Science Operations Plan
NGAO - Meeting 10
D. Le Mignant
W. M. Keck Observatory
09/17/2007
Talking Points
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Picture from the Replan Meeting
Work in the Plan
Priorities
Risk/challenges
2
System Design Approach
System Engineering
Performance budget
Trade Studies
Observing Efficiency
Budget
Observing Models
TS: KAON 476
Science Operations
3.4: Science Ops
Functional Rqts
Main Drivers & Risk Areas
Current LGSAO Operations
Assessment Report: KAON 463
Rationales for Functional and Performance Requirements
Observatory Rqts
Science Operations
Observing Scenarios
Science
Requirements
3
Work in the Plan
• SCRD
– Include/retrofit observing scenarios
– “All-in” science simulations for SCRD
• SRD from the operations perspective
– Science ops requirements
– Observatory overall requirements
• FRD for science operations
– WBS 3.1.3.3.6
• Science operations plan
– WBS 3.4
– WBS 3.2
– WBS 3.5
• Observing efficiency performance budget
– See Science Ops page
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Priorities
1. SCRD
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Include/retrofit observing scenarios
“All-in” science simulations for SCRD
E.g., Requirements for PSF reconstruction
2. SRD from the operations perspective
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Science ops requirements
•
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Based on ??
Observatory overall requirements
•
Based on ??
3. Observing efficiency performance budget
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See Science Ops page
NGS backup science TS?
4. FRD for science operations
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WBS 3.1.3.3.6
5. Science operations plan
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WBS 3.4
WBS 3.2
5
Risk / challenges
• Encounter the same difficulties we have experienced so far:
– Coordination among WBS, particularly for science operations (AO,
laser, Science instrument)
– Finding interested and experienced scientists and engineers for
reviews/discussion of the documents
• Validate/discuss the Operations Model.
– Observatory Requirements for Operations
• Planning operation cost control in the long term
• Data quality, observing efficiency, science data products?
• Strategic Decisions --- Review and agreed by SSC?
• Document the main drivers for the Observing Efficiency budget
• Strategic Planning Document for Keck --> 90% (weather-corrected)
• Build budget from observing timeline
• Telescope, AO, instrument overheads versus performance
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Science Operations Requirements
Mission for the science operations be to: maximize the scientific impact of the TAC
allocated observing time with the NGAO instruments from 2012 to 2020.
• Top-level goals from the science requirements:
1. Science-grade quality of the raw data (image quality per science requirements,
completeness of observations)
2. Science-grade quality of the data products (photometry, astrometry, PSF
knowledge, WCS calibrations)
3. Science impact from a given data product (number of publications and citations)
•
1.
2.
3.
Top-level goals from the observatory:
More than 80% of the time allocated is spent on collecting science-quality data.
The NGAO combined with its science instruments is facility-class instrument.
The Observatory is capable of supporting the equivalent of 240 nights/year for
NGAO science operations.
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