HSTproposal–d.grodent@ulg.ac.be-JunoScienceTeamMee;ng2016March7-11

HSTLargeProposalinsupportoftheJunocoremission

d.grodent@ulg.ac.beb.bonfond@ulg.ac.bejc.gerard@ulg.ac.be

HSTproposal–d.grodent@ulg.ac.be-JunoScienceTeamMee;ng2016March7-11

HST-STISisprovidingcontextualUVimages/spectraforinsituJunoinstrumentsandcomplementsUVS

HSTproposal–d.grodent@ulg.ac.be-JunoScienceTeamMee;ng2016March7-11

Proposalstatus-8March2016

FirstDraOofScienceCaseready•  tobedistributedamongpoten;alco-Is•  ~156poten;alHSTorbitspre-selected(shouldreduceto~90)•  HSTsciencejus;fiedvsJunoscience

(avoidredundancieswithUVS)•  pendingques;ons(;ming,insituinstr.,…)

HSTLargeGOproposal:-HSTorbits>75-Pagelimitforthetextofthescien;ficjus;fica;on=6(currently:6!)-TotalpagelimitforPDFabachmentincl.figures,tables,references=11Fullreferencesdonotcountintotal-Deadlineforproposalsubmission(APT):April8,2016,8PMEDT

Scientific Justification

Description of the Observations

Special Requirements

Coordinated Observations

Justify Duplications

1

HST proposal template

HSTCycle24

10/1/2016–9/30/2017

Opposi;on(bestviewfromEarth:PJ14)

Opposi;on+/-2Junoorbits(ideal:PJ12-PJ16)

betweenquadratures(allowed:PJ8-PJ20)

betweenquadratures(allowed:PJ8-PJ20)

Solaravoidance(forbidden:PJ24-PJ32)

Solaravoidance(forbidden:PJ0-PJ3)

Possible(notrecommended)PJ21-PJ23

Possible(notrecommended)PJ4-PJ7

Jan–Jul20178April2017

HSTproposal–d.grodent@ulg.ac.be-JunoScienceTeamMee;ng2016March7-11

6-monthoverlapwith13Junoorbits(PJ8-20)

HSTcampaignlimitedtoC24

HSTproposal–d.grodent@ulg.ac.be-JunoScienceTeamMee;ng2016March7-11

Scientific Justification - Outline"ThemaingoaloftheproposedHSTprogramistosubstanDallyincreasethesciencereturnoftheJunomissionbycomplemen;ngtheultravioletobserva;onsthatwillbeobtainedwiththeultravioletspectrograph(UVS)instrument."

1 UVS"ON"1.1 Apojove -12-hrmonitoringofauroralac;vity(similartoEXCEED–HSTcampaign)1.2 Perijove(UVSperijovesegment~6hours) 1.2.1 UVSlimita;onsnearperijove 1.2.2 HST-STIS/Juno-UVSComplementarySciencenearPerijove -1.2.2.1 Trans-hemisphericobserva;ons(useasymmetricmagfield) -1.2.2.2 Observa;onsinthesamehemisphere(Xcalib.+shortT-scaleobs.) -1.2.2.3 HST-STISobserva;onsofthemoonsauroras

2 UVS"OFF"2.1 Currentsheetcrossings -Fulldescrip;onofmainandsecondaryemissions+plasmainjec;ons2.2 OneJovianrota;onbeforeandaOertheUVSperijovesegment -Injec;ons+volcanic/torusac;vity2.3 Junoflyingnearsouthernauroralhigh-la;tudemagne;cfieldlines -Polaremissions(flares,swirlanddarkregions)

HSTproposal–d.grodent@ulg.ac.be-JunoScienceTeamMee;ng2016March7-11

Missing:-HST-STISMUVobserva;onofPAH

(insert1secNUV-MAMAimage)OKifacceptedbySTScI(currentlyforbidden)

-ChandraX-rayparallelobserva;ons

AllocatedCXO;me: 72ks inCycle17 144ksinCycle18 72ks inCycle19

-HISAKI…

3poten;alCXOslotsduringHSTperiod:PJ11,13,20

HSTproposal–d.grodent@ulg.ac.be-JunoScienceTeamMee;ng2016March7-11

12poten;alHSTorbitsduringJunoOrbitPJ14

1Jovianrota;onbefore/aOerperijovesegment

Currentsheetcrossings

PerijoveSegm

ent

Perijove+/-6

hrs

Highestmagne;cla;tude

Apojovesegment

Restrictto~7HSTorbitsperJunoorbit!Dependingonviewinggeometry

Rho[RJ]

Zmagne

;c[R J]

HSTproposal–d.grodent@ulg.ac.be-JunoScienceTeamMee;ng2016March7-11

12poten;alHSTorbitsduringJunoOrbitPJ14

Restrictto~7HSTorbitsperJunoorbit!Dependingonviewinggeometry

Rho[RJ]

