GLAST Large Area Telescope: I & T Input to Monthly Technical/Cost/Schedule Review 05/24/05

GLAST LAT Project Technical/Cost/Schedule Review 05/24/05

4.1.9 - Integration and Test 1

GLAST Large Area Telescope: GLAST Large Area Telescope: I & T Input to Monthly

Technical/Cost/Schedule Review05/24/05

Elliott BloomSU-SLAC

Subsystem Manager

Ken FoutsSU-SLAC

Subsystem Engineering Manager

[email protected], [email protected] 650-926-2553

Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope



Last Month's Accomplishments (1 of 3)Last Month's Accomplishments (1 of 3)

• Management– Supported Observatory I&T Planning Meeting at GD.– Procedure Status

– 65 of 68 I&T documents in review/approval cycle.

– Tracking hardware shortages for LAT integration.• Current shortages:

– GRID HTR PWR HARNESS ASSY, LAT-DS-05057– GRID HTR TEMP SENSOR HARNESS ASSY, LAT-DS-03662

• IFCT – Validated EGSE in the grid with EM TEM’s prior to connection to

flight HW. – Completed Two-Tower Test– Completed I&T Receiving Tests on TKR 1, 2 and 3.– Completed Bay 5 Tower (TKR/TEM/CAL) installation– Completed Bay 1 TKR Installation– Installed and crimped Grid thermisters and thermocouples.



• Online

– E-logbook– Added ability to search shift logbook with Google Desktop– Implementing requested improvements

– Beyond 2 towers– Housekeeping multi-pen strip chart GUI– Parallelizing INT scripts– Attempting to move some LATTE 5 features into production (e.g.,

HSK, LATc)

– Continued supported of CAL, TKR, TRG, INT and test suites.

– Supported data taking, trigger and E2E script development.

– Problem assessment and fixes are a large part of online workload– NCRs, support for clean room operations, support of subsystems

scripts.

– CCB activity and JIRA maintenance




• SVAC– Successful turn around for calibration of two tower data

– ready before data taking started

– Joint effort TKR/CAL/SAS/SVAC

– Offline data processing system under CCB and working well

– Single tower data analysis– No show stoppers yet

– Generated several special test requests

– Good start with two tower data– Data is being analyzed in details

– No major problem identified so far




Power Outage Impact on I&TPower Outage Impact on I&T

• Emergency Generator allowed work to continue in B33• TKR 3 was installed on Thursday• Room 103 circuit breaker/panel fault was resolved by turning off non-essential

power.• The current plan to resolve the B33 Room 103 power issue is as follows:

– SEM will procure several 150A breakers to replace the current main breaker in the power box as time (and testing) permits.

– Several temporary power drops will be added to the office area on a separate circuit so that computers can be powered up and desk lamps can be used in the desk and board area outside of the clean room.

– SEM will verify the power panel arc flash calculations, write and execute the procedures to open the panel for inspection and load measurements in the current state (only 6 out of 42 breakers on).

– At the completion of TVAC on Wednesday, SEM would begin work to replace the main breaker and determine the panel loads in more detail as the remaining breakers are turned back on.

• 4 hour shutdown is planned for Wednesday.• Our goal is to safely bring the building back to 100% with minimal impact to

building users.



I&T MGSE/Grid ActivitiesI&T MGSE/Grid Activities

Tower A & B in the Grid Mass simulators installed EM PDU and GASU

EGSE shelf and cable service loop

EGSE harness routing Harness service loop



I&T NCRs by Month Open/Closed StatusI&T NCRs by Month Open/Closed Status

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Open/Closed Status

Month NCR Opened

Current Status

As of May 23rd

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Count of Open/Closed Status

Date by Month

Previous Month



Procedure StatusProcedure Status• 68 documents total• 65 latest versions submitted for sign-off• 59 are released

18 18 18 18 17 17 17 17 17 17 16 17 16

15 15 15 15 15 15 15 15 15 1514 14 14

7 7 7 6 6 5 5 5 4 44 4 4

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Procedure Status (1 of 6) – ManagementProcedure Status (1 of 6) – Management



Procedure Status (4 of 6) – IFCT ElectricalProcedure Status (4 of 6) – IFCT Electrical



