GLAST LAT Project
Gamma-ray Large
Area Space
Telescope
DOE/NASA Status Review, March 30 & 31, 2004
GLAST Large Area Telescope:
Integration & Test
Elliott Bloom
SU-SLAC
I&T Manager
elliott@slac.stanford.edu
650-926-2469
Integration and Test
1
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Organization of I&T – Overview
Electrical Ground
Support Equipment
(EGSE) / Online
Software
Mechanical Ground
Support Equipment
(MGSE)
Particle Test
Science Verification
Analysis and
Calibration (SVAC)
Integration Facilities
Configuration and Test (IFCT)
Integration,
Test, and
Calibration
Integration and Test
Management
2
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Integration and Test
Elliott Bloom, Manager (SU-SLAC)
Brian Grist, I&T Engineer (SU-SLAC)
WBS 4.1.9, 4.1.9.1
Integration, Facilities, Configuration, and Test
Larry Wai, Manager (SU-SLAC)
Thomas Borden, IFCT Engineer (SU-SLAC)
WBS 4.1.9.6
Brian Horwitz
Eliazar Ortiz
Electrical Engineer
Mechanical Engineer
TBD 2
TBD 1
Electrical Technician
Electrical Technician Lead
Mechanical
Ground Support
Equipment
Eric Gawehn, Manager
TBD 3
Dave Kiehl
Tom Neiland
Mechanical Technician
Mechanical Technician
Online Software
Particle Test
Ric Claus, Manager (SU-
Gary Godfrey,
SLAC)
WBS 4.1.9.5
Manager (SU-SLAC)
WBS 4.1.9.7
Environmental
Test
Michael
Lovellette, Manager
(NRL)
WBS 4.1.9.8
Bill Olson
Jim Panetta
Mechanical Engineer
Engineering Physicist
Designer
Leo Manger
Mechanical Technician
Lead
Electrical Technician
(SU-SLAC)
WBS 4.1.9.4
Patrick Williams
Mark Molini
Mechanical Technician
Lead
Selim Tuvi
I&T Tracker liaison and test group
Hiro Tajima
Physicist
Reggie Rogers
Mechanical Technician
Johann CohenTannugi
Science
Verification,
Analysis, and
Calibration
Physicist
Mission
Elliott Bloom, Manager (SUSLAC)
WBS 4.1.9.A
Eduardo do Couto e
Silva, Manager (SU-SLAC)
WBS 4.1.9.9
Various Personnel
from NRL
Anders Borgland
Engineering Physicist
Software Developer
Xin Chen
Steve Score
Alicia Kavelaars
Software Developer
Software Engineer
Designer
TBD 4
Warren Focke
Engineering Physicist
Engineering Physicist
Integration and Test
3
16 MAR 2004
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Scope of I&T Presentation
• Preparation for LAT integration
– Integration, Facilities, Configuration and Test (IFCT)
– Electrical Ground Support Equipment (EGSE)/Online
– Mechanical Ground Support Equipment (MGSE)
– Particle Test
– Science Verification, Analysis, and Calibration (SVAC)
– Management
• Peer Reviews of I&T departments 6/14/04 - 6/18/04
• Integration Readiness Review – 7/8/04
• Installation of one tower and testing begins– 8/13/04
• Installation of two towers and testing begins – 9/04
• Two Tower CPT begins – 10/04
• Two Tower CPT complete – 11/04
Integration and Test
4
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Integration and Test Sequence Through Two
Towers (LAT-MD-00676)
Receive Grid
Receive
Calorimeter,
TEM/TEM PS
Flight Units A
Integrate Grid
onto Rotation
Stand
Install in
Metrology Bay
for Shimming &
Assembly
Grid Optical
Survey
Test CAL A &
TEM/TEM PS A
Integrate
Tracker A
into Grid
Integrate
Cal/TEM/TEM
-PS A into
Grid
Integration and Test
Receive
Tracker Flight
Unit A
Receive
Calorimeter,
TEM/TEM PS
Flight Units B
Receive
Tracker Flight
Unit B
Install in
Metrology Bay
for Shimming &
Assembly
Install tower in
Single Bay
Test CAL B &
TEM/TEM PS B
Install tower in
Single Bay
Test Single
Bay Tower
Test Single
Bay Tower
De-Install
Tower from EM
single bay
De-Install
Tower from EM
single bay
Single
Tower
Test in
Grid
Optical
Survey
Integrate
Tracker B
into Grid
Integrate
Cal/TEM/TEM
-PS B into
Grid
Single
Tower
Test in
Grid
Two
Tower
CPT
5
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
I&T Overview to Start of Integration
Requirements
LAT-MD-02730
6/10/04 *
Integration
Procedures
Mechanical and
Electrical
6/18/04
I&T Plan
LAT-MD-01376
5/1/04
Survey Plan
5/1/04 draft
