Instrument Operations Center IOC and Science Analysis Software SAS

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Instrument Operations Center (IOC)andScience
Analysis Software (SAS)
Scott Williams Hanson Experimental Physics
Laboratory (HEPL) Stanford University Scott.Willia
ms_at_stanford.edu R.Dubois Stanford Linear
Accelerator Center Stanford University Richard_at_sla
c.stanford.edu

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IOC and Science Analysis Software
Outline

• IOC SAS functions
• Organization
• Short and Longer Term Work Plans
• Cost Summary
• Issues

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Mission Operations Architecture
LAT Instrument Operations Center
From the GLAST Operations Concept Document
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GLAST Mission Operations Functions
Summarized from Ground Systems Functional
Allocation Team Study
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IOC Formulation Schedule
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Science Data Processing

• Receive Level 0 data from IOC
• Automatically process Level 0 data to Level 1
• Facilitate LAT monitoring and updates of
  calibrations
• Feed back high level monitoring info to IOC
• Generate Monte Carlo for instrument simulation,
  algorithm development etc

• Allow for data reprocessing
• Generate high level data products
• Develop analysis tools and platforms
• Deliver data products and algorithms to SSC
• Protect via archive all data, at SLAC and HEASARC

3GB of data arrives per day
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The Critical Areas

• Simulation/reconstruction software
• Instrument simulation and reconstruction
• PSF, Aeff, background rejection
• Supports instrument design and science studies
• Infrastructure
• Code framework
• Code/release management
• Documentation
• Good practices and the glue that holds the
  software together

• Level 1 Data Processing
• Production data and MC processing
• Near real-time feedback to IOC
• Supports detailed performance tracking Mock Data
  Challenges input to Science
• Science Analysis tools
• High level utilities
• Supports extraction of Science from the data

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Timeline
MDC
CY
Balloon
GlastSim/G4 Event Display
Release Manage
Performance Tuning, Tracking
Data Production Facility .
near real-time monitoring
Calibrations
Event DB Technology Design
Science Tools, Analysis Platforms
Polishing maintenance post-launch panic
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Group Communications
use cvs for distributed code development Reposito
ry at SLAC
use web conferencing tools for meetings Weekly
General, Core CAL soon TKR Used for impromptu
discussions
use instant messenger tool for quicky discussions
Use MS NetMeeting for point-to-point
discussions and Windows remote debugging via
desktop sharing
Software Weeks every 4 months
software team is integrated subsystem folks are
matrixed between subsystem and software group
part of same development process as other
components of software
Core working meeting between Software Wks
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IOC WBS Organization
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SAS WBS Organization
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LAT Simulation Recon Software Flight Proposal
Baseline
100 MeV g
TKR
2, 25, 40 GeV e-
CAL
0.1, 7 GeV g
15 GeV proton
Well-developed photon recon, background rejection
algorithms - part of the project effort since
93.
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Status

• IOC is in formulation phase through FY01
• Improving Simulation and Reconstruction
• Addressed infrastructure issues in 2000/2001
  support for the long run
• Providing balloon flight and PDR preparation
  support through summer 01
• Continuing with requirements and specifications
  for science tools and calibrations, with first
  prototypes this year

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SAS Issues

• Heavy load on team to support both the balloon
  flight and PDR prep
• Need additional 2-3 FTE for core and DPF work
• Toby Burnett has pending NSF request
• Extremely important to our effort that it
  succeed!!
• European Japanese collaborators have committed
  to supporting the core effort
• Want major Sim/Recon release by late 2001 to let
  us shift focus to Calibrations and analysis
  issues
• Need to get started on Data Processing Facility
• Balloon PDR support as early prototyping
  opportunities
• Mock Data Challenge in mid 2002
• Technology for event, photon exposure databases
  and techniques for indexing the photons (time,
  spatial tessellations)
• Studies underway to evaluate technologies

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IOC Milestones

• Instrument Operations Center (IOC) Requirements
  Review 04/18/01
• LAT Instrument PDR 08/06/01
• IOC PDR 08/22/01
• LAT Instrument CDR 08/05/02
• IOC S/W Release 1 07/28/03
• IOC CDR (TBR) 08/04/03
• IOC S/W Release 2 12/18/03
• Calibration Unit Beam Test Complete 02/05/04
• LAT Ops Facility Validation Verification
  Complete 06/21/04
• LAT TV Test Complete 08/26/04
• Ground Systems Compatibility Test
  (TBR) 11/21/04
• Mission Sequence Test (TBR) 03/21/05
• End-to-end Test (TBR) 06/21/05
• Launch 09/05
• LAT Checkout Complete 30 days (TBR)

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4.1.B LAT Instrument Operations Center
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Interim IOC Cost Estimate
(Escalated K)
DOE/NASA funding.
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Science Analysis Software Milestones

• Science Analysis Software (SAS) Requirements
  Review 04/25/01
• Instrument Simulation/Event Recon Release (to
  support PDR) Management Verification in
  place 06/01/01
• LAT Instrument PDR 08/06/01
• Science Analysis Software PDR 09/05/01
• Complete Mock Data Challenge CDR
  run-up 07/15/02
• LAT Instrument CDR 08/05/02
• Science Analysis Software CDR 09/04/02
• Implement production version of Data Production
  Facility 06/01/04
• End-to-end testing, final Mock Data Challenge
  complete 06/01/05

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4.1.D Science Analysis Software
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Interim Science Analysis Software Cost Estimate
(Escalated K)
DOE/NASA funding.
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Summary

• Simulation and reconstruction are in excellent
  shape for this stage of the project
• Needed infrastructure improvements for long-term
  support and development are well underway
• Will be a challenge to support the balloon and
  PDR
• Plan for required science analysis calibration
  and high level tools
• In progress
• Workplan in place in process of loading into
  PMCS
• Requirements, initial QA/QC this summer
• Mock Data Challenge in mid 2002
• Prototype IOC, Processing Facility and Event DB