Upcoming I&T EventsUpcoming I&T Events

– Two tower test (Complete)– Receiving tests for TKR 2 (Complete 5/13)– Receiving tests for TKR 1 (Complete 5/11)– Receiving tests for TKR 3 (Complete 5/16)– Receive TEM/TPS 1 and 2 ECD 5/9 (Complete 5/19)– TKR 2 in Bay 5 (Complete 5/17)– TKR 1 in Bay 1 (Complete 5/19)– CAL/TEM Installation in Bay 5 ECD 5/24– CAL/TEM Installation in Bay 1 ECD 5/25– 4 Tower Tests ECD 6/7– Receive TEM/TPS 3 and 4 ECD 5/16 5/26– Receive TKR 4 ECD 6/9



I&T Detail Schedule (1 of 4)I&T Detail Schedule (1 of 4)

ID Task Name Start % Complete Finish

664 Tower 2 - Bay 5 12/6/04 90% 5/25/05665 FM103 Post ship test and receiving test 12/6/04 100% 1/14/05673 Tracker 2 post ship test & receiving test 4/4/05 100% 5/13/05686 TEM/TPS 1 Flight Readiness w/rework 5/19/05 100% 5/19/05687 STM Bay 5 TEM/TPS 5/19/05 100% 5/19/05688 Bays 4&5 TEM-GASU Flight cables ready 5/16/05 100% 5/16/05689 Bays 4&5 TPS-PDU flight cables ready 5/11/05 100% 5/11/05690 Receive purge groove cables 4/25/05 100% 4/25/05691 Pull test Purge Groove (Thermistor) cables

(non-flight)5/6/05 100% 5/12/05

692 install purge groove cables 5/13/05 100% 5/16/05693 LAT integration stand electrical control upgrade 5/13/05 0% 5/13/05694 TEM/TPS-1 I&T 5/19/05 93% 5/23/05701 Tower 2 Grid Bay 5 I&T 4/27/05 40% 5/25/05702 Finish NCR 420 disposition 4/27/05 100% 4/27/05703 Release updated TKR Integration Procedure 5/16/05 100% 5/16/05704 Updated CAL integration procedure w/ flight

DAQ cable5/23/05 0% 5/23/05

705 TKR-2 installation into grid bay 5/17/05 100% 5/18/05

5/19

5/16

5/11

4/27

2/27 3/20 4/10 5/1 5/22 6/12 7/3 7/24Feb '05 Mar '05 Apr '05 May '05 Jun '05 Jul '05





709 FM102 installation into grid bay 5/23/05 0% 5/24/05714 Tower-2 Grid Bay 5 Test 5/24/05 0% 5/25/05715 Bay 5 post-integration Aliveness Test 5/24/05 0% 5/24/05716 Bay 5 post-integration Single Bay CPT 5/24/05 0% 5/24/05717 Bay 5 Post installation test review 5/25/05 0% 5/25/05718 Bay 1 I&T (Tower 3) 12/6/04 44% 6/8/05719 FM103 Post ship test and receiving test 12/6/04 100% 1/14/05727 Tracker 1 post ship test & receiving test 4/27/05 100% 5/10/05735 Sell TKR-1 to I&T 5/10/05 100% 5/10/05736 I&T TKR-1 Receiving Test (LAT-PS-3290) 5/11/05 100% 5/11/05737 TEM/TPS 2 Flight Readiness 5/20/05 100% 5/20/05738 STM Bay 1 TEM/TPS 5/20/05 100% 5/20/05739 TEM/TPS-2 I&T 5/23/05 0% 5/25/05747 Tower-3 Grid Bay 1 I&T 5/9/05 26% 6/8/05748 FM1 installation into grid bay 5/19/05 100% 5/20/05752 FM103 installation into grid bay 5/23/05 0% 5/25/05758 Grid Bay 1 (Tower-3) Test 5/23/05 0% 5/27/05

5/20






766 Four Tower Test 5/9/05 28% 6/8/05767 Flight DAQ cable fit checks 5/16/05 100% 5/18/05768 Cable installation review for 4 tower test 5/19/05 100% 5/19/05769 CR for 4 tower test 5/19/05 100% 5/19/05770 EM GASU EICIT/SVT 5/17/05 100% 5/18/05771 EM PDU EICIT/SVT 5/17/05 50% 5/23/05772 Write multi-tower test scripts 5/9/05 0% 5/13/05773 validate multi-tower test scripts 5/16/05 0% 5/20/05774 INT Tag release 5/23/05 0% 5/23/05775 Four Tower Test Pre-test review 5/24/05 0% 5/24/05776 Execute four tower test 5/31/05 0% 6/8/05777 Bays 1/5 CPT sub-series 5/31/05 0% 6/1/05778 Bays 1/5 trigger test sub series 6/1/05 0% 6/2/05779 Bays 1/5 calibration sub series 6/2/05 0% 6/6/05780 Bays 0/4/1/5 SVAC sub-series 6/6/05 0% 6/7/05781 4 Tower Test post review 6/8/05 0% 6/8/05