5/31/04 final
EGSE Hwr
Deliveries
6/1/04
MGSE
Development
Plan v.2
5/15/04
Integration and Test
Training & Procedure
Verification
6/18/04
Particle Test
Equipment
6/18/04
Electronics
Test-Bed
5/04
I&T Functional
Test Scripts
6/1/04
LATTE v.3.0
4/1/04
Subsystem
Scripts
5/1/04
Drawings
5/1/04
Electronics
Test-Bed
5/04
Fabrication
6/14/04
Bldg 33 Cert
6/18/04
I&T Mockup
4/1/04
Training & Script
Verification
6/1/04 – 7/1//04
Integration
Readiness
Review
7/8/04
LATTE v.3.n V &V
5/8/04 – 7/8/04
Receive
Flight
Hardware
Start
Integration
Proof Testing
7/21/04
* Final though two tower CPT, releases to support integration procedure development
6
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Recent Accomplishments
• MGSE Review – February 5th and February 24th.
• Held an Integration Kick-off Meeting – March 9th.
• Assembly plan under review for release (Design Engineering
document) – March 12th.
• Hired 6 of 10 open I&T positions as of March 25th.
• Training Mockup ready for use March 31st.
• Initial Online software for integration of LAT, LATTE v.3.0
released – April 1st.
Integration and Test
7
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Integration, Facilities, Configuration, and Test
(IFCT) Flow
Procedure Writing
(March – June)
Mockup
Preparation
(March)
Mockup Training
(April – June)
Facility Preparation
(March – May)
Facility Training
(May – June)
Testbed Preparation
(March – April)
Testbed Training
(May – June)
Integration and Test
Integration
Readiness
Review
7/8/04
8
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Integration, Facilities, Configuration, and Test
(IFCT) - Procedures for Single and Two Towers
• Single bay procedures (12 total)
– 9 procedures partially or fully tested in EM1 test series
– 3 procedures never exercised yet: Tracker installation,
Optical survey, TEM/PSU shimming
– Includes critical operations and facility procedures.
– 7 complete by 4/9/04, 3 complete by 4/19/04, 1 by 5/19/04,
and 1 by 6/18/04.
• Two-bay procedures (6 total)
– Top concern: GASU/PDU test procedures; will be sending
IFCT personnel to ELX test lab to develop and exercise
procedures.
– 3 complete by 4/9/04 and 3 by 6/18/04 including two tower
comprehensive performance test.
• Related MGSE procedures (13 total)
– Use and proof test procedures ready by the IRR.
Integration and Test
9
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
IFCT - Facility Overview / Monitoring system
Subsystem Receiving
Main Integration
Particle Count
Temperature
Humidity
Integration and Test
Example of monitoring
system data:
• Cleanroom typically
operating within limits
99.7% of time
• Hardware bag w/
nitrogen purge covered
remaining 0.3% of time
10
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
IFCT - Facility Project Schedules
• Cleanroom air conditioning hot water back-up boiler - new
issue as of 3/25 (SLAC SEM investigating)
• Network Firewall - ECD 3/31
• Nitrogen purge line certification - ECD 3/31
• Cleanroom Monitoring Automated Data Archival System (SCS)
- ECD 4/30
• Cleanroom air conditioning air intake duct stack - ECD 4/30
• ACD Test Area - ECD 5/31
• ELX Thermal Chamber Installation - ECD 5/31
• ELX T-Vac Installation - ECD 5/31
• Building 33 Back-Up Power Generators - ECD 5/31 (Proposed awaiting quote/Project approval)
Integration and Test
11
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
IFCT – I&T Mock-up
Description of parts:
• Rotation stand supporting
plate spanning full-width of
LAT
• EM single bay can fasten to
central bay
• CAL baseplate external
features
• Shear plates
• Cable trays
• Population of cables,
electronics boxes for bays 815 (50% of LAT)
Status
• All major parts in hand or in
manufacturing
• Ready for training 31-Mar-04
Integration and Test
12
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Planned Operations Meetings
• Ongoing weekly I&T meeting, Thursdays 1:30 PM – 3 PM
(telecon).
