James Webb Space TelescopeIntegrated Science Instrument Module

Status

Jamie DunnJWST/ISIM Manager

JWST Partner’s WorkshopMay 19, 2009

JWST-PRES-012901

2

Successfully conducted March 9-12 at GSFC Major findings

Highly optimistic schedule which was not closing at the time of CDR

Resolved with new LRD of June 2014 SI flight deliveries not impacted by new LRD

Observatory thermal issues NGAS/GSFC has chosen a set of minimally invasive options

which result in radiator thermal performance margins above 50%

Options to further reduce IEC backloading are still being explored

Identify responsible person for each critical test Ongoing, accomplished as part of test planning

A total of 94 RFAs issued As of today:

52 responses submitted to the originator Of those, 29 have been closed

ISIM CDR

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 II III IV I II III IV I II III IV I II III IV I II III IV I II III IV I II III IV I II III IV I II III IV I II III IV I

ISIM MASTER SCHEDULE

TASK

Reviews/Deliveries to NGST

Integration &Test

Structure

Harness Radiator

Thermal Control Subsystem

ISIM Electronics Compartment

Optical Simulator (OSIM)

NIRSpec

Microshutter Subsystem Detector Subsystem

MIRI

NIRCam

FGS

ISIM Remote Servicing Unit

ICDH

Flight Software

10

PDR

1

T-NAR

4

NAR

3

CDR

9

ICDHETU #1

12

IESSDL

2

IES EMTB

7

IESOTB

2

ICDHFLT

5FLT

6

LRD

5ETU S/C Sim 7FLT S/C Sim

PER1

3

Cryo1

11

Cryo2

3

Res

5

1

PDR

12

CDR

7

RecStru

6

FLT

7

KO

3

PDR

6

CDR

12

FLT

6

PDR

3

CDR

2

FLT H/W

6

KO

6

SRR

8

PDR

12

CDR

6

FLT

7

KO

10

SDR

6

RecOBA

9

Del

2

PDR

9

SITS 10

CDR

128ETU

PER1

FLT10

6

PDR

PDR11

SITS11

SM

STM10

12

ArrayCDR

CDR2

ETU9

1

CDR

9FLT

2FLT

4

SITS

12

CDR 8 STM

PER3

FLT10

5

CDR

10

SITS ETU 10

PER4

FLT11

5

PDR

3

Guider CDR

4

FVTS

3

TFI/SystemsCDR 2

ETU

PER6

FLT11

12 2

SRR

10

PDR

8

DeltaPDR

11

DU

9

CDR

3

FLT

10

CDR

3

S/C SIM

6

ETU Avail

2

ETU #1(to I&T)

5

FLT #1(to I&T)

10

FLT #2(to I&T)

2

PDR

11

S/CSIM

1

S/CSim

4

CDR

surom 2.48

IC10 12

IC118

IC121

IC135

IC148

IC15 (Final) 11

REV-H

As of 05/14/09

DRAFT

Rev H

05/14/09

DRAFT

4

Status and Recent Progress - ASICs

Second flight run of ASICs is in processTeledyne is making excellent progress finalizing the production details, and is working to a schedule that supports deliveries to flight instrument teams beginning this November

Pathfinder units begin assembly this weekFirst flight article builds beginning in July

Have determined that the minimum common mode voltage requirement needs to be increased

Instrument teams notified, design modifications are in process

5

Status and Recent Progress – NIRSpec Detectors

8 Mpix HgCdTe Focal Plane Assembly

Pathfinder Detector System testing is progressing wellDelivery to ESA scheduled for mid-July

Flight Detector System is awaiting delivery of flight ASICsScheduled for mid-November, supporting a Flight DS delivery of February 2010Evaluating options for ASIC common mode voltage requirement change

Plan to implement on the flight FPE prior to flight ASIC deliveryHave two high quality spare SCA candidates in-hand

Selection agreement with ESA pending

Focal Plane Assembly(FPA)

6

Status and Recent Progress - Microshutters

Flight Microshutter System integration is in progress and on track for September delivery to ESA

Selected flight arraysMCE boards in testingFinal magnet motor deliveries from CDA imminent

Final shock requirements agreed to with Mission SystemsPlans envelope cryo and launch environmentsQualification testing at Astrium to begin next week

