glast large area telescope isoc overview and statusdoe annual review, 13 june 2007 1 glast large...

GLAST Large Area Telescope – ISOC Overview and Status DOE Annual Review, 13 June 2007

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GLAST Large Area TelescopeGLAST Large Area Telescope

Instrument Science Operations CenterOverview and Status

Rob CameronStanford Linear Accelerator [email protected]

Gamma-ray Large Area Gamma-ray Large Area Space TelescopeSpace Telescope


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OutlineOutline

GLAST Mission Operations Elements ISOC Functions and Organization Flight Operations in the ISOC Science Operations in the ISOC Pre-launch Operations Testing ISOC Facilities at SLAC Summary


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GLAST MISSION ELEMENTSGLAST MISSION ELEMENTS

GN

HEASARCGSFC

-

-

DELTA7920H •

White Sands

TDRSS SNS & Ku

LAT Instrument Science Operations Center

GBM Instrument Operations Center

GRB Coordinates Network

• Telemetry 1 kbps•

-•

S

Alerts

Data, Command Loads

Schedules

ArchiveMission Operations Center (MOC)

GLAST Science Support Center

• sec•

•

•

GLAST Spacecraft

Large Area Telescope& GBMGPS

GLAST MISSION OPERATIONS ELEMENTS


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LAT ISOC ActivitiesLAT ISOC Activities

The LAT ISOC is organized to:– Operate the instrument, in conjunction with other GLAST ground

elements– Generate reconstructed LAT events and automated science

products Main Functions:

– LAT command planning and construction– Instrument health and safety monitoring– Maintain and modify LAT FSW and the LAT Testbed– LAT calibration, performance verification and optimization– Process and archive LAT data– Maintain and optimize the software that produces science data

Incorporates online and offline operations activities for the LAT – Extends existing pre-launch activities into on-orbit operations

Supports the LAT collaboration


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ISOC OrganizationISOC OrganizationISOC

Manager: R. CameronDeputy: E. do Couto e Silva,

Deputy: R. Dubois

Commanding, Health and Safety

L. Bator

Flight Operations

J. Thayer

Science Operations

S. Digel, E. do Couto e Silva

Science AnalysisSystems

R. Dubois

Flight Software

J. Thayer

Support

Admin: D. Nicholson


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Flight Operations: Flight Operations: Preparing for On-Orbit OperationsPreparing for On-Orbit Operations

ETE Date# of

Procedures1 2 3 4 5 6

ETE 1a Apr-07 2 0 0 0 0 2 0ETE 1b Jul-07 8 0 0 0 0 8 0ETE 2 Jul-07 24 0 0 16 8 0 0ETE 3 Aug-07 25 2 0 22 1 0 0ETE 4 Oct-07 46 11 0 16 0 0 0

105 13 0 54 9 10 0

Status by ETE

Current Readiness Level

Real-time commanding of the LAT through the MOC uses scripted PROCs All LAT commands in the T&C database delivered to the MOC are included in

Narrative Procedures (NPs) All procedures to be exercised during GLAST End-to-End tests

– Development schedule is tied to ETE schedule Separate procedures for activities in GLAST Launch and Early Orbit period (L&EO) Contingency procedures included PROCs are verified against LAT testbed before use with GLAST


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Flight Ops: Real-time Monitoring Flight Ops: Real-time Monitoring ISOC supports real-time activities and instrument monitoring during GLAST-to-ground

contacts (~8x per day)– ISOC monitoring tools have LAT I&T heritage– Used in pre-launch End-to-End tests and Mission Simulations


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Flight Ops: LAT Mission PlanningFlight Ops: LAT Mission Planning Toolkit for planning weekly

LAT on-orbit activity schedules

– LAT “Activity” manager– On-board LAT Absolute

Time command Sequence (ATS) builder

– File upload scheduler– Science run scheduler– Real-time PROC

scheduler MP databases

– Orbit data and events– FSW files– LAT PROCs– LAT commands

Tested and rehearsed through GLAST Mission Planning Exercises


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Science Operations: Science Data ProcessingScience Operations: Science Data Processing

Merge EventsExtract Context

Extract EBF

MOC FastCopy

L0 Archive

IngestL0 data

Create digifiles

Analyzecharge injection

data (LCI)

Create recon files andperform event classification

Analyzecalibrationdata (LPA)

MOOD/MOOT(config DB)

Get Calibration from DB

Create data analysis

ntuples

Automated Science

Processing

Data Receiving

Calibrations and L1 processing

Output Data Products to LAT Collaboration and GSSC

Pipeline 2 infrastructure ready for ISOC

– Tested in ETE tests, Service Challenge/ISOC testing


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LAT Collaboration Support for Science OperationsLAT Collaboration Support for Science Operations Data Monitoring

– Pre-Level 1 monitoring, diagnosing low-level processing (INFN Pisa) Calibration of Subsystems

– Tracker (INFN, UCSC)– Calorimeter (IN2P3, NRL)– Anticoincidence Detector (GSFC, SLAC)

Performance Diagnostics and Diagnosis– Subsystem failure simulations (INFN Bari)– Monitoring the high-level performance of the LAT (instrument response

functions, timing) (INFN Perugia, IN2P3 Bordeaux, U. Washington) Automated Science Processing (aspects of)

– Development of GRB detection algorithm (GSFC, Ohio State, U. Denver)– Testing of source monitoring (INFN Perugia)

Background Monitoring– Particle separation (e/p) (Hiroshima U.)