• During integration
– Daily 8 AM meeting in Bldg 33 to define work for the day.
• Attended by all technicians on day shift that day.
• Led by electrical and mechanical floor engineers.
– Daily 4 PM meeting in Bldg 33 to review progress of the day
shift and define work for the swing shift.
• Attended by all technicians on day and swing shift that day.
• Led and organized by IFCT department manager.
• Electrical and Mechanical floor engineers define work for the
swing shift.
• Short technical presentation relevant to the days work will be
made.
Integration and Test
13
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Mechanical Ground Support Equipment (MGSE) Flow
Metrology Bay
3/8/04 - 4/19/04
Formal Stress Analysis
2/6/04 – 4/9/04
Personnel Access
Platforms and proof
4/19/04 – 6/14/04
Grid Perimeter Ring
Support Shaft
3/29/04 – 5/14/04
Drive Gear and
Bearings
3/15/04 – 5/7/04
1x4 Lift Fixture and
proof
4/12/04 – 6/10/04
Rotation Stand
Weldment
3/29/04 – 6/15/04
Z-Axis Horizontal Lift
Spreader
3/29/04 – 6/11/04
Rotation Stand
Assembly & Proof Test
6/16/04 – 7/21/04
Grid Perimeter Ring and
brackets
3/29/04 – 5/14/04
4x4 Lift Fixture and
Proof
4/12/04 – 5/27/04
Integration and Test
Proof Test Assemblies
4/5/04 – 6/14/04
Integration
Readiness
Review
7/8/04
14
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Mechanical Ground Support Equipment (MGSE) –
LAT MGSE
Status Tracking
Status (All items
complete
byMatrix
IRR)
LAT I&T MGSE Item
4x4 Integration Stand
4x4 Rotation / Support Stand
Grid Perimeter Ring - Brackets
Support Shaft - Flange Assemblies
Personnel Access Platforms
Z Axis Up Lift Fixture
Z Axis Up Lift Spreader
Z Axis Up Tension Rod Assemblies
Z Axis Horizontal Lift Fixture
Z Axis Horizontal Lift Spreader
Z Axis Horizontal Shackles
Z Axis Horizontal, Crane Scale Mod
Crane Scale Height Modification
4x4 MGSE Proof Test Assemblies
CAL -Z Up Lift Fixture
CAL Alignment Tool
CAL Alignment Rods
CAL Inversion Stand / Interface
E-Box Shimming
Metrology Bay with Stand
Clamps, Align Rods, Lift Eyes, etc
TWR Mass Simulators
EM-2 Single Bay ( TKR Interface Plate)
1x4 Lift Fixture
1x4 Lift Spreader
1x4 Tension Rod Assemblies
TKR - TKR No Touch at Ascent Tool
Integration and Test
Stress Analysis
Status Report
Design - Drafting
Modeled Detailed Released
√
√
√
40%
75%
95%
95%
√
√
√
65%
90%
99%
99%
15%
√
√
95%
95%
√
30%
90%
45%
√
√
√
√
95%
95%
95%
95%
√
√
√
√
95%
95%
95%
95%
√
√
√
√
*
*
*
√
√
90%
√
√
√
90%
√
95%
√
√
√
√
√
80%
√
√
80%
60%
n/a
n/a
√
√
√
n/a
√
√
90%
90%
Procurement
Assembly
Ordered In-House Status Proof Test
9%
50%
50%
30%
√
√
√
√
√
n/a
95%
√
√
100%
√
√
√
√
√
√
√
40%
50%
50%
30%
n/a
n/a
n/a
n/a
n/a
* Hardware in hand and proof test complete
15
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Personnel Access Platform TKR
•
PAP provides ready access to allow crew to Attach or Remove TKR Lift
Fixture from any bay position
• TKR cables will need to be dressed to their –Z end to allow TKR motion
up and over other installed TKRs
PAP at
Highest
Position
Integration and Test
PAP Can
Extend to
Any
Desired
Bay
16
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Electrical Ground Support Equipment (EGSE) /
Online Flow
LATTE v.3.0
with GASU
support
4/1/04
EGSE Hwr
Deliveries
(Electronics)
6/1/04
I&T Functional
Test Scripts
6/1/04
Subsystem Scripts
5/1/04
Electronics
Test-Bed
5/04
Integration and Test
Script / Software
Configuration
Control
7/8/04
Electronic
Logbook / MateDemate Log
6/1/04
Hardware
Monitoring