782 Tower 4 - Bay 9 2/22/05 58% 6/17/05783 FM106 Post ship test and receiving test 2/22/05 100% 2/28/05790 Tracker 3 post ship test & receiving test 5/2/05 95% 5/17/05800 TEM/TPS 3 Flight Readiness 5/19/05 0% 5/19/05801 TEM/TPS-3 I&T 6/9/05 0% 6/13/05807 Tower-4 Grid Bay 9 I&T 6/8/05 0% 6/17/05808 TKR-3 installation into grid bay 6/8/05 0% 6/15/05813 FM106 installation into grid bay 6/15/05 0% 6/16/05816 Tower-3 Grid Bay Test 6/16/05 0% 6/17/05819 Tower 5 - Bay 8 2/22/05 8% 6/30/05820 FM107 Post ship test and receiving test 2/22/05 100% 2/28/05827 Tracker 4 post ship test & receiving test 6/7/05 0% 6/14/05835 TEM/TPS 4 Flight Readiness 5/19/05 0% 5/19/05836 TEM/TPS-4 I&T 6/8/05 0% 6/9/05842 Tower 5 Grid Bay 8 I&T 6/14/05 0% 6/30/05843 TKR-4 installation into grid bay 8 6/14/05 0% 6/21/05848 FM107 installation into grid bay 8 6/21/05 0% 6/22/05851 Tower-5 Grid Bay 8 Test 6/22/05 0% 6/30/05

5/19

5/19




I&T 6 Month Look Ahead (1 of 2)I&T 6 Month Look Ahead (1 of 2)ID Task Name Duration Start Finish

1 LAT Accelerated Integration Plan 427.88 days? 3/19/04 1/9/06

2 Grid RFI 0 days 10/22/04 10/22/04

3 X-LAT Thermal Plate RFI 0 days 2/9/05 2/9/05

4 Radiators RFI 0 days 5/31/05 5/31/05

5 Tracker Receiving 171 days 1/14/05 10/1/05

6 Tower A 7 days 1/14/05 1/26/05

11 Tower B 8 days 2/14/05 2/24/05

17 Tower 1 3 days 5/10/05 5/13/05

21 Tower 2 6 days 5/10/05 5/18/05

25 Tower 3 8 days 5/10/05 5/20/05

29 Tower 4 2 days 6/9/05 6/13/05

33 Tower 5 3.06 days 6/10/05 6/15/05

37 Tower 6 2 days 7/8/05 7/12/05

41 Tower 7 2 days 7/14/05 7/18/05

45 Tower 8 2 days 8/15/05 8/17/05

49 Tower 9 2.13 days 8/17/05 8/19/05

53 Tower 10 2 days 9/2/05 9/7/05

57 Tower 11 3.06 days 9/6/05 9/9/05

61 Tower 12 2 days 9/12/05 9/14/05

65 Tower 13 2 days 9/26/05 9/28/05

69 Tower 14 2.13 days 9/28/05 9/30/05

73 Tower 15 21.88 days 8/30/05 10/1/05

79 Tower 16 1.5 days 8/30/05 8/31/05

85 Calorimeter Receiving 138 days 12/1/04 6/29/05

176 Electronics Receiving 358.78 days 3/19/04 9/16/05

177 Cables 81.63 days 2/10/05 6/14/05

196 TEM Assemblies 86.75 days 2/18/05 6/29/05

215 TEM PS Assemblies 86.75 days 2/18/05 6/29/05

234 Electronic Boxes 358.78 days 3/19/04 9/16/05

235 Flight Harness - Remaining Cables 122.47 days 2/10/05 8/15/05

236 EM PDU 0 days 4/26/04 4/26/04

237 EM GASU 0 days 3/19/04 3/19/04

238 Flight PDU 0 days 8/23/05 8/23/05

239 Flight SIU 8.03 days 9/6/05 9/16/05

240 Flight GASU 0 days 9/8/05 9/8/05

241 Flight Event Processor Units 8.03 days 9/6/05 9/16/05

10/22

2/9

5/31

0%

8/23

0%

9/8

0%

20 27 3 10 17 24 1 8 15 22 29 5 12 19 26 3 10 17 24 31 7 14 21 28 4 11 18 25 2Mar '05 Apr '05 May '05 Jun '05 Jul '05 Aug '05 Sep '05 Oct '05