Launch & Early Orbit– LAT Commissioner is J. E. Grove (NRL)– Planning of analyses to be performed in L&EO are being coordinated with

broader LAT collaboration– Core agenda for recent ISOC workshop in April/May 2007

http://confluence.slac.stanford.edu/display/ISOC/ISOC+Workshop+Apr+2007+Agenda


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Science Ops: Instrument Response MonitoringScience Ops: Instrument Response Monitoring Will use celestial sources for monitoring energy scale, energy resolution, PSF

– Tested through Service Challenge/ISOC testing


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Automated Source Processing: Source MonitoringAutomated Source Processing: Source Monitoring


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GLAST Operations TestingGLAST Operations Testing The ground system operates the GLAST observatory in Mission End-to-End

(ETE) tests– Exercise and verify operations interfaces and coordination– Exercise and validate all operations procedures

Apr 3

ETE 1 ETE 2

Basic & Advanced Commanding

ETE 3 ETE 4

Basic & AdvancedOperations

(include contingencies)

ETE 5

Regression Testing,More contingencies

ETE 6

Check out At launch site

AugJul 7,8 Oct Oct Dec

Mar5-11

MPE 1

Aug15-16

MPE 2

Mission PlanningExercises

LEO 1 LEO 2 LEO 3 LEO 4 LEO 5

Launch & Early Orbit (spacecraft)

Mar20-21

Jun26-28

Jul16-20

Sep25-27

Nov7

InstCom 1

InstCom 2

Instrument Commissioning

May15-17

Aug15-16

Mission Simulations are operations rehearsals, not involving the observatory– Mission Planning Exercises simulate weekly mission planning cycle– Instrument Commissioning Simulations rehearse LAT (&GBM) activation

and checkout during 60-day Launch and Early Ops period


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ISOC FacilitiesISOC Facilities Construction of the ISOC operations

support area and expansion of the LAT Dataflow lab were completed in January 2007– Co-located in building 84 with

ISOC staff offices– Ops support area fully populated

with workstations, already in use for GLAST testing

– Dataflow lab ready for installation of LAT calibration unit, returned in April from successful beam test

LAT Cal Unit @SLAC

ISOC Ops Support Area

LAT Dataflow Lab and Testbed


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SummarySummary

An ambitious GLAST ground operations test phase is underway, constrained by remaining Observatory environmental and functional testing– All ISOC elements hard at work preparing for launch and

mission The ISOC involves collaboration participation and support,

particularly in Science Operations and SAS


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Backup SlidesBackup Slides


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3EG 3rd EGRET Catalog µm 10-6 meter IA and DC2 Workshop

Instrument Analysis and Data Challenge 2 Workshop

A ACD The LAT Anti-Coincidence Detector

Subsystem

AGN Active Galactic Nuclei Ahr Amp-hour ATS Absolute Time Sequence ATT/ANC Attitude/Ancillary B BGO Bismuth Germanate Detectors Bkg rej Background rejection C C&A Calibration and Analysis Methods Groups CAL The LAT Calorimeter Subsystem CCB Configuration Control Board CCSDS Consultative Committee for Space Data Systems;

a Spacecraft Packet Telecommand Standard approved by the Consultative Committee for Space Data Systems

CFG Configuration CHS Commanding, Health and Safety CM Configuration Management; also: Center of Mass CMD, Cmd Command CMX CMT (Configuration Management Tool) eXtra CNE NASA’s Center Network Environment Config Configuration COTS Commercial Off-the-Shelf CPU Central Processing Unit CsI (TI) Cesium Iodide crystal doped with Thallium CU Calibration Unit CVS Concurrent Versions System CY Calendar Year

D DAQ Data Acquisition System also: LAT Electronics,

Data Acquisition and Flight Software Subsystem DB Data Base DC Data Challenge Diag Diagnostic Digi Digitized Event Data DOE Department of Energy DPF Data Processing Facility DS Data Stream E EGRET Energetic Gamma Ray Experiment Telescope on

CGRO EGSE Electrical/Electronics Ground Support Equipment EM Engineering Model or Electromagnetic Eng Engineer/Engineering EPO, E/PO Education and Public Outreach EPU Event Processing Unit ETE End-to-end ETech Electrical Technician EU Engineering Unit

ISOC GlossaryISOC Glossary


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H H&S Health & Safety HEASARC High Energy Astrophysics Science Archive

