.Courtney:Canalsogolookatstarsfartheraway.Shawn:AssumeforsakeofdiscussionwegowithIFUres=50andOWA=30lambda/D.Mark:Evenifonlylooksathalfthefield.Nick:Stillsomuchbetterthanmovingfiberonly.Vikki:Canfibersamplebackground?Doyouhavetodoskybychoppingoff?Courtney:Usefultohavetwofibersincaseonehasmalfunction.

Shawn:Onlythingwecan’tdoisgettwospectraoftwospecificpixels.Yousteerlightontofiber.Vikki:Rotationtohelpposition?Shawn:Notsure.Courtney:Mdwarfstendtohave5-6planetseach.Nick:Mostsystemslikelytohavemultiples?Courtney:Yes.Nick:IFUusefulinthosecases.Chris:Planetstendtobeinmultiplanetsystems.Opensupnewscienceifexpensivetomovefiberaround.Lowresspectrausefulforcorrelationsbetweentypesofplanetsinsystems.Shawn:WhatifyouhaveIFUinvisible?(nowlotsofdiscussionofdiachroicsandwavelengthrangesofchannelsanddesireforvischanneltoextendto1.2um)Giada:Lotsofvalueifwe’regettingjustonechannelintheIFUifvischannelwentfrom0.6to1.2um.Visibleisbasicallyfeaturelessformanyplanets.Vikki:Yes.Mark:WehavetopushalotharderforIFU/grism.Shawn:Therewilllikelybeoneon9m.AlmostcertainlyIFU.Mark:Whatdowewantformetrics?Chris:Differentlevelsofcharacterization.Detection,differentlevelsofspectra.Shawn:Infographicofpyramid.Widthoftriangleinanygivenlayer…Chris:Wanttovisualizefordifferenttypesofplanets.Stripedpyramid.Nick:SNRinsomedeltaT.Vikki:WouldbenicetoknownumberofdeltaT.

Shawn:Naturalfocusongoldensystems.Notusewealthofinfoonotherthings.Courtney:Hierarchyofneeds!Mark:Thankseveryoneforthis.

CosmicOriginsBreakoutSessionNotesmissing.

TechnologyBreakoutSessionNotesmissing.GROUPPHOTOANDENDOFMEETING