01-1 Partners workshop Ottawa 19 May 2009 FGS Status Report Partners workshop May 2009 Presentation by: TF PI – René Doyon (U de Mtl) Project Manager – Karl Saad (CSA) JWST-PRES

01-2 Partners workshop Ottawa 19 May 2009 Presentation Overview 1.Achievements since Last Partner’s Workshop 2. Project risks - Top 5 risks and mitigation plan 3.Project Issues 4.Schedule status - Schedule overview - critical path - Contingency 4.Science portion -TFI -Guider 5. Conclusion/summary

01-3 Partners workshop Ottawa 19 May 2009 Achievements since last Partner’s Workshop Start of ETU integration activities ETU Guider ETU – TFI Mass Dummies

01-4 Partners workshop Ottawa 19 May 2009 Achievements since last Partner’s Workshop Start of ETU integration activities (continued) ETU Hardware – procurement Optical Assembly harnesses from IMP received at COM DEV Some transitional harnesses from NASA received Trial fit of TFI baffles

01-5 Partners workshop Ottawa 19 May 2009 Achievements since last Partner’s Workshop 1 st iteration of Cryo Pupil Alignment test Encountered safety issues with the test set-up – these were corrected. Results over temperature were not sufficiently accurate to definitively determine pupil shear. Thermal strap stiffness identified as significant source of fixture distortion during temperature excursion to cryo.

01-6 Partners workshop Ottawa 19 May 2009 Achievements since last Partner’s Workshop Mechanisms – Fine Focus Design was reviewed & changed to address negative stress margin in flexible coupling (connecting link) Confirmed by testing Initial Characterization complete Included cryogenic testing and low level random vibration testing in both park and no-park positions. Parking preload removed from design. Mirror twist induced by parking preload was relatively high (>1 arc min). Mirror shall now be parked at nominal focus.

01-7 Partners workshop Ottawa 19 May 2009 Achievements since last Partner’s Workshop Flight Software Development Provided ID and ACQ mode interim build (aka Build 3 interim); Successful prototyping of Etalon Control characterization algorithm with EM ECE and P0 Etalon; Held successful Build 3 Final Design Review, covering: TFI Functionality and interface with ISIM FSW; Guider fault management and updates. Completed coding of Build 3 and started HW/SW integration testing ETU – Electronics Started Detector & ASIC sub-assembly integration & testing Captured electrical baseline measurements Etalon CDR All RIDs(RFAs) closed.

01-8 Partners workshop Ottawa 19 May 2009 Achievements since last Partner’s Workshop PFM Activities MRR #1 held January 29, 2009 KMs and Bench assembly KMs and Bench received from LHM KMs successfully proof-load tested Optical bench at COM DEV PFM KM proof loading test PFM Optical bench at UCC for cleaning

01-9 Partners workshop Ottawa 19 May 2009 PFM Activities (continued) PFM Pick-Off Mirror (POM) design is unchanged from ETU POM. Delivered to specification from Corning Netoptics Cryo WFE test scheduled for June, 2009 PFM Guider TMA in performance testing: PFM acceptance vibration test Passed, WFE shift was less than 10nm over each field Achievements since last Partner’s Workshop PFM Pick-Off Mirrior PFM Guider TMA under test

01-10 Partners workshop Ottawa 19 May 2009 Achievements since last Partner’s Workshop PFM Activities (continued) Dual Filter Wheel (DW) Mechanism Life Test Unit (LTU) Geared motor testing at cryo completed. Wheel assembly tests successfully performed under ambient Coarse Focus Mechanism – LTU Assembly and integration on-going PFM Detector selection All testing of SCA level FGS detectors has been completed. FGS is left with 4 units to meet its need of 3 detectors (2 guider & 1 TFI) plus one spare. A Flight Model FPA manufacturing readiness review was at Teledyne. Go ahead has been given to proceed with F016 as Detector PFM

01-11 Partners workshop Ottawa 19 May 2009 Achievements since last Partner’s Workshop Ground Support Equipment HITIF (Horizontal Integration Tool Interface Frame) Contract award end April and MRR held 13 May 09 OGSE received and post delivery checks and alignment performed As designed HITIF concept Removal of OGSE from its shipping container

