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JWST OTE and OTIS Review

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JWST OTE and OTIS Review 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
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