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James Webb Space Telescope (JWST) Project Status for the AAS Town Hall

James Webb Space Telescope (JWST) Project Status for the AAS Town Hall. Phil Sabelhaus JWST Program Manager January 5, 2010. James Webb Space Telescope (JWST). Organization Mission Lead: Goddard Space Flight Center International collaboration with ESA & CSA

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James Webb Space Telescope (JWST) Project Status for the AAS Town Hall

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  1. James Webb Space Telescope (JWST) Project Status for the AAS Town Hall Phil Sabelhaus JWST Program Manager January 5, 2010

  2. James Webb Space Telescope (JWST) Organization • Mission Lead: Goddard Space Flight Center • International collaboration with ESA & CSA • Prime Contractor: Northrop Grumman Space Technology • Instruments: • Near Infrared Camera (NIRCam) – Univ. of Arizona • Near Infrared Spectrograph (NIRSpec) – ESA • Mid-Infrared Instrument (MIRI) – JPL/ESA • Fine Guidance Sensor (FGS) – CSA • Operations: Space Telescope Science Institute Description • Deployable infrared telescope with 6.5 meter diameter segmented adjustable primary mirror • Cryogenic temperature telescope and instruments for infrared performance • Launch June 2014 on an ESA-supplied Ariane 5 rocket to Sun-Earth L2 • 5-year science mission (10-year goal) JWST Science Themes Planetary systems and the origin of life End of the dark ages: First light and reionization The assembly of galaxies Birth of stars and proto-planetary systems www.JWST.nasa.gov

  3. JWST Full Scale Model at the GSFC

  4. JWST Compared with other Telescopes • Hubble Space Telescope (HST): • 2.7 x diameter, 2.7 x longer wavelength • HST NICMOS: • 189 x FoV, • 38 x better sensitivity at K band, 8 x at H band • Spitzer: • 8 x Spitzer diameter • Diffraction limited at 2 microns vs. 6 microns • 8 to 24 x better angular resolution • 10 x lower dark current supports R ~ 1000 at high redshift • Ground: • JWST and GSMT are complementary where capabilities overlap: • HST: Keck diameter ratio ~ JWST:GSMT • Background ~1,000,000 x larger on ground at 5 microns Real data: Spitzer 25 hours Simulated: JWST 3 hours

  5. JWST Team and Responsibilities • Integrated Science Instrument Module (ISIM) – GSFC • Structure – GSFC/ATK • MIRI- JPL & ESA/European Consortium • NIRSpec- ESA/Astrium • NIRCam – U of Arizona/LMATC • FGS/TFI – CSA/COM DEV ISIM Radiators- NGAS/Ball Optical Telescope Element (OTE) – NGAS/Ball Backplane Structure – NGAS/ATK ISIM Electronics Compartment (IEC)- GSFC Deployment Tower - NGAS Sunshield – NGASMembrane – NGAS/SRS Spacecraft - NGAS MIRI Cryocooler – JPL/NGAS Instrument C&DH - GSFC Launch Vehicle & Adapter- ESA/Arianespace Overall Observatory - NGAS

  6. Ariane PPF S5 Communications Coverage Provided For all Critical Events JWST System Architecture • Observatory Deployments • Solar Array • High Gain/ Medium Antennas • Sunshield • Optical Telescope Element L2 Point Ariane 5 Upper Stage Injects JWST Into Direct Transfer Trajectory Observatory – Upper Stage Separation L2 Lissajous Orbit L2 Transfer Trajectory S-Band Tlm Link ( 2Kbps) S-Band Cmd Link (0.25 Kbps) S-Band Ranging Ariane 5 Launch System Ka-Band Science Link (Selectable 7, 14, 28 Mbps) S-Band Tlm Link (Selectable 0.2 - 40 Kbps) S-Band Cmd (Selectable 0.25, 2 and 16 Kbps) S-Band Ranging S-Band Tlm Link ( 2Kbps) Deep Space Network Communications Services for Launch (TDRS, ESA) Space Telescope Science Institute Science & Operations Center NASA Integrated Services Network GSFC Flight Dynamics Facility

  7. French Guiana • JWST is designed for launch on an Ariane V launch vehicle with a 5 m diameter fairing • Launch from Kourou Launch Center (French Guiana) with direct transfer to L2 point • Payload launched at ambient temperature with on orbit cooling to 50 K via passive thermal radiators • JWST payload: 6330 kg Ariane 5 Launch Vehicle Ariane 5 ECA

  8. JWST Master Schedule

  9. Project Status • General: • All observatory components have successfully completed their preliminary design reviews • ISIM CDR held in March • All science instruments have successfully completed their critical design reviews • Optical Telescope Element (OTE) CDR held last October • Sunshield CDR scheduled for January 2010 • Launch Readiness Date is June 2014 and the Mission Critical Design Review is in April 2010 • Observatory: • Completed the spacecraft bus PDR • Completed the JWST full scale core test • Completed the 1/3 Scale Sunshield testing • Optical Telescope Element: • Backplane: • Bonding of flight and pathfinder OTE Primary Mirror Backplane Support Structures (PMBSS) continues • Center section of the pathfinder completed bonding in December • Completed the Flight Backplane CDR 10

  10. Full Scale Core Test Hardware Core Thermal Test Focus Area Optical Telescope Element Sun Shield Spacecraft Bus CORE TEST thermal facsimile Counterbalance Weights Lift Sling FLIGHT Observatory Top Weldment PTR Radiators Diagonal Shields Center Backplane IEC Backplane Support Frame (BSF) Stray Light Bib Cable Radiator Decagon Test Membrane Deep Space Edge Radiator (DSER) Panels SS Support Frame Membrane Tensioning System Base Weldment Bus Simulator

  11. Core Test Article Testing is Complete Core Test integration complete OTE/SC assemblies mated GSFC radiometers received and installed He shroud installed, leak checks completed MLI closeouts complete Instrumentation installation and checkout complete Cool down started on April 17th Competed testing on May 26th Data analysis is complete Core Test Article Installation on Chamber Lid He Shroud Installation 12

  12. 1/3 Scale Sunshield completed testing in December

  13. Telescope Pathfinder and Flight structure at ATK

  14. Primary Mirror Segment Status A2, A4 and B3 during Integration for Cryo Test #2 in the XRCF, August, 2009 18 Flight PMSAs (6 A, 6 B, and 6 C segments) are at various stages of completion • All segments have completed the surface grinding processes at Tinsley • All but 5 segments have completed the rough polish process at Tinsley • 16 flight mirrors have been shipped to Ball from Tinsley for configuration changes, assembly integration and testing • 4 flight mirrors have been at the XRCF for Cryo Deformation Testing • Next Cryo Deformation test with 5 flight and the completely polished ETU mirrors is scheduled to start in early January • A1 is the first flight mirror in Cryo Null Polishing, now at Tinsley

  15. Mirror Processing at Tinsley EDU preparing for final polish run EDU in Optical Test C4 in Flipping Fixture TM in Optical Test

  16. A2, A4 and C3 PMSA’s at the MSFC XRCF

  17. EDU PMSA Completed Final Polishing at Tinsley!

  18. EDU PMSA in it’s Shipping Container

  19. Status of Secondary, Tertiary and Fine Steering Mirrors EDU SM TM FSM • Secