Electrical Ground Support Equipment Schedule and Cost

GLAST LAT Project EGSE Peer Design Review, August 17, 2001

1S. Williams EGSE Schedule and Cost

Electrical Ground Support Equipment Electrical Ground Support Equipment Schedule and CostSchedule and Cost

Scott Williams

Stanford University

[email protected]



ScheduleSchedule

• The schedule is driven by the delivery of electronics hardware units.– EM1– EM2– FSW Testbed– Qualification Unit– Flight Unit

• Each provides increasing complexity and capability.• Other major duties are

– Support for FSW development– Support for T&DF development– Support for I&T activities



Evolutionary EGSE DevelopmentEvolutionary EGSE Development

IOC/SAS Interface LAT GSE Interfaces GLAST GSE Interfaces GLAST Flight Interfaces

LAT Large Area Telescope GSE Ground Support Equipment EGSE Electrical GSE EM1 Engineering Model 1 EM2 Engineering Model 2 FU Flight Unit QU Qualification/Calibration Unit AEM ACD Electronics Module EP Event Processor FSW Flight Software GTM Global Trigger Module IOC Instrument Operations Center LOF Operations Facility MOC Mission Operations Center S/C Spacecraft SAS Science Analysis Software SSC Science Support Center SDP Science Data Production SIU Spacecraft Interface Unit T&DF Trigger and Dataflow System TEM Tower Electronics Module

LAT

S/C GSE

LAT FU

EGSE

SSCMOC

Mission Systems Integration & Test

LOF SDP

IOC

S/C

SAS

LAT

LAT Integration & Test

LOF SDP

IOC SASLAT FU

EGSE

LAT FSW

Testbed

LAT Flight Software Testbed

LOF SDP

IOC SASLAT EM2 EGSE

LAT Sims ACD TKR CAL

Subsystem DevelopmentEGSE EM1TKR

EGSE EM1ACD

EGSE EM1CAL

SDP

LOF

LAT Sims ACD TKR CAL

T&DF DevelopmentT&DF

EP GTM SIU

AEM TEM

LOF SDP

IOC SAS

LAT EM2 EGSE



T&DF Integration & Test, I&TT&DF Integration & Test, I&T

T & D F Integration & Test Plan

Des ign & Engineering P roto-F light Qual P roduc tion

B eam Test

LAT In teg ration

Delivery

T/VE lect Func/P erf Tests

E M I/E lectP erf Tests

V ibe/E lectF unc Tests

D AQ -PS

S IU -EM

S IU -PS

A C D -E M

D AQ -EM

E P-E M

P D U

G T-E M

A C D -P S

G T/E P-PS

P atch Box

E M I/E lect P erfTests

Test Bed

V ibe/E lectF unc Tests

T/VE lect Func/P erf Tests

E M I/E lectP erf Tests

D AQ -PS

S IU -EM

S IU -PS

A C D -E M

D AQ -EM

E P-E M

P D U

G T-E M

A C D -P S

G T/E P-PS

P atch Box

Softw are

A dditional f light bu ilds w ill be availab le as dev elopm ent on test bed continues

Ÿ Test

Ÿ Flight Build 0

Ÿ Flight Build 1Ÿ Flight Build 0 Ÿ Flight Build 0

Hardw are

Ÿ Engineering Models Ÿ Proto-FlightQualification Units

Ÿ Flight Units Ÿ Flight UnitsŸ Proto-Flight Units

becom e flight sparesafter beam test



LAT I&T PlanLAT I&T Plan

Des ign & Engineering T ow er Integration LA T Integration EnvironmentalCharac terization

& CalibrationsDelivery

TK R

Integ rate TK R /C A Lw ith G rid & E M 's

A coustic

C haracterization

C alib ration

C onfiguration

C AL

A C D

GSE Sets

Softw are

Hardw are

Ÿ Engineering Models

Ÿ Vib- Random & Sine Sw eep

Ÿ Therm al Cycle @ 1AmŸ Therm al Vac

Ÿ Proto Flight Qual

Ÿ Qual

Ÿ FlightTKR/CAL/TEM /Grid

Ÿ Flight

Ÿ Flight SparesŸ Test Harness

Ÿ Flight HarnessŸ SIU Sim ulator

Ÿ Flight SIU

Ø TestØ TestØ Flt Build 0

Ÿ Functional

Ø Flt Build 2

Ÿ Liveness Tests

G rid

R adiator

E vent P roc.

Ÿ EMI

Ÿ Acoustic

S IU

A C D -E M

Beam Test

D AQ -EM

G lobal Trig .

