Instrument Operations Center (IOC) and Science Analysis Software (SAS)

1. Instrument Operations Center (IOC)andScience Analysis Software (SAS) Scott Williams Hanson Experimental Physics Laboratory (HEPL) Stanford University Scott.Williams@stanford.edu R.Dubois Stanford Linear Accelerator Center Stanford University Richard@slac.stanford.edu

2. IOC and Science Analysis Software • IOC & SAS functions • Organization • Short and Longer Term Work Plans • Cost Summary • Issues Outline

3. Mission Operations Architecture LAT Instrument Operations Center * From the GLAST Operations Concept Document

4. GLAST Mission Operations Functions Summarized from Ground Systems Functional Allocation Team Study

5. IOC Formulation Schedule

6. 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 Science Data Processing ~ 3GB of data arrives per day

7. 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 • Event database technology • Extraction of science/sharing with SSC The Critical Areas

8. 2001 2002 2003 2004 2005 2006 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

9. Group Communications use cvs for distributed code development Repository 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

10. IOC WBS Organization

11. SAS WBS Organization

12. LAT Simulation & Recon Software –Flight Proposal Baseline TKR 100 MeV g 2, 25, 40 GeV e- CAL 0.1, 7 GeV g Well-developed photon recon, background rejection algorithms - part of the project effort since ’93. 15 GeV proton

13. Status • IOC is in formulation phase through FY’01 • 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

14. 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

15. 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)

16. 4.1.B LAT Instrument Operations Center

17. Interim IOC Cost Estimate* (Escalated K$) *DOE/NASA funding.

18. 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

19. 4.1.D Science Analysis Software

20. Interim Science Analysis Software Cost Estimate* (Escalated K$) *DOE/NASA funding.

21. 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