Telescope, ISIM, Spacecraft & Observatory Development ======- Pictorial History -
Gary Matthews Chris Gunn
1 JWST OTE and OTIS Review
• Acronym Review • OTE – Optical Telescope Element – The Telescope • ISIM – Integrated Science Instrument Module • OTIS – OTE/ISIM Integrated Subsystem – The Camera – Payload • SCE – Spacecraft Element
• Current Status • The OTE/ISIM – OTIS are now part of an Observatory at NGAS
2019 Mirror Tech Days – JWST OTE Review 2 Hardware Timeline 2012 2014 2015 2016
SSDIF Pathfinder OTIS OTIS OTE Optical OTE/ISIM OTIS Vibe Cleanroom Optical Thermal Acoustic Integration Integration Test Preps Integration Closeouts Test
Pathfinder OTE Optical Optical Integration 2017 Integration
JSC Cleanroom Cryo Final OTIS OGSE1 OGSE2 Thermal & Chamber Load Chamber Cryo (CoC Only) (BIA) Pathfinder Preps Test Cert Test
2018 here are We Ship SCE/OTIS To NGAS I&T
3 - 2012 - Before we can start
SSDIF and JSC Facility Modifications
2019 Mirror Tech Days – JWST OTE Review 4 SSDIF* pre-OTE
SSDIF before JWST
Hubble stuff all over the place
Pre-ISIM and OTE
* Spacecraft Systems Development and Integration Facility
2019 Mirror Tech Days – JWST OTE Review 5 AOAS* Installation in SSDIF
Need finished picture
*Ambient Optical Alignment Stand
2019 Mirror Tech Days – JWST OTE Review 6 OTE Integration Equipment
PAIF placing primary mirror system assembly (PMSA) onto the Backplane Stability Thermal Assembly (BSTA)
AOAS in the GSFC Cleanroom 2019 Mirror Tech Days – JWST OTE Review 7 Pre-JWST view of the JSC vacuum chamber
A lot of potential stuff here. Your discretion
The transformation
As we arrived – The original chamber. Before the clean room Clean room installation The Harris upgrades. Maybe 10-15 shots here?
2019 Mirror Tech Days – JWST OTE Review 8 A cleanroom and optical test equipment emerges
CIAF CMM Operations
Some pics of the team using the CMM, flip-over fixture, etc
2019 Mirror Tech Days – JWST OTE Review 9 Before and After
2019 Mirror Tech Days – JWST OTE Review 10 Chamber Configuration for Optical Testing Isolators
Downrods
COCOA
USF
ACF
PG Systems
Telescope Rods
OTIS 2X Mass Sim
HOSS
2019 Mirror Tech Days – JWST OTE Review 11 COCOA* during integration on the cleanroom floor
* Center of Curvature Optical Assembly
• Multiwavelength Interferometer • Primary Mirror Alignment Aids • DMI motion detection system • Three Autocollimating Flats
2019 Mirror Tech Days – JWST OTE Review 12 Photogrammetry Systems
• 4 rotating “windmills” containing canisters with photogrammetry cameras installed • Provides angular diversity • Allowed absolute measurement of the system to ~100 microns at 40K in vacuum • Minimal heat leakage with coated double window configuration
2019 Mirror Tech Days – JWST OTE Review 13 HOSS*
* Hardpoint/Offloader Support Structure
• Welded Stainless Steel 304L structure
2019 Mirror Tech Days – JWST OTE Review 14 Cryo Load Test
2019 Mirror Tech Days – JWST OTE Review 15 The Early Days Mirror Development and Pathfinder Integration
2019 Mirror Tech Days – JWST OTE Review 16 Mirrors are beryllium optimized for cryo performance
2019 Mirror Tech Days – JWST OTE Review 17 Approved for public release; distribution unlimited. Northrop Grumman Case 12-1766 dated 10/5/12. PMSA* Mechanisms
* Primary Mirror Segment Assembly
2019 Mirror Tech Days – JWST OTE Review 18 Approved for public release; distribution unlimited. Northrop Grumman Case 12-1766 dated 10/5/12. Cryo null figuring testing at Marshall Spaceflight Center
2019 Mirror Tech Days – JWST OTE Review 19 PMSA Alignment Metrology on a CMM