Research Center HEP High Energy Physics HK, HSK Housekeeping HW, h/w Hardware I I&T Integration & Test ICD Interface Control Document INFN Istituto Nazionale Di Fisica Nucleare, (Italy) ISOC Instrument Science Operations Center IS Instrument Scientist IT Information Technology ITAR International Traffic in Arms Regulation ITOS Integrated Test and Operations System

G GASU Global Trigger, ACD, Signal Distribution Unit GBM Gamma-ray Burst Monitor gcc GNU Compiler Collection GCM GLAST Contingency MOC (Mission Operation

Center ) GCN Gamma-ray Burst Coordinate Network GD General Dynamics GEANT4 Detector description and simulation tool GeV 109 electron Volts GFEP GLAST Front-End Processor GIOC GBM Instrument Operations Center GLAST Gamma-ray Large Area Space Telescope GPS Global Positioning System GRB Gamma-ray Burst GRID Computing grid GRT Ground Readiness Test GS Ground Systems GSFC Goddard Space Flight Center GSSC GLAST Science Support Center

J JIRA Bug/issue tracking software K Kbps Kilobits per second keV 103 electron Volts kg Kilogram km kilometer KSC Kennedy Space Center Ku-Band A range of frequencies in the electromagnetic

spectrum, 12 – 18 GHz, primarily used for satellite communications

F FDF Flight Dynamics Facility FES Front-End Simulator FITS Flexible Image Transport System FMX tool for tracking LAT Configuration FOV Field of View FQT Flight Qualification Testing FRED Fox and Ruby Event Display FSW Flight Software FTE Full Time Equivalent

ISOC Glossary (II)ISOC Glossary (II)


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N NASA National Aeronautics and Space Administration NP Narrative Procedures NRL Naval Research Laboratory NSSTC National Space Science and Technology Center

O OMB Office of Management and Budget Ops Operations OSU The Ohio State University

P PDA Personal Digital Assistant PDU Power Distribution Unit PI Principle Investigator PROC Procedure PSF Point Spread Function PVO Performance, Verification, and Optimization

Q

R RDBMS Relational Data Base Management System Recon Reconstruction RMS Root Mean Square RPM RPM Package Manager, a package management

system for installing and updating computer software packages

RT Remote Terminal RWA Reaction Wheel Assembly

L L&EO Launch and Early Orbit L0, L1, L2 Level zero, Level one, Level two data processing L0P Level zero Products LAT GLAST Large Area Telescope LATTE LAT Test Executive LHK LAT Housekeeping LICOS LAT Instrument CheckOut System LISOC LAT Instrument Science Operations Center * LSF LAT Science Format LSG LAT Collaboration Science Groups M m meter M&S Materials & Services Mbps, Mb/s Megabits per second MC Monte Carlo MCR Mobile Computing Rack MeV 106 Electron Volts MGSE Mechanical Ground Support Equipment MILA Meritt Island Launch Annex MOC Mission Operation Center MSFC Marshall Space Flight Center Mtech Mechanical Technician

ISOC Glossary (III)ISOC Glossary (III)


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U UCSC University of California at Santa Cruz UPS Uninterruptible Power Supply USN Universal Space Network

V Verif Verification VME Versa Module Eurocard VRVS Virtual Room Videoconferencing System VSC Virtual Spacecraft

W WIRED BaBar event display WMAP Wilkinson Microwave Anisotropy Probe

S s second S/A Drive Solar Array Drive S-Band A frequency range from 1.55 – 5.2 GHz used for

satellite communication SAA South Atlantic Anomaly SAS Science Analysis Systems SAS Science Analysis Software SASS Spectrum Astro Space Systems SCS SLAC Computing Services sec second SEM Standard error of the mean Si Silicon SIIS Spacecraft Simulator Sim Simulated SIRU Spacecraft Inertial Reference Unit SIU Spacecraft Interface Unit SLAC Stanford Linear Accelerator Center SLC SLAC Linear Collider SNITZ ASP based bulletin board system SNR Super Nova Remnant SO Science Operations SSAC Senior Scientist Advisory Committee SSC Science Support Center SSCS Science Support Center something? SSD Silicon Strip Detector STOL Systems Test and Operations Language SU Stanford University SVAC Science Verification, Analysis and Calibration SW, s/w Software SWIFT Swift Gamma Ray Burst Explorer Mission

T Tl Thallium T&DF Trigger and Dataflow TBD To Be Determined TDRSS, TDRS Tracking and Data Relay Satellite System Telem Telemetry TEM Tower Electronics Module TIM Technical Interface Meeting TKR The LAT Tracker Subsystem TLM Telemetry TOO Target of Opportunity TPG Trigger Pattern Generator

ISOC Glossary (IV)ISOC Glossary (IV)

glast large area telescope isoc overview and statusdoe annual review, 13 june 2007 1 glast large...

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