Science Operations Plan NGAO - Meeting 10 D. Le Mignant W. M. Keck Observatory 09/17/2007

2 Talking Points Picture from the Replan Meeting Work in the Plan Priorities Risk/challenges

3 Observatory Rqts Science Operations Science Requirements Observing Scenarios Observing Models TS: KAON 476 Observing Efficiency Budget System Design Approach System Engineering Science Operations Performance budget Trade Studies Rationales for Functional and Performance Requirements 3.4: Science Ops Functional Rqts Current LGSAO Operations Assessment Report: KAON 463 Main Drivers & Risk Areas

4 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 Science operations plan –WBS 3.4 –WBS 3.2 –WBS 3.5 Observing efficiency performance budget –See Science Ops page

5 Priorities 1.SCRD –Include/retrofit observing scenarios –“All-in” science simulations for SCRD –E.g., Requirements for PSF reconstruction 2.SRD from the operations perspective –Science ops requirements Based on ?? –Observatory overall requirements Based on ?? 3.Observing efficiency performance budget –See Science Ops page –NGS backup science TS? 4.FRD for science operations –WBS Science operations plan –WBS 3.4 –WBS 3.2

6 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

7 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 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) Top-level goals from the observatory: 1.More than 80% of the time allocated is spent on collecting science-quality data. 2.The NGAO combined with its science instruments is facility-class instrument. 3.The Observatory is capable of supporting the equivalent of 240 nights/year for NGAO science operations.