1. Integration and Test Organization Chart
I&T Manager
Elliott Bloom
WBS 4.1.9
I&T Engineer
B. Grist
WBS
Reliability & QA
D. Marsh
WBS
Instrument Operations
Coordinator
S. Williams
Mechanical Ground
Support Equipment
TBD
Online Manager
R. Claus
Integration, Facilities,
Configuration, and Test
L. Wai
Particle Test Manager
G. Godfrey
Environmental Test
Manager
M. Lovellette
Science Verification,
Analysis, and Calibration
E. do Couto e Silva
I&T Preparation
EM1 Model I&T
Calibration Unit I&T
Flight LAT I&T
Mission I&T Support
I&T Preparation
EM1 Model I&T
Calibration Unit I&T
Flight LAT I&T
Mission I&T Support
I&T Preparation
Flight LAT I&T
Mission I&T Support
I&T Preparation
EM1 Model I&T
Calibration Unit I&T
Flight LAT I&T
Mission I&T Support

2. Integration and Test Activities
I & T “subsystem” is focal point of LAT integration activities
I & T team plans and manages activities.
TKR, CAL, and ACD subsystem teams provide support for Integration & Calibration.
Total effort involves:
I & T Subsystem
LAT integration planning and management.
Mechanical integration and GSE and EGSE development.
Plan environmental tests and execute.
Plan particle beam tests and execute.
Calibration particle beam and test equipment development.
Calibration analysis software development.
Ground verification and calibration of LAT.
Ground science verification of LAT.
Phase A commissioning of LAT in orbit -- deliver a working instrument to IOC.

3. Particle Beam Sources Cosmics rays on the ground
All individual towers and the full LAT
Van de Graff (17.6 MeV g)
EM tower + 4 towers of CU + only known energy g into full LAT
SLAC End Station A positrons
Four tower calibration unit
Calibrate energy response
SLAC End Station A photons
Verify MC simulation to measure PSFs and effective areas
SLAC End Station A protons
Verify MC simulation to measure proton rejection
Cosmic rays in airplane (25, ,000 feet)
Full LAT end-to-end test.

4. Science Verification, Analysis and Calibration (SVAC) System
Science Requirement Document
(GLAST-00010)
LAT Performance Specifications
(LAT-SP )
LAT Verification Plan
(LAT-TBD)
Calibration Requirements
(LAT-TBD)
SVAC Plan
(LAT-TBD)
Science Verification
Data Analysis
Calibration

5. Related Integration and Test Activities
Mechanical Systems
Environmental test support.
LAT qualification testing analysis.
Electronics Subsystem
LAT electrical integration.
Performance test planning and execution.
Flight software verification testing.
IOC subsystem
LAT performance test planning.
EGSE, and GSE operations and support during LAT I&T.
Phase B Commissioning of LAT on Orbit -- Calibration.
Science Analysis Software Subsystem
Science Analysis Software support -- event reconstruction.

6. EGSE Division of Responsibility
GLAST Mission
Coordinate with spacecraft vendor EGSE.
LAT
Coordinate EGSE flow across subsystems.
ELECTRONICS
EGSE hardware (except for workstation) & front end software.
I&T
EGSE workstation, workstation software and support. I&T test, analysis, visualization, and script software.
SAS
LAT event reconstruction software.
IOC
Ultimate customer.
Mission
LAT
SAS
I&T
Elect.
IOC
ONLINE

7. Integration Planning Activities
LAT integration planning
Planning for subsystem integration has been included in development of interfaces and LAT design integration
Developing concepts for integration EGSE and GSE.
LAT integration facilities
New clean room facilities have been built and commissioned at SLAC for GLAST
Facilities include I&T infrastructure
Clean room with high bay
Storage for flight hardware
Environmental Tests
LAT thermal tests at SLAC.
Full suite of environmental tests at NRL.
Observatory integration support
I&T team has been involved with mission in investigating options for observatory integration.
LAT and observatory require combined EGSE, GSE and coordinated plans environmental test plans.
Concept of LAT Integration Frame

8. Integration and Test Facility at SLAC

9. Integration and Test Subsystem Work Breakdown
I & T Management
Coordinate I & T planning
Develop LAT I & T plan, to ensure flow of verification test activities
Reliability and Quality Assurance
Collect subsystem verification test results
Manage LAT verification test assurance activities
I & T Preparation - Integration-Facilities-Configuration-Test, Particle Test, Environmental Test, Science Verification Analysis & Calibration.
Prepare LAT I & T facilities
Develop calibration equipment
Develop particle test plan
Develop environmental test plan
Develop Calibration plan

10. Integration and Test Subsystem Work Breakdown - 2
EM1 Model I&T&C- Integration-Facilities-Configuration-Test, Particle Test, Environmental Test, Science Verification Analysis & Calibration.
Coordinate I&T tests with subsystem tests.
Use subsystem calibration data to tune up I&T calibration program.
Run cosmic rays on “assembled” EM1-EM2 unit at SLAC.
Calibration Unit I & T -Integration-Facilities-Configuration-Test, Particle Test, Environmental Test, Science Verification Analysis & Calibration.
Prepare and integrate for Calibration qual and flight modules.
Prepare for and test CU with cosmic rays, Van de Graff, positron, photon, and hadron beams.
Produce LAT calibration products for SAS from CU beam data.
Flight LAT I&T- Integration-Facilities-Configuration-Test, Particle Test, Environmental Test, Science Verification Analysis & Calibration.
Prepare for integration of flight LAT; fabricate and test all mechanical GSE
Mechanically integrate flight LAT
Plan for and execute environmental verification testing
Support planning and execution of Observatory I&T

11. Produce a Working Instrument!
Integration and Test Subsystem Work Breakdown - 3
Mission I&T Support- Integration-Facilities-Configuration-Test, Particle Test, Environmental Test, Science Verification Analysis & Calibration.
Produce a Working Instrument!