2019 Mirror Tech Days – JWST OTE Review 20 Pathfinder Mirror Integration
2019 Mirror Tech Days – JWST OTE Review 21 Pathfinder PMSA mirror integration in the AOAS Pathfinder Integration using the PAIF Delivery to SSDIF (Primary Mirror Integration – Maybe a few of the PAIF. Mirror Others as you see fit Alignment & Integration Fixture) robotic arm
2019 Mirror Tech Days – JWST OTE Review 22 Pathfinder Optical Testing
2019 Mirror Tech Days – JWST OTE Review 23 OTIS Risk Reduction at JSC 3 Pathfinder Tests/Rehearsals in JSC Chamber to test the test equipment and ready the test team . Only thing not tested prior to OTIS testing was OTIS itself
Optical Ground Support OGSE #2: 2nd Cryo Optical Test Thermal Pathfinder: Verified all Equipment (OGSE) #1: Prove- but w/ Flight Aft Optics thermal environment/boundary out optical GSE. Featured Cryo System and AOS Source Plate conditions (e.g., sunshield layer Optical Test on Pathfinder OTE Assembly. Full check-out of 5 thermal simulator, ISIM w/ 2 Spare PMSA’s and Spare optical GSE and measurement radiator sinks) Secondary schemes
. Learned a lot about vibration isolation, facility readiness, and GSE performance . Successful “Ready to Receive OTIS” review at JSC on 3/15/2017
Use of data disclosed on this page is subject to restriction(s) on the title page of this document Pathfinder ready to roll into the chamber for OGSE-1
25 2019 Mirror Tech Days – JWST OTE Review OGSE-1 Test Configuration
2019 Mirror Tech Days – JWST OTE Review 26 OGSE-2 Test Configuration With the Flight AOS
2019 Mirror Tech Days – JWST OTE Review 27 Thermal Pathfinder Test Configuration
2019 Mirror Tech Days – JWST OTE Review 28 Telescope Integration
2019 Mirror Tech Days – JWST OTE Review 29 Unloading the PMSA from their hermetically sealed shipping container
2019 Mirror Tech Days – JWST OTE Review 30 PMSA shown in the flip- over and handling cart
31 First flight PMSA integration.
Protective mirror covers used during integration operations
2019 Mirror Tech Days – JWST OTE Review 32 Last flight PMSA integration
2019 Mirror Tech Days – JWST OTE Review 33 Completed primary mirror with protective covers still in place
2019 Mirror Tech Days – JWST OTE Review 34 Secondary Mirror integration
2019 Mirror Tech Days – JWST OTE Review 35 Completed telescope being removed from the AOAS in preparation for ISIM installation after mirror protective cover removal
2019 Mirror Tech Days – JWST OTE Review 36 Ready for the grand reveal of the golden primary mirror
2019 Mirror Tech Days – JWST OTE Review 37 Protective cover removal
2019 Mirror Tech Days – JWST OTE Review 38 Completed telescope with ISIM in the background ready for installation
39 ISIM Integration
2019 Mirror Tech Days – JWST OTE Review 40 ISIM Structure cryo load test configuration
41 NIRCam focal plane
42 MIRI integration Delivered May 2012
43 FGS integration Delivered July 2012
44 Flight NIRCam delivered to ISIM I&T July 2013
45 NIRSpec Arrival in the SSDIF, September 2013
46 ISIM Gravity Release Test
47 ISIM Structure with instruments integrated
48 OSIM (Optical Simulator) installation into the GSFC SES vacuum chamber
49 ISIM cryo vacuum testing
50 ISIM in the thermal vacuum chamber
51 ISIM Fully Integrated, March 2014
MIRI will provide humanity’s first high angular resolution view of the mid-infrared universe
FGS/NIRISS
MIRI flight model 10 Oct 2014 Presentation to: GSFC Code 60MIRI0 Director's Seminar: Distribution Unlimited 13
NIRSpec
NIRCam ISIM Ready for integration
53 OTIS Integration
