Transcript Simulation

GLAST LAT Project
Science Tools Workshop, June 12-14, 2002
Observation simulation: What we decided
• Study O1 (Livetime/pointing simulator) and O2 (High-level
observation simulator)
• Decide to evaluate in detail by building a trial example: between
U. Washington and Perugia, we have >2 FTE.
– Something is needed soon for other tools
– Validate use of Gaudi structure
– Allow refinement of requirements
• Many elements already exist in the current simulation
• Gino already has a model, code for several elements
• We think it can be implemented in the Gaudi framework by the
end of summer.
Observation simulation: T. Burnett, G. Tosti, S. Bansal, S. Robinson
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GLAST LAT Project
Science Tools Workshop, June 12-14, 2002
Work to do
• FITS service: wrapper around the FITSIO package – Sandhia and
Heather
• Orbit model: verify current model, perhaps enhance
– easy to maintain independent versions if implement as service
• Pointing mode: need to separate from orbit. Also SAA.
• Sources: current scheme is adequate to stand in for U7. New
sources to put into library
– Galactic diffuse (Perugia, from FITS table)
– EGRET catalog + extensibility
• Pointing history
– Generate output summary like D2 table (UW)
• Fast simulation
– use PSF, Aeff model to adjust energy, direction. (Perugia has)
– create D1-like table
Observation simulation: T. Burnett, G. Tosti, S. Bansal, S. Robinson
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GLAST LAT Project
Science Tools Workshop, June 12-14, 2002
Observation Simulation Breakout Session
•
Review use cases and requirements summaries
– Deficiencies in the analysis environment?
– Discuss open issues, assess existing software
– Testing requirements
•
Estimate development requirements
– FTEs & time, including for evaluating open issues, testing,
documentation, by tool or database
•
factor in software that can be reused
– Development support available
– Development order, or priorities anyway
•
Deliverables from conveners
– At wrapup session on Friday: Verbal summary of deliberations –
the highlights
– Shortly thereafter (next week, to SSC-LAT working group): Written
version with details
Observation simulation: T. Burnett, G. Tosti, S. Bansal, S. Robinson
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