Ÿ ACD Sim ulator

Therm alV ac

V ib ration

E M I/EM C

F lt H arness

S ub SystemInterconnect

Ÿ Aliveness TestsŸ Abbr. Functional

Ÿ Pre Environm ental Ÿ Reference Com prehensivePerform ance

Ÿ Alignm ents

Ÿ Functional

Ø TestØ Flt Build 1 Ø Flt Build 3

Ÿ Flight LAT Ÿ Flight LAT

Ÿ Com prehensivePerform ance (Final )

Ÿ Liveness Tests

Ÿ Functional

Ÿ Engineering

Ÿ Operations

Ÿ Aliveness TestsT esting

S ubsystem &com ponen t

Q ua lifica tion

Calorim eter (2)ACD (1)TKR (3)

DAQ (2)

DAQ (1)TKR (1)ACD (1) Calorim eter (1) LAT (1) LAT (1) LAT (1)

Ÿ Flight LAT

LAT (1)

Ø Flt Build 3Ø Engineering

q IOC (v1)

q IOC (v2)

IOC (v0)

Ÿ ACD-EMŸ GT-EMŸ Event-EM

q IOC (v3)A dtl. F lt B uilds

A dtl. IO C Builds

LAT Integration & Test Plan

Calibration & Characterization

Ÿ Characterization &Calibration

Ÿ Characterization &Calibration Ÿ Characterization &

Calibration

Ÿ Characterization (Final)

Ÿ Calibration (Ship)Ÿ Characterization & Calibration

Test Bed Test Bed Test Bed Test Bed Test Bed Test Bed

11/20038/2002 1/2004 7/2004 4/2005 3/2006

8/2003

E

MCart

Grid Mounting StandVibration Test M ount StructureT/V Test Mount StructureHot / Cold PlatesTherm al Blanket

Grid Support Integration SupportCartCooling PlatesCalibration detector

Lifting Rigging

Hot / Cold PlatesCalibration DetectorCalibration Detector Stand

Misc. Transport Figures



EGSE Development & TestEGSE Development & Test

ActivityProduct

Legend

EM2 Interface Tests

Subsystem EGSE

EM2 EGSE Development

EM2 EGSE

Subsystem Hardware Simulators

EM1 EGSE Development

EM1 EGSE EM1 Interface Tests

A

B

Qual Unit Calibration & Test

FSW Development Support

FSW Testbed EGSE

LAT I&T - Func, TV, Calibration

Observatory Environmental Testing

Ground Sys Compatability Tests

LAT Testbed

V&V CMD, FSW, Param Uploads

Qual Unit EGSE

LAT and GSE Delivery

AFlight Unit EGSE

B



EGSE DeliverablesEGSE Deliverables

Function Version Number Need DateTEM Development EM1 2 Nov-01Subsystem I&T EM1 6 Mar-02LAT I&T EM1 2 Apr-03T&DF Development EM2 1 Sep-02FSW Tesbed EM2 1 Dec-02Qual/Cal Unit QU 1 Apr-03Flight Unit FU 1 Aug-03

Total Systems– Engineering Model 1 - 10– Engineering Model 2/Qual Unit/Flight Unit - 4



MilestonesMilestones

• EGSE PDR (Concept Review) 08/17/01• LAT Instrument PDR 10/24/01• DAQ Engineering Model 1 Development - EM1 EGSE Delivery 11/01• Subsystem Development - EM1 EGSE deliveries 03/02• LAT Instrument CDR 08/05/02• DAQ Engineering Model 2 Development - EM2 EGSE delivery 09/02• Flight Software Testbed Development - FSTB EGSE Delivery 12/02• Qualification Unit EGSE Delivery 05/03• Flight Unit EGSE Delivery 8/03• Transition to IOC Maintenance 10/03• Calibration Unit Beam Test 10/03• LAT Environmental Testing 05/04• MSI&T Support 03/05



EGSE ScheduleEGSE Schedule












Labor LoadingLabor Loading

HEPL Staffing for IOC/EGSE includes hiring profile of 1 FTE staff in FY02, FY03 and FY04 until stabilizing at 5 FTEs in FY04.

Total EGSE staffing is approximately 2 FTEs in FY02/03

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

FT

E

FY00 FY01 FY02 FY03 FY04 FY05 FY06

FIscal Year

EGSE/IOC Staffing

Students

IOC Staff

EGSE/SLAC

EGSE/NRL

EGSE/HEPL



Level 4 Budget by FYLevel 4 Budget by FY

EGSE labor estimate is low and does not include configuring multiple systems



Issues & MitigationsIssues & Mitigations

• Multiplicity of systems required to support parallel development efforts– Enforce commonality of basic infrastructure.– Provide data distribution over ethernet to support subsystem

specific EGSE and engineering data displays.– Use COTS hardware and software as much as possible to control

cost. KISS.– Leverage RTOS interface systems development off flight software

development.– Leverage out-years EGSE maintenance from IOC.

• Initial need date of 11/01 is aggressive– Begin development immediately.– Leverage recent Balloon Flight EGSE development.– Obtain subsystem buy-in via IPT.

• Trade studies delayed by Balloon Flight– Perform in parallel to EM1 development

Documents

Electrical Ground Support Equipment Schedule and Cost