01-12 Partners workshop Ottawa 19 May 2009 Achievements since last Partner’s Workshop Ground Support Equipment FGS Electronics Simulator FGSES Sim #1 and #2 delivered to ISIM cert lab COM DEV cryovac facilities – procured one additional chamber for schedule risk mitigation FGSES

01-13 Partners workshop Ottawa 19 May 2009 Project Risks Consequence

01-14 Partners workshop Ottawa 19 May 2009 Project Risks - Top 5 - Mitigation Flight ASIC performance vs interim ASICs Risk description Potential differences between flight and interim ASICs Knowledge of integration techniques Lack of documentation / ITAR issues / IRCD definition Looking at building more robustness into FGS electronics design Getting quantitative agreement on the key ASIC interfaces. Monitor closely evolution of flight ASIC versus F2 ASIC / Direct support from ISIM Risk timeframe: May 2009 to Mar 2010 Overall project schedule contingency Risk Description: ASIC & Detector deliveries late Early into the ETU I&T phase – technical risks Aggressive stands on critical path activities Risk timeframe: May 2009 to Nov 2010

01-15 Partners workshop Ottawa 19 May 2009 Project Risks - Top 5 - Mitigation Integration & Testing of Detector subassembly (characterization) Risk description: Directly linked to flight ASIC risk above Detector potential difference between ETU and Flight unit use F2 ASICs to test ASIC/Detector combination to characterize system sensitivity to ASIC dependence. Risk timeframe: Sep 2009 to Jan 2010 Detector fail to meet specifications Risk description – as per title Implemented more QA oversight Considering additional lot Support from ISIM in reviewing test data from Teledyne Risk timeframe: May 2009 to Jan 2010

01-16 Partners workshop Ottawa 19 May 2009 Project Risks - Top 5 - Mitigation Flight Detector Delivery to FGS Risk description Deliver from Teledyne – continuous delays from Teledyne on delivery dates Monitor Teledyne closely Evaluating the procurement of additional lot (to mitigate low yield) Risk timeframe: May 2009 to Jan 2010

01-17 Partners workshop Ottawa 19 May 2009 Project Issues under investigation SIDECAR Control Electronics Problem of noise in the Detector/ASIC & SCE sub-system Difficulties with ASIC integration Recent breakthroughs in noise reduction: noise significantly reduced in data analysis by including the reference pixels; stiffening up SCE Vref and VDDA supplies; and ASIC Bias tuning by Teledyne Dual Wheel – bearing Torque levels at cryo are not consistent Analysis and test results indicate a retainer needs to be redesign Dual Wheel

01-18 Partners workshop Ottawa 19 May 2009 Project Issues under investigation PFM Guider TMA has been through two unsuccessful cryo WFE test cycles: 1) Unacceptable change in WFE in first cryo run due to settling. 2)Full test as per procedure was not completed due to GSE issue Translation stage motor (bearing) failure However, preliminary WFE data indicated that the change was much less than test 1 Plan is to fix the translation stage and retest.

01-19 Partners workshop Ottawa 19 May 2009 Project Schedule

01-20 Partners workshop Ottawa 19 May 2009 Project Schedule – Critical Path & Contingency For ETU: (January 12, 2010) Detector Assembly FFM – 1 week from critical path EU and repeat of the Cryo Pupil Alignment – 2 weeks from critical path For PFM (September 29, 2010) No overlap of ETU & PFM activities at test facilities DW – 5 weeks from critical path Flat Field and Wave Cal Optics – 6 week from critical path

01-21 Partners workshop Ottawa 19 May 2009 Project Schedule – Critical Path & Contingency Schedule Contingency ETU ETU PSR date: 12 Jan week (PSR + Shipment* – 26 Feb 2010 NASA Need date ) PFM PFM PSR date: 29 Sep weeks (PSR + Shipment* – 30 Nov 2010 NASA Need date ) (assuming 7 days delivery delay)

01-22 Partners workshop Ottawa 19 May 2009 Science Portion Science Guider & TFI By Rene Doyon

01-23 Partners workshop Ottawa 19 May 2009 FPA selection status One device (F16) was chosen as flight spare. Three remaining detector candidates: F21, F22 & F27 F22 has a lot of hot pixels (high dark current) but may be suitable for the guider. Evaluation is underway. F27 is our best detector (good QE, low read noise & dark current). Would be the natural choice for TFI but its very good blue response makes it very attractive for the guider too.