Zmagne

;c[R J]

HSTproposal–d.grodent@ulg.ac.be-JunoScienceTeamMee;ng2016March7-11

PJ14ViewingGeometry(CMLconstraint)

1-wayLT~40min

HST

HSTproposal–d.grodent@ulg.ac.be-JunoScienceTeamMee;ng2016March7-11

ProvideTable:JunoOrbitvsHSTorbit(N=North,S=South)

PJ8 PJ9 PJ10 PJ11 PJ12 PJ13 PJ14 PJ15 PJ16 PJ17 PJ18 PJ19 PJ20

1 N N

2 S NSN

3 S

4

5

6 S N

7 N S

8 N

9 N N

10

11 S

12 NMoons Eu,Ga

Total 5 8 4

1Jovianorbitbefore/

aOer

Highla;tude

ApojoveSegment

Keepthe"details"forPhaseII

MoonsAuroras

CXO CXO CXO

HSTproposal–d.grodent@ulg.ac.be-JunoScienceTeamMee;ng2016March7-11

PendingQues;ons

•  AreJADEandJEDIobservingduringeachcurrentsheetxing(adozenperJunoorbit)?

•  Whatkindofinforma;oncanwederivefromLow-ResJADEandJEDImonitoring?Sufficientforauroralscience(e.g.highla;tudeHSTorbit)?

•  JADEandJEDIreallyalways"On"?•  IncludeMAGandWAVESinHSTsciencejus;fica;on?(mightneed

somehelp,butalreadyreachedpagelimit)

•  UVSobservingcon;nuouslyduringperijovesegmentorslicedbytelemetry,S/CmemoryandDarknoise?

•  LengthoftypicalUVSuninterruptedseq.?~10min?•  IncludeMUVobserva;onsofstratospherichaze(whitepaper)?•  AssumesimultaneousHISAKIobserva;ons(Kimura)?•  MaxnumberofCo-Is(<20),Supporters?•  NeedsupportleberfromMissionPI!•  …

HSTproposal–d.grodent@ulg.ac.be-JunoScienceTeamMee;ng2016March7-11

Thankyouforyourhelp!

HSTproposal–d.grodent@ulg.ac.be-JunoScienceTeamMee;ng2016March7-11

HSTMUVWhitePaper

! 1!

Observing!Jupiter’s!polar!stratospheric!haze!with!HST/STIS.!An!HST!White!Paper!!

!Denis!GRODENT,!Bertrand!BONFOND!

Laboratory(for(Planetary(and(Atmospheric(Physics(Université(de(Liège,(Belgium!

!Jonathan!NICHOLS!

Physics(and(Astronomy(Department(University(of(Leicester,(UK!

!d.grodent@ulg.ac.be!11!August!2015!

!1.!ABSTRACT!!

The! purpose! of! this! HST!white! paper! is! to! demonstrate! that! it! is! possible! to!monitor!Jupiter’s! polar! haze! with! HST/STIS! without! breaking! the! ground! screening! limit! for! bright!objects.! This! demonstration! rests! on! a! thorough! simulation! of! STIS! output! from! an! existing!image!obtained!with!HST/WFPC2.!It!is!shown!that!the!STIS!NUVWMAMA!+!F25CIII!filter!assembly!provides! a! count! rate! per! pixel!~11! times! smaller! than! that! obtained! for! one!pixel! of!WFPC2!WF3!CCD!+!F218W!corresponding! filter.!This! ratio! is! sufficiently! large! to!cope!with! the!bright!solar!light!scattered!by!Jupiter’s!atmosphere,!which!was!a!lesser!concern!for!WFPC2!CCD!safety.!These!STIS!images!would!provide!unprecedented!spatial!and!temporal!resolution!observations!of! smallWscale!stratospheric!aerosol!structures,!possibly!associated!with! Jupiter’s!complex!FUV!aurora.!

!!!

Figure' 1:! Simulated! STIS! NUVWMAMA! image! of! Jupiter’s! northern!polar! region! obtained! by! scaling! an!existing! WFPC2! (WF3)! image.! The!color! table! provides! adjusted! count!rates! in! counts! per! sec! per! STIS!pixel.!The!image!illustrates!the!large!absorption! of! MUV! light! by!stratospheric! haze! in! the! polar!region! that! makes! it! possible! to!safely! observe! this! part! of! Jupiter’s!MUV! disk.! It! also! shows! the!stratospheric! haze! structures! (hues!of! violet)! that! might! be! associated!with! auroral! precipitation.! In! this!simulated! image,! the! global! count!rate! is! 61,121! counts.sW1;! that! is! 3.3!times! lower! than! the! screening!global! limit.! (Bright! dots! are! traces!of!WFPC2!cosmic!rays).!! !

PolarstratospherichazeHeavyhydrocarbonsPolycyclicAroma;cHydrocarbons