I&T 6 Month Look Ahead (2 of 2)I&T 6 Month Look Ahead (2 of 2)

ID Task Name Duration Start Finish

242 ACD Receiving 0 days 7/15/05 7/15/05

244 Grid Assemby in I&T 76.19 days 11/1/04 2/25/05

275 TEM to Calorimeter 98.25 days 2/7/05 7/5/05

330 Calorimeter/Tracker/TEM/TEM-PS Test 147.94 days 2/21/05 10/1/05

379 Tower Installation 131.44 days 3/21/05 10/5/05

380 Install Tower 0 10 days 3/21/05 4/5/05


396 2 Tow er CPT 11 days 4/22/05 5/10/05

397 Install Tower 2 2.5 days 5/20/05 5/25/05


411 4 Tow er CPT 8 days 5/26/05 6/8/05





440 FSW Delivery w / EM SIU 0 days 7/15/05 7/15/05

441 8 Tow er CPT 5 days 7/15/05 7/25/05









497 Install Electronics and Cables 12.19 days? 9/21/05 10/7/05

498 Install SIU 1.5 days 9/21/05 9/22/05

499 Install GASU 1.5 days 9/21/05 9/22/05

500 Install PDU 1.5 days 9/22/05 9/26/05

501 Install Event Processors 1.5 days 10/5/05 10/7/05

502 FSW Install and Checkout 1 day? 9/22/05 9/23/05

503 LATTE 5 Validation 5 days 10/1/05 10/7/05

504 16 Tow er CPT 3 days 10/7/05 10/12/05

505 ACD Install and Test 4 days 10/12/05 10/18/05

508 LAT Level System Test 45 days 10/18/05 1/4/06

514 Pack & Ship to NRL 3 days 1/4/06 1/9/06

7/15

0%

0%

7/15

0%

0%

0%

0%

0%

0%

0%

0%

0%

20 27 3 10 17 24 1 8 15 22 29 5 12 19 26 3 10 17 24 31 7 14 21 28 4 11 18 25 2Mar '05 Apr '05 May '05 Jun '05 Jul '05 Aug '05 Sep '05 Oct '05



Issues & ConcernsIssues & Concerns

ISSUES• Availability of flight assembly hardware.

– Shortages identified by I&T and being worked with Subsystems.

• Flight Cables

CONCERNS• Continued support for NCR closure.• Resolution of Room 103 power issue.• TPS rework and replacement, availability for future tower

installations.• Delivery dates for third layer ELX boxes and TKR. • LATTE 5.0 ready Oct. 1 for use in LAT Functional testing due to

start 10/14. E2E tests start 11/1.



“ “Issues” for single tower tests: offline analysisIssues” for single tower tests: offline analysis

• CAL_HI and CAL_LO fired without any crystal hits– Most likely due to direct deposition in diodes

• CAL_HI trigger fired without high energy deposition– Most likely due to direct deposition in diodes

• Discrepancy between TKR occupancy on top GTRC’s between DATA and MC in electronics space (generated STRXX)– Most likely due to the differences in particle composition between DATA and MC– Maybe a small fraction could be from CC FIFO buffers filled up in data (this is a feature not a bug)

• Discrepancy between Data and MC for TKR dead channel list – Partially disconnected channels are not simulated

• Discrepancy calculated and measured event size (generated STR3)– Miscalculations based on wrong assumptions for event multiplicities

• Discrepancy between GEM and TriggerAlg for trigger types– Analysis software (TriggeAlg) is not a realistic representation of GEM since it does not address threshold/calibration

differences• Discrepancy in trigger rates for 1,5,10 and 20 KHz runs, underestimated for low rates and overestimated for high rates at a few

% level– Rates from generator were not known to better than a few %, so it is consistent with measurements– overestimation had to do with deadtime since some events did not make into the stream

• Compared events that triggered BOTH the TKR and EXT pulse generator running at 20KHz with events that trigger TKR only, former had lower hit multiplicity (generated STR8)

– Reason was that when a trigger window was opened (on raising edge) by EXT the TKR signal was already on for some time which means some of the hits already died away by the time we looked at. Expect this to be more frequent a higher rates

• Distribution for TKR trigger arrival times was not flat– Needed to select EXT trigger to open the window and then make the same plot and naturally the spike disappears

• There is consistently 10-15% more triggers seen during the 5 and 10kHz runs than expected as measured by the exponential fit to the delta event time register of the GEM.