5/8/04
Power Up
Sequence
5/8/04
Training
6/18/04
Integration
Readiness
Review
7/8/04
Peer Review
6/18/04
LATTE v.3.n
release
5/8/04
Security –
Configuration
Control
5/8/04
LATTE v.3.n V &V
5/8/04 – 7/8/04
Event Prescaling
5/8/04
17
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Electrical Ground Support Equipment (EGSE) /
Online - Test Stand Definitions through two tower
Status:
Stand No.
EGSE Software
Flight Software
PC with VME
crate, LCB and
SBC
X board
Power
Complete Complete 1st Release
TS-1
TS-2a
TS-2b
>=LATTE 2
EM1
X
LATTE 2+
EM1
X
LATTE 3
EM2
X
X
Bench and
EGSE TEMPS
Bench
EM or flight PDU
Spacecraft
Interface
Simulator (SIS)
Test phase description
Tracker or Cal receiving test
TKR installation in EM single bay
ACD receiving test
Cal/TEM/TEMPS integration
Tower integration in EM Single Bay and in grid
2+ towers in grid through GASU and PDU
installation, can be used up to launch for low
level tests including ACD
Tests EPU and SIU after installation, including
before all 16 towers are integrated
Full up LAT testing
Integration and Test
X
X
X
X
X
18
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Single Tower EGSE Configuration (TS-1 / 2a)
Online
Workstation
Subsystem
(or simulator)
CPU
• Commanding
• Telemetry
• Monitoring
AEM/TEM
• Hardware Drivers
LAT-COMM
DC Power
•External Trigger
• Test Exec
• Configuration
• Commanding
• Telemetry
• Event Processing
• Monitoring
• Visualization
• Data base
• Message logger
• Alerts
• Electronic log
Main Dataflow
Ethernet
Central
Database
WAN
Back door
debug RS-232
Ethernet
Ethernet Router
and Firewall
VME Chassis
External Hardware
Subsystem/simulator
Integration and Test
Electronics/Online
19
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Multi-Tower EGSE (TS-2b)
EGSE Crate
ACD
or
Sensor
Simulator
CPU
28 V
Supply
WAN
LCB
GASU
VME
AEM
EBM
TEMs
28 V Supply
PDU
Firewall
GEM
Central
Database
Online
Workstation
CAL, TKR
or
Sensor
Simulator
T&DF System (LAT)
Integration and Test
SLAC
EGSE
20
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Particle Test
Van de Graaff
Cosmic Ray Scintillator
BGO Monitor
Status: Needs data
acquisition system upgrade
6/18/04
Status:
•1 kHz g into 4p sr during EM test
•> 100 kHz g into 4p sr with
upgraded VdG in work
•Electron veto upgrade in work
•Complete by 6/18/04
Procedures for equipment setup
complete by
6/18/04
Spare Parts for 22 components (8
already have, 14 ordered by
4/15/04)
Integration and Test
Status: Needs
upgraded support
6/18/04
•Bi-weekly verification of VdG by
recording BGO spectrum
•Bi-weekly verification of Scintillator
telescope by recoding cosmic rate
Integration Readiness Review
7/8/04
21
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Science Verification, Analysis, and Calibration
(SVAC)
•
•
•
Calibrations
– To verify that offline/online calibrations
agree
– To improve calibrations by using
additional LAT information not available
to subsystems
– To develop trend analyses to provide
history of calibrations
Data analyses
– To apply SAS reconstruction algorithms
on real data
– To uncover and quantify any
instrumental effects that could have an
impact on science data analysis
SVAC depends strongly on work outside
SVAC
– Subsystem inputs
– SAS Calibration infrastructure
– SAS Pipeline Infrastructure
– SAS/Online Event Format definitions
Integration and Test
Data
Files
Calibrations
Data
Analyses
Databases
Trending
Analyses
Infrastructure
22
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Science Verification, Analysis, and Calibration