2019 Mirror Tech Days – JWST OTE Review 54 The large FIR (Fixed ISIM Radiator) is integrated onto the telescope structure
2019 Mirror Tech Days – JWST OTE Review 55 Telescope cup- down in the AOAS
2019 Mirror Tech Days – JWST OTE Review 56 ISIM being lowered into position
Very tight clearances during this operation. MLI rubbed during integration
2019 Mirror Tech Days – JWST OTE Review 57 ISIM integration and nail biting contest
2019 Mirror Tech Days – JWST OTE Review 58 OTIS Blanket Closeouts
2019 Mirror Tech Days – JWST OTE Review 59 Aft Deployment ISIM Radiator (ADIR) Integration
2019 Mirror Tech Days – JWST OTE Review 60 ISIM Electronics Compartment (IEC) Integration
2019 Mirror Tech Days – JWST OTE Review 61 Harness Radiator (HR) Integration
2019 Mirror Tech Days – JWST OTE Review 62 OTIS on its way to acoustics and vibe testing
2019 Mirror Tech Days – JWST OTE Review 63 Final pose prior to pack and ship to JSC
64 OTIS Cryo-Optical Test
2019 Mirror Tech Days – JWST OTE Review 65 The view from the cameras in the JSC cleanroom
66 Reflective view off the secondary mirror in the JSC cleanroom
67 OTIS being placed on the HOSS in preparation for tolling into the chamber
The SVTS (Space Vehicle Thermal Simulator) can be seen in the background
68 2019 Mirror Tech Days – JWST OTE Review 69 2019 Mirror Tech Days – JWST OTE Review 70 2019 Mirror Tech Days – JWST OTE Review 71 JSC Cryo Test Control Room
2019 Mirror Tech Days – JWST OTE Review 72 JSC Control Room during Harvey
73 2019 Mirror Tech Days – JWST OTE Review 74 Path to the Observatory
2019 Mirror Tech Days – JWST OTE Review 75 Packing Up At JSC
2019 Mirror Tech Days – JWST OTE Review 76 Good Bye Houston
77 A very tight fit in the C5 aircraft 2019 Mirror Tech Days – JWST OTE Review 78 Unpacking at Northrop Grumman in the M8 high bay cleanroom
79 Secondary Mirror deployment test.
NOTE: The next deployment of the SMSS will be on the way to L2!
2019 Mirror Tech Days – JWST OTE Review 80 OTIS ready for Observatory Integration
2019 Mirror Tech Days – JWST OTE Review 81 OTIS being integrated into the spacecraft
2019 Mirror Tech Days – JWST OTE Review 82 Spacecraft and Sun Shield
83 Spacecraft core composite structure
2019 Mirror Tech Days – JWST OTE Review 84 Sunshield layers being placed during initial integration
2019 Mirror Tech Days – JWST OTE Review 85 Tensioned flight sunshield prior to spacecraft integration
2019 Mirror Tech Days – JWST OTE Review 86 Fully tensioned sunshield after spacecraft integration
2019 Mirror Tech Days – JWST OTE Review 87 Technicians working on the spacecraft
2019 Mirror Tech Days – JWST OTE Review 88 OTIS simulator with the sunshield being prepared for environmental testing
2019 Mirror Tech Days – JWST OTE Review 89 Unitized Pallet Structure (UPS) retains the sunshield during launch
2019 Mirror Tech Days – JWST OTE Review 90 Spacecraft being moved in its mobile cleanroom to the environmental test facilities at Space Park
2019 Mirror Tech Days – JWST OTE Review 91 Observatory
92 OTIS being integrated into the spacecraft
2019 Mirror Tech Days – JWST OTE Review 93 The Observatory
2019 Mirror Tech Days – JWST OTE Review 94 The Observatory
2019 Mirror Tech Days – JWST OTE Review 95 The Observatory with deployed and tensioned sun shield
2019 Mirror Tech Days – JWST OTE Review 96 2019 Mirror Tech Days – JWST OTE Review 97 Thank you to all JWST team members for their contributions to the JWST design, development, integration, and test!
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