• TKR only triggers is around 85% (TBR) of the time when the muon telescope triggers

Under investigation

Investigation has not started

Closed



The Oscar goes to…The Oscar goes to…



Two Tower Tests Baseline Run : Flight ConfigurationTwo Tower Tests Baseline Run : Flight Configuration

There are 234664 triggersThere are 0 events with Trigger Parity errors There are 0 events with Packet errors There are 20 events with TEM errors Time of first trigger: Thu May 5 20:48:41 2005 (GMT) Time of last trigger: Thu May 5 21:48:42 2005 (GMT) Duration: 3601 seconds Rate: 82 hz

Reconstructedpositions

79% single track events14% two-track events

Calibrated Energy SpectrumExpected to peak at 100 MeV



Time Between Events: Baseline RunTime Between Events: Baseline Run

As expected 26.5 us !



Two Tower Tests Baseline Run : Reconstructed Z DirectionTwo Tower Tests Baseline Run : Reconstructed Z Direction

Tracks passing through 1 tower only

Tracks passing through both towers

Tracks coming from top of the towerCos = -1

Maximum trigger acceptance is reduced and is consistent with expectations based on

geometrical calculations

Selection cuts:

•Single track events•Ratio between predicted and measured MIP > 0.7 and < 1.3

From Anders…



Two Tower Tests Baseline Run : Sum of Crystal Energies in the CALTwo Tower Tests Baseline Run : Sum of Crystal Energies in the CAL

Tracks passing through 1 tower only

Tracks passing through both towers

Energy calibrations work within a tower and across towers

Energy in MeV

Energy in MeV

Selection cuts:

•Single track events•Ratio between predicted and measured MIP > 0.7 and < 1.3



Two Tower Tests Baseline Run : Two Tower Tests Baseline Run : MCMC vs vs DATADATA

Tower 0 Tower 4From Dave…



Science Data vs. Science Data vs. Housekeeping DataHousekeeping Data

Tower 0, bottom layer Tower 0, top layer

Tower 4, bottom layer Tower 4, top layer

Time

Time

Time

Time

Tem

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From Xin…



Priorities for Data Analysis for 2 towersPriorities for Data Analysis for 2 towers

• We proposed to the Collaboration to analyze these runs first – We are identifying names to be attached to the list below

– 1/1 – baseline– Check trigger types and rates, event sizes , raw and recon distributions for tracks within

one tower and across towers – Monte Carlo comparison

– 2/1,2/2 – baseline and change PDU PS values– First time we have a Power Distribution Unit. Could it be a source of noise? If so, can the

raw distributions tells us?– 2/6, 2/7 – read TKR from Left or Right only

– Cable lengths are different between odd and even numbered towers, but the DAQ takes that into account. Let’s check it by comparing raw and recon distributions from both towers. Select events that triggered at the center and at the edges

– 4/1 to 4/4 – baseline with pulse generator @ 1,5,10,20 kHz – Muon distributions should not be affected by high rates from pulse generator– Do we understand the deadtime?

– B2 – nominal settings TEM diagnostics enabled– It is just like 1/1 but with TEM diagnostics ON

– B10 – CAL HE muon gain, 4 range readout, TEM diagnostics enabled– Calibrate TOT– measure dead strips– Calibrate edges of crystals

– B13 – CAL HE muon gain, 4 range readout, Zero Suppression disabled– Check pedestals in the CAL– Trend pedestals, muon peaks, log ratios, what else?



Wrapping up…Wrapping up…

• Good start with two tower data– Runs finished this morning– Will distribute data to Collaboration today

• More to come…– Join us in the Instrument Analysis Weekly Meetings

– Friday 8 am PDT (VRVS)

– Still looking for more people…– Our web site

http://www-glast.slac.stanford.edu/IntegrationTest/SVAC/Instrument_Analysis/Instrument_Analysis.html



Cost/Schedule Reports for Cost/Schedule Reports for PresentationPresentation

April 2005 Month EndApril 2005 Month End4.1.9 Integration & Test4.1.9 Integration & Test

Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope



Level 3 Milestone CountLevel 3 Milestone Count

4.1.9 Level 3 Milestones

0

2

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14

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Level 3 Milestone ListLevel 3 Milestone List