(SVAC) - Roadmap
SAS Calibration Algorithms
(May)
SAS Database
(May)
SVAC Acceptance and Test of SAS Algorithms
(May - July)
SVAC Database and Calibration trending
(March - July)
SVAC Data Pipeline
(May-June)
SAS Pipeline
Infrastructure
(March - April)
SAS Geometry
Review
(April)
1 & 2 Tower
Geometry
(April – May)
MC Datasets
1 & 2 tower
(May)
Integration
Readiness
Review
7/8/04
Instrument Test Analysis
(March – July)
EM 1 data analysis
(March - May)
SVAC Workshop
(May)
EM 2 data analysis
(April - June)
Integration and Test
23
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Variances Schedule and Cost
• Schedule
– Budgeted Cost of Work Scheduled (BCWS): 3125 k$
– Budgeted Cost of Work Performed (BCWP): 3111 k$
– Schedule Variance: -14 k$ or 0.5%
• Cost
– Budgeted Cost of Work Performed (BCWP): 3111 k$
– Actual Cost of Work Performed (ACWP): 3037 k$
– Cost Variance: +74 k$ or 2.4%
• The Integration and Test Subsystem schedule and costs are
under control.
Integration and Test
24
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Critical Path to Integration of First Flight
Module
Tower Integration
EGSE Dev & Support
5/18/04 (0)
Receive / Inspect
Cal Module A
8/13/04 (-24)
EGSE Validation for
Tower Integration
5/19/04 (0)
Integrate Flight
TKR/Cal Towers A
8/27/04 (-11)
EGSE Ready for
Integration
5/20/04 (0)
Functional Tower Test - A
9/13/04 (-11)
Completion Date (Baseline Variance)
Issues driving critical path
•
Test requirements
– Working closely with Systems in weekly meetings to drive to closure
• LAT Performance and Operations Test Plan LAT-MD-02730 6/10/04
– Rapid progress possible on I&T Test plan
• Integration and Test PlanLAT-MD-01376 5/1/04
– Working with Design Integration and Tracker in weekly meeting to drive to closure
• Survey Plan, 5/1/04 draft, 5/31/04 final
•
Subsystem scripts
– I&T EGSE/Online working closely with subsystems to enable delivery by 5/1/04
•
Time on Electronics Test-Bed for EGSE V&V and technician training
– Electronics will give I&T required access to needed equipment starting on 5/1/04
Integration and Test
25
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Approved Cost Changes Since Rebaseline
(k$)
4.1.9 Baseline, November 03
$6,384
Changes:
• Additional I&T Manpower
• IFCT Engineering/Design
• Tracker/Grid Interface Redesign
• Stanford Benefits Rate Increase
Total Change
$
$
$
$
$
4.1.9 Baseline, February 04
$7,373
523*
284
35
147
989
*Corresponding NASA funding increase, change was pending
during rebaseline effort.
Integration and Test
26
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Where will I&T be in 6 months?
•
•
•
•
The Integration Readiness Review (IRR) will have been completed.
– The procedures for integration have will been completed.
– The MGSE for LAT integration will have been built and tested.
– The EGSE/Online for integration will have been completed and
tested in place.
– Configuration control in place.
– Technicians will have been trained.
– Facility will be certified.
– Van de Graaff will be ready.
The Grid will have been received and installed on the rotation stand.
The first tower will have been received, installed and tested.
The second tower will have been received and work will have begun on
installation and testing.
Integration and Test
27
GLAST LAT Project
DOE/NASA Status Review, March 30 & 31, 2004
Summary
• I&T is on track to begin integration as currently scheduled.
Integration and Test
28