MicroshutterArray

7

Status and Recent Progress – ISIM Harness Radiator

Critical Design Review scheduled for June 15 at GSFC Had been postponed due to interface loads issues, which have been

resolved Incorporation of a spherical bearing assembly reduced loads and

simplified integration with the backplane

Most drawings complete and out for quote Working toward December delivery

8

Status and Recent Progress – Harness

Harness Qu

an

tity

Sp

ecs

Rcv

d

Des

ign

Par

ts P

rocu

red

Drw

gs

Rel

eas

ed

WO

As

Op

ened

Fab

rica

tio

n

Ele

c. T

esti

ng

Th

erm

. Cyc

ling

Cle

an/R

inse

Bak

e o

ut

Do

cum

enta

tio

n

Sh

ip

NC ICE to ICP-1 Harn Test - Group #1 5 N/A N/ANC ICE to ICP-1 Harn Test - Group #2 12NC ICE to ICP-1 Harn Test - Group #3 - 300 Series 7NC ICE to ICP-1 Harn Test - Group #3 - 400 Series 5 N/ANC ICE to ICP-1 Harn Test - Group #4 - 300 Series 5NC ICE to ICP-1 Harn Test - Group #4 - 400 Series 4 N/ANC ICE-OA ICE-ICP2 Harn FLT (to IEC) 10NC ICE-OA ICP2-ICP1 Harn FLT (to II&T) 28

Have shipped over 150 harness assemblies in support of Instrument ETU and flight builds EGSE (SITS, etc…) ISIM integration and test preparations

Held a successful NIRSpec Detector Harness Manufacturing Readiness Review on May 5, 2009

Tayco has improved the application and control of the potting where the cable meets the backshell

9

Status and Recent Progress – ICDH and IRSU

ICDH

ICDH ETU I&T scheduled to complete in June

Support of instrument thread testing and FSW development will continue

Helping out GLORY… Failure of their flight spacecraft computer

boards has jeopardized the January 2010 launch date

JWST flight assets will be utilized, and can be implemented in time to preserve GLORY’s schedule

Resultant 3 month impact to ISIM ICDH can be absorbed

IRSU Protoflight boards build in process Box level I&T to begin in September

IRSU

10

Flight Software Build IC11 testing to begin next month NIRSpec MSS FSW

Began development of MSS C4.1 (final build) NIRSpec DS FSW has transitioned into “maintenance”

mode

Status and Recent Progress – ISIM Software and ITSS

ITSS Focus is now shifting to:

Build and test of the Certification Lab at GSFC for ISIM I&T

Build and test of ISIM Electrical Simulators for testbeds at Northrop Grumman

Continuing to support systems in the field in maintenance mode

Continuing to support instrument interface testing

11

Status and Recent Progress – ISIM Electronics Compartment

Integration of the prototype baffle test unit completed and the first unit is being tested.

The first cure cycle of the IEC shell is complete. Co-cure inserts and final fiberglass layer fabrication begins in the

first week of May. Inserts ready for installation

12

Status and Recent Progress – ISIM Structure Nearly Complete

H J

K L M N (GE2070600)

E

F G

A B C

Assy Sequence Left to Right, Top to Bottom

Flight Structure delivery on schedule for July!

13

Status and Recent Progress – ISIM Structure Deck M

14

LOTS of work on test data sets in support of ISIM cryo performance testing Extensive analysis efforts in support of test budgets, wavefront sensing,

calibrations, stray light, etc… Cryogenic metrology equipment/plans nearly complete (photogrammetry, laser

radar, MATF, IATF, scale bars, etc…) Optics Summit scheduled for June 16-19 at the ECO

Agenda/Objectives: Update on ISIM optical alignment and verification plan, flows, and test error

budgets not previously covered Follow-up on actions from IOTA in 2008 and ISIM CDR

Status and Recent Progress – ISIM Optics

Cryogenic metrology hardware

Status and Recent Progress – OSIM

15

Ball components are completing assembly and most Goddard components are in fabrication

Primary mirror scheduled for shipment next week Ball deliveries on target for end of June

OSIM integration at GSFC will begin in July

Pupil Select Mechanism wheel Alignment Diagnostics Module

16

Status and Recent Progress – OSIM

Fold Mirror 2 after coating

Fine Phase Plate after coating

Primary Mirror Interferometric testing

Optical Bench Assembly

17

Status and Recent Progress – MGSE

Lower GESHA

Upper GESHA•Assembled w/ spare h/w, ready for chem film•Ship Date May, following ITP to GESHA mating interface work

SAMORAI•Assembled and ready for proof testing

18

ISIM Support Stand Dolly (ISSD)-Full assembly to be complete at GSFC

(April 2009)

ISIM Metrology Integration Stand (IMIS)-Full assembly to be completed at GSFC

(April 2009)

Received March 24, 2009 Received March 24, 2009

Dolly-to-Stand Kinematic Interface

3 2 1

Status and Recent Progress – MGSE

19

Status and Recent Progress – Integration and Test

8 Mpix HgCdTe Focal Plane Assembly

Space Environment Simulator modifications are complete, and helium shroud is undergoing acceptance testing

Operations team lead by Debbie Ramey is focusing on procedure development and pending instrument ETU deliveries starting late summer

Beginning in June… Internal transition to the GSFC I&T complex

begins Major MGSE build-up and integration space

secured

20

In a year…Flight ISIM Integration and Test begins!

ISIM Year Ahead