01-24 Partners workshop Ottawa 19 May 2009 Predicted Flight coating performance

01-25 Partners workshop Ottawa 19 May 2009 Predicted Transmittance 25

01-26 Partners workshop Ottawa 19 May 2009 Maximum Wavelength Shift vs Phase Requirement

01-27 Partners workshop Ottawa 19 May 2009 Performance at 1.50 µm

01-28 Partners workshop Ottawa 19 May 2009 BARR Filter prototypes 4 prototype filters have been successfully manufactured: F157, F226, F245, F481) The roll-off (slope) within spec: <0.025 for F481, < 0.02 for others Peak transmission within spec: Absolute T≥85% within 80% of the bandwidth at the 90% relative to peak points. Out-of-band blocking: : well below Ready to proceed to the flight production

01-29 Partners workshop Ottawa 19 May 2009 BARR Filter prototype – short λ

01-30 Partners workshop Ottawa 19 May 2009 Barr filter – long λ

01-31 Partners workshop Ottawa 19 May 2009 Out-of-band Blocking < 0.01%

01-32 Partners workshop Ottawa 19 May 2009 PSF movie (  m) obtained with a short wavelength etalon prototype ghost FT 

01-33 Partners workshop Ottawa 19 May 2009 Contrast curve before and after speckle suppression Speckle noise is reduced by more than a factor 10. Still preliminary but very encouraging results.

01-34 Partners workshop Ottawa 19 May 2009 Laboratory PSF subtraction performance fake Companion fainter added Subtraction from two adjacent wavelengths Raw PSFAfter subtraction

01-35 Partners workshop Ottawa 19 May 2009 Slope is: mas / nm NEA = (WFE-105)*0.012 For WFE = 225 nm, NEA = 4.5 mas Guider: NEA changes with OTE WFE Nominal (5x5 px) centroiding precision and read noise. By John Hutchings

01-36 Partners workshop Ottawa 19 May 2009 Guider: NEA vs signal from lab data Heavy line is model for similar centroid window and noise, flight centroid algorithm Model By John Hutchings

01-37 Partners workshop Ottawa 19 May 2009 Guider: CNL measured from lab data Systematic centroid offsets from pixel-sampled data 2 mas X-direction cuts through different places within detector pixel This will be corrected for in reporting guider centroids Signal 900e, 1.5 microns Signal 5000e, 3.2 microns Verification of modelled performance, plus pixel-to-pixel non-uniformities, ongoing By John Hutchings

01-38 Partners workshop Ottawa 19 May 2009 Guider signal depends on the detector selected Estimates for the presently-considered PFM and flight detectors Guide star signal mostly at short wavelengths By John Hutchings

01-39 Partners workshop Ottawa 19 May 2009 Guiding on primary segment images during primary mirror alignment These are results for PSFs from individual primary mirror segments in the early stages of focus and alignment. Little difference between G0 and M5 guide star types. NEA 8-20 mas required for this stage of the process. Will require an isolated guide star of 15 mag or brighter. Some images will be very non-circular. Image with 8x8 and 16x16 centroid boxes superposed ~15 mag By John Hutchings

01-40 Partners workshop Ottawa 19 May 2009 Conclusion Main challenges ASIC-Detector integration Detector Delivery to FGS ASIC delivery to FGS Teledyne cost overruns Mechanism – Dual Wheel bearing issues Overall schedule contingency The project is in ETU phase, having started subassembly testing This is the phase under which we will encounter most of our technical risks Aggressive risk and scope management will be key for project success. The way forward will necessitate mutual support between FGS and NASA on the ASIC and detector front – which is occurring already