Transcript Document 7134187

JWST-PRES-012901
James Webb Space Telescope
Integrated Science Instrument Module
Status
Jamie Dunn
JWST/ISIM Manager
JWST Partner’s Workshop
May 19, 2009
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
2
DRAFT
REV-H
ISIM MASTER SCHEDULE
2005
TASK
II
III
IV
2006
I
II
III
2007
IV
I
II
PDR
Reviews/Deliveries to NGST
10
III
2008
IV
I
II
T-NAR
III
2009
IV
I
CDR
4
3
1
IV
FLT S/C Sim
CDR
12
7
PDR
CDR
7
3
6
I
IES IES
IES
SDL EMTB OTB
12
2
PDR
CDR
8
12
NIRSpec
PDR
SITS
2
9
PER
1 Cry o1
7
SDR
7
10
6
Array
CDR
SITS
11
CDR
STM
10
1
CDR
2
PDR
2
II
III
IV
LRD
FLT
5
6
Del
9
STM
PDR
10
PER
4
PER
6
Delta
PDR DU
11
CDR
FLT
9
3
ETU
Av ail
S/C SIM
10
3
S/C S/C
SIM Sim CDR
11
1
FLT
11
ETU
2
3
8
FLT
10
ETU 10
TFI/Sy stems
CDR
CDR
ICDH
3 5
2014
I
FLT
2
10
3 4
2
Res
11
IV
FLT
10
PER
3
Guider CDR FVTS
12
9
ETU
9
SITS
5
SRR
PER
1
FLT
12
5
PDR
Cry o2
III
8
CDR
NIRCam
2
II
ETU
8
CDR
12
4
7
2013
I
6
KO
6
SITS
ICDH
FLT
IV
FLT
Rec
OBA
SM
MIRI
III
10 12
PDR
PDR
11
2
II
12
3
6
2012
I
FLT
6
SRR
IV
6
FLT H/W
6
III
FLT
CDR
KO
II
3
PDR
CDR
Flight Software
2011
IV
9
KO
Optical Simulator (OSIM)
ISIM Remote Servicing Unit
III
ICDH
ETU #1
Rec
Stru
1
Thermal Control Subsystem
FGS
II
5
Harness Radiator
Microshutter Subsystem
Detector Subsystem
2010
I
ETU S/C Sim
PDR
ISIM Electronics Compartment
III
NAR
Integration &Test
Structure
II
ETU #1
(to I&T)
6
4 surom 2.4 IC10
8
12
FLT #1 FLT #2
(to I&T) (to I&T)
2 5
IC11
8
FLT
11
IC12
1
10
IC13 IC14 IC15 (Final)
5
8 11
As of 05/14/09
I
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
4
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)
5
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
5
12
7
5
5
4
10
28
Ship
Documentation
Bake out
Clean/Rinse
Therm. Cycling
Elec. Testing
Fabrication
WOAs Opened
Drwgs Released
Parts Procured
Design
Specs Rcvd
Harness
NC ICE to ICP-1 Harn Test - Group #1
NC ICE to ICP-1 Harn Test - Group #2
NC ICE to ICP-1 Harn Test - Group #3 - 300 Series
NC ICE to ICP-1 Harn Test - Group #3 - 400 Series
NC ICE to ICP-1 Harn Test - Group #4 - 300 Series
NC ICE to ICP-1 Harn Test - Group #4 - 400 Series
NC ICE-OA ICE-ICP2 Harn FLT (to IEC)
NC ICE-OA ICP2-ICP1 Harn FLT (to II&T)
Quantity
 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
N/A N/A
N/A
N/A
8
Status and Recent Progress – ICDH and IRSU
 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
ICDH
 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
9
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 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
10
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.
11
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
C
E
F
G
H
J
K
L
M
N (GE2070600)
Status and Recent Progress – ISIM Structure Deck M
13
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
14
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
15
Status and Recent Progress – OSIM
Primary Mirror Interferometric testing
Optical Bench Assembly
Fold Mirror 2 after
coating
Fine Phase Plate after coating
16
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)
ISIM Metrology Integration Stand (IMIS)
-Full assembly to be complete at GSFC
(April 2009)
-Full assembly to be completed at GSFC
(April 2009)
Dolly-to-Stand Kinematic Interface
3
2
1
18
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 I&T 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!
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