James Webb Space Telescope Integrated Science Instrument Module Status

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James Webb Space TelescopeIntegrated Science
Instrument ModuleStatus
JWST-PRES-012901
Jamie Dunn JWST/ISIM Manager JWST Partners
Workshop May 19, 2009
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ISIM CDR

• 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

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DRAFT
REV-H
DRAFT Rev H
05/14/09
As of 05/14/09
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Status and Recent Progress - ASICs

• Second flight run of ASICs is in process
• Teledyne 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 week
• First 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

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Status and Recent Progress NIRSpec Detectors

• Pathfinder Detector System testing is progressing
  well
• Delivery to ESA scheduled for mid-July
• Flight Detector System is awaiting delivery of
  flight ASICs
• Scheduled for mid-November, supporting a Flight
  DS delivery of February 2010
• Evaluating options for ASIC common mode voltage
  requirement change
• Plan to implement on the flight FPE prior to
  flight ASIC delivery
• Have two high quality spare SCA candidates
  in-hand
• Selection agreement with ESA pending

8 Mpix HgCdTe Focal Plane Assembly
Focal Plane Assembly (FPA)
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Status and Recent Progress - Microshutters

• Flight Microshutter System integration is in
  progress and on track for September delivery to
  ESA
• Selected flight arrays
• MCE boards in testing
• Final magnet motor deliveries from CDA imminent
• Final shock requirements agreed to with Mission
  Systems
• Plans envelope cryo and launch environments
• Qualification testing at Astrium to begin next
  week

Microshutter Array
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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

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Status and Recent Progress Harness

• 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

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Status and Recent Progress ICDH and IRSU

• ICDH ETU IT 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 GLORYs schedule
• Resultant 3 month impact to ISIM ICDH can be
  absorbed
• IRSU Protoflight boards build in process
• Box level IT to begin in September

ICDH
IRSU
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Status and Recent Progress ISIM Software and
ITSS

• 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

• ITSS
• Focus is now shifting to
• Build and test of the Certification Lab at GSFC
  for ISIM IT
• 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

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Status and Recent Progress ISIM Electronics
Compartment
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

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

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Status and Recent Progress ISIM Structure
Nearly Complete

• Flight Structure delivery on schedule for July!

Assy Sequence Left to Right, Top to Bottom
A
B
E
C
H
J
F
G
N (GE2070600)
K
L
M
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Status and Recent Progress ISIM Structure Deck M
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Status and Recent Progress ISIM Optics

• 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

Cryogenic metrology hardware
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Status and Recent Progress OSIM

• 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
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Status and Recent Progress OSIM
Primary Mirror Interferometric testing
Optical Bench Assembly
Fold Mirror 2 after coating
Fine Phase Plate after coating
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Status and Recent Progress MGSE
Lower GESHA

• SAMORAI
• Assembled and ready for proof testing

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

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Status and Recent Progress MGSE
Received March 24, 2009
Received March 24, 2009

• 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)

Dolly-to-Stand Kinematic Interface
3
2
1
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Status and Recent Progress Integration and Test

• 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 IT complex
  begins
• Major MGSE build-up and integration space secured

8 Mpix HgCdTe Focal Plane Assembly
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ISIM Year Ahead

• In a year
• Flight ISIM Integration and Test begins!