AV ActivityID

ND WPNO ActivityDescription

BaselineFinish

-2mVar

-1mVar

DeltaBslnVar

EarlyFinish

TotalFloat

Instrument Project Office (Level 3)4.1.9 I&T

9 1M99010 9 Start 2 Tower Comprehensive Performance Test 04/20/05 6 4 -3 04/25/05A

9 1M99020 9 Start 4 Tower Comprehensive Performance Test 05/12/05 6 1 -7 05/23/05 43

9 1M99030 9 Start 8 Tower Comprehensive Performance Test 06/20/05 0 -4 -5 06/27/05 39

9 1M1001740 B Online FU S/W Final Release-I&T to IOC 07/14/05 0 0 0 07/14/05 572

9 1M99040 9 Start 16 Tower Comprehensive Performance Test 09/07/05 0 -4 -4 09/13/05 25

9 1M1000130 9 LAT Ready to Ship to NRL for Env Test 12/20/05 0 -9 -4 01/03/06 458

9 1M19010 9 Ship LAT to NRL for Env Test 01/03/06 0 -13 -6 01/09/06 30

9 1M19020 9 LAT EMI/EMC Test 02/01/06 1 -14 -8 02/09/06 29

9 1M19030 9 LAT Sine Vibe 02/14/06 1 -14 -8 02/22/06 29

9 1M19040 9 LAT Acoustic Test 02/24/06 0 -16 -10 03/06/06 29

9 1M19050 9 LAT TVAC 04/14/06 0 -15 -9 04/23/06 29

9 1M19060 9 LAT Weight & CG 04/17/06 1 -14 -8 04/25/06 29

9 1M19070 9 Ship LAT to Spectrum Astro 04/21/06 0 -16 -10 05/01/06 29

FY05 FY06FEBMARAPRMAYJUN JUL AUGSEPOCTNOVDECJANFEBMARAPRMAYJUN JUL

© Primavera Systems, Inc.

Run Date 05/23/05 12:41

Data Date 05/01/05

GLAST LAT PROJECTLevel 3 Milestones

Baseline Variance (Organized by Subsystem)

LT-DA: Baseline VarianceFL-D4: AV: Level 3 Milestones

Report #10Sheet 1



Milestone Variance ExplanationMilestone Variance Explanation

• Schedule Impact– None

• Cost Impact– None

• Corrective Action– Not required



Cost ReportCost Report

Reporting Cost Incurred Estimated Cost Estimated Final UnfilledCategory Cost Orders

During Month Cum. to Date Detail Balance of Contractor Contract OutstandingActual Planned Actual Planned MAY05 JUN05 Contract Estimate Value

4.1.9 INTEGRATION & TEST

4.1.9.1 I&T MANAGEMENT 45 47 1,062 1,116 47 49 195 1,354 1,354 0

4.1.9.3 INSTR OPS COORDINATOR 31 31 0 31 31

4.1.9.4 MECH GROUND SUPT EQUIP 84 20 2,055 1,883 29 14 2,098 2,098 4

4.1.9.5 ONLINE SOFTWARE 654 654 654 654

4.1.9.6 INTEG, FACILITIES, CONFIG & TEST 137 252 2,762 3,116 178 186 1,093 4,219 4,219 11

4.1.9.7 PARTICLE TEST 0 43 48 5 48 48 4

4.1.9.8 ENVIRONMENTAL TEST 25 167 307 383 74 78 288 747 747

4.1.9.9 SCIENCE VERIFICATION, ANALYSIS & CALIBRATION 300 300 300 300

CAPW[3]Totals: 290 486 7,214 7,531 327 314 1,596 9,451 9,451 19



Cost Variance ExplanationCost Variance Explanation

• Why overrun/underrun?– Currently on plan

• What will be done to correct?– Stay the course



FTE Report FTE Report (DOE/NASA-funded only)(DOE/NASA-funded only)

4.1.9 Integration & TestFTEs

0.0

5.0

10.0

15.0

20.0

25.0

PLANNED

ACTUALS



FTE Variance ExplanationFTE Variance Explanation

• Why overrun/underrun?– Small overrun due to use of additional SLAC services for

machining• What is the impact?

– None• What will be done to correct?

– N/A

GLAST Large Area Telescope: I & T Input to Monthly Technical/Cost/Schedule Review 05/24/05

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Transcript of GLAST Large Area Telescope: I & T Input to Monthly Technical/Cost/Schedule Review 05/24/05