Data Challenge II Planning

The planned kickoff date for DC2 is mid February 2005. Steve gave an initial look at DC2 planning at the DC1 Closeout meeting.

Challenges

• generating 1-day's backgrounds; sampling them.
• adding deadtime to Gleam
• some Quicklook capability
• working the GBM into DC2
• smooth data transfer to the SSC
• validated Gleam & sky model
• updated background rejection/PSF cuts
• updated IRFs
• improved code distribution

In order to get there, we need/want the following:

• Gleam
  • update and validate the FSW Onboard Filter
  • add deadtime in some fashion
  • perform validations as deemed necessary
    • upgrade System Tests for better diagnostics
  • update background rejection analysis
    • include Classification Tree, and mechanism to use Insightful Miner output
  • complete performance evaluation and parameterization
  • improve Cal energy sim/reconstruction
  • add event interpretation algorithm and output
  • enable ACD failure modes
  • make sure it is possible to enable failure modes in all subsystems
  • revisit final analysis ntuple (merit and FT1)
  • create an analysis platform for the event-based analysis

• Processing Pipeline & related tools
  • be able to generate the DC data via the Level 1 pipeline and populate the dataset database
  • create web interface to show available data
  • create tools to efficiently prune and concatenate the output datasets; update LAT Data Server to use these tools
• Sources and Orbit simulation
  • Phony ephemerides for pulsars in D4 format
  • Improved albedo sources (currently does not have directional variations)
  • First generation LAT interstellar emission model
  • Improved orbit/attitude simulation
  • implement and test variable fluxes
    • AGN, pulsar
• Science Tools
  • Likelihood updates
    • Implement zenith angle cuts
    • Implement finite energy resolution - also understood but not yet implemented
    •  Study performance tradeoffs vs. execution speed for various approximations
    •  Implement source model definition tool (w/ catalog access)
    • Make utility to calculate exposure maps (likely related to makeExposureCube)
    • Undertake statistical tests of likelihood analysis
  • Response Functions
    • Latest reconstruction/background rejection/classification
    • Improved characterization
    • CALDB interface
  • Pulsar Tools
    • Decide what LAT-specific tools are needed (vs. existing FTOOLS)?
    • Resolve open issues in definitions of ephemerides
  • GRB tools [below is a placeholder]
    • What LAT-specific is needed?
    • What are the odds of getting a uniform simulation so GBM and LAT data can correspond to the same burst? How about joint analyses in XSPEC?
  • Event display
    • In progress (Fox and Ruby ok w/ HEASARC?)
  • Data server
    • High-performance server for event summaries at SLAC, with integration between low-level and event summary files
    • Data subselection utility (next generation, with plotting)
  • Infrastructure
    • tip (what further development is needed?)
    • GUI? - where does sane fit in?
    • Integrated plotting? (PyROOT?)
    • Science tools system tests (Jim has a start)
    • Installer - software distribution (Pat has been investigating candidates)
• Documentation and Tutorial
  • document TDS & Root output classes
  • document installation and use of analysis platform
  • update sample analysis
  • update user tutorial

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Tracy Usher - Last Modified: Monday, August 29, 2005