jet propulsion laboratory california institute of technology afta coronagraph recommendation process...
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Jet Propulsion LaboratoryCalifornia Institute of Technology
AFTA Coronagraph Recommendation Process
Gary Blackwood, Exoplanet Exploration Program ManagerJet Propulsion Laboratory, California Institute of Technology
EXOPLANET EXPLORATION PROGRAM ANALYSIS GROUP #8, Denver CO
October 5, 2013
1Copyright 2013 California Institute of Technology. Government sponsorship acknowledged
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ExoPlanet Exploration Program
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AFTA Coronagraph Recommendation
Why: In response to NASA Administrator’s guidance, and Astrophysics Director’s Implementation plan, AFTA must produce a compelling and viable mission concept including coronagraph within guideline budget and schedule for• 2015 Mid-decadal review• FY17 potential new mission start
What:• Use limited funds to focus design and technology investments• Technology funds for AFTA will be directed not competed• Choose primary and backup coronagraph technology
AFTA = Astrophysics-Focused Telescope Asset
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ExoPlanet Exploration Program
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Background
• January 6 2013: ExoPAG#7 endorses coronagraph for AFTA• May: Steering Group formed by Program Office to anticipate possible follow-up
actions to Administrator briefing• May 30: NASA Administrator gives permission for AFTA pre-formulation
activities including a coronagraph• June 20: AFTA Coronagraph Working Group (ACWG) Charter signed by NASA
Headquarters, identifying Members.• July 23-25: AFTA Coronagraph Workshop (ACW)#1 held in Princeton• Aug-September: Instrument Team builds analysis tools for comparative
analysis. Advocates produce designs• September 9,10: AFTA Science Definition Team (SDT) meeting• September 16: Initial briefing by Program and Study Office to Technology
Analysis Committee (TAC) • September 25-27: ACW#2 held at JPL
– Preliminary science requirements and evaluation criteria established• October 5: Briefing to ExoPAG#8 on AFTA Coronagraph by Program Office
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Approach to Recommendation
• Objective: Recommend a primary and backup coronagraph architecture to focus design and technology development leading to mid-decadal review and new mission start
• Recommendation by ExEPO and ASO based on inputs from– SDT: Sets the science requirements– ACWG: Delivers technical FOMs and technology plans
> Aim for the positive: a consensus product> SDT delivers science FOMs
– TAC: Analysis of technical FOM, TRL readiness plans, and risks
• ExEPO and ASO recommendation to APD Director based on:– Technical and Programmatic– Musts (Requirements), Wants (Goals), and Risks– Distinguish description from evaluation
• APD Director will make the decision
ACWG = representatives of ExEPO, ASO, SDT, Community
How do we define a successful outcome?
FOM = Figure of Merit
TAC:Alan Boss (Carnegie Mellon)Joe Pitman (EXSCI)Steve Ridgway (NOAO)Lisa Poyneer (LLNL)Ben Oppenheimer (AMNH)
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ExoPlanet Exploration Program
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ACWG Membership
• These represent Program, Study Office, SDT, and Community:
• Additional consultants participate at request of Steering Group
Members:Jeremy Kasdin (Princeton U)Mark Marley (NASA ARC)Marc Clampin (NASA GSFC)Olivier Guyon (UofA)Gene Serabyn (NASA JPL)Stuart Shaklan (NASA JPL)Remi Soummer (STScI)John Trauger (NASA JPL)Marshall Perrin (STScI)Feng Zhao (NASA JPL)Rick Lyon (NASA GSFC)Dave Content (NASA GSFC)Mark Melton (NASA GSFC)Cliff Jackson (NASA GSFC)John Ruffa (NASA GSFC)Jennifer Dooley (NASA JPL)Mike Shao (NASA JPL)
Workshop Organizers:Gary Blackwood (NASA JPL)Kevin Grady (NASA GSFC)Peter Lawson (NASA JPL)
Steering Group:Scott Gaudi (OSU)Neil Gehrels (NASA GSFC)Dave Spergel (Princeton U)Tom Greene (NASA ARC)Chas Beichman (NExScI)Jeff Kruk (NASA GSFC)Karl Stapelfeldt (NASA GSFC)Wes Traub (NASA JPL)Bruce MacIntosh (LLNL)
Charter
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Recommendation Criteria:Defining a Successful Outcome
MUSTS (Requirements): Go/No_Go
1. Science: Does the proposed architecture meet the baseline science drivers?
2. Interfaces: For the baseline science, does the architecture meet telescope and spacecraft requirements of the observatory as specified by the AFTA project (DCIL1)
3. Technology Readiness Level (TRL) Gates: For baseline science, is there a credible plan to be at TRL5 at the start of FY17 and at TRL6 at the start of FY19 within available resources?
4. Is the option ready in time for this selection process?
WANTS (Goals): Relative to each other, for those that pass the Musts:
5. Science: Relative strength of science beyond the baseline
6. Technical: Relative technical criteria- See details
7. Programmatic: Relative cost of plan to meet TRL Gates
RISKS and OPPORTUNITIES
- See details1DCL = Dave Content Interface List
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Option Space
• Six architectures being considered:1. Shaped Pupil Kasdin2. PIAACMC Guyon/
Belikov3. Hybrid Lyot Trauger4. Vector Vortex Serabyn5. Visible Nuller – DAVINCI Shao6. Visible Nuller Coronagraph– Phase-Occulted Lyon
• Some hybrids may emerge through the design process – in order to best satisfy the success criteria
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ExoPlanet Exploration Program
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Evaluation Criteria
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ExoPlanet Exploration Program
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Product of ACWG:Comparative Analysis
CoronagraphAdvocates
ASO Coronagraph Instrument Team
ExEPO Chief Technologist
SDTDesigns Technical FOM
Science FOM
TRL Assessment
TechnologyPlans
Sensitivities / Other
Optical Model
Science Baseline Requirements
SDT
TAC ExEPOASO
APD DD
Decision
An
aly
sis
Recom
men
dati
on
FOM = Figure of MeritASO = AFTA Study OfficeExEPO = Exoplanet Exploration Program Office
You Are Here
Technology Manager
TechnologyDescription
Plan Viability
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ExoPlanet Exploration Program
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Top-Level Schedule
FY13 FY14
July August September October November December January
Milestone Completed Milestone Review Completed Review
Rev. 10/3/2013
Coronagraph Architecture Prioritization Top Level Schedule
ACWG Events
SDT Baseline & Threshold Reqmts
Advocates Optical Designs Technology Plans TRL AssessmentsCoronagraph Instrument Team Simulations Sensitivities
ExEPO Chief Technologist TRL Assessment
TAC
ExEPO / ASO ExEPO/ASO Recommendations to APD Briefing to HQ HQ Decision HQ's Annoucement at AAS
ACW #1at Princeton
ACW #2at JPL
ACW #2.5(Telecon)
ACW #3TBD Location
12/6
ACWG FinalBriefing to TAC
8/8 8/21
8/28
9/4
9/13 9/23
10/2
10/910/30
ExoPAG at Denver
SDT Meeting at GSFC 10/2 Science FOM #1
10/30Science FOM #2
9/24Draft
9/30Prelim
9/30 Prelim10/22
Final
9/25 Prelim11/5
Final
11/11Final
10/29Prelim
11/21 Final
10/28Prelim
9/25 Prelim 11/21 Final
9/1610/2
BriefTAC
10/30BriefTAC
BriefTAC
12/6
Deliver Analysisto ExEPO & ASO
12/13
12/13
12/31
1/7
23-25th 25-27th 24-25th
5-6th
Telecons
TBR
GlossaryACWG - AFTA Coronagraph Working GroupACW - AFTA Coronagraph WorkshopTFOM - Technical Figure of MeritSFOM - Science Figure of MeritTRL - Technology Readiness LevelSDT - Science Definition TeamTAC - Technology Analysis Committee
9-10th
21-22nd
21-22nd
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ExoPlanet Exploration Program
Acknowledgements
This work was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.© 2013. All rights reserved.
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ExoPlanet Exploration Program
12The technical data in this document is controlled under the U.S. Export Regulations, release to foreign persons may require an export authorization.
BACKUP
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AFTA Coronagraph Workshop (ACW) Series Charter
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ExoPlanet Exploration Program
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AFTA Coronagraph Workshop (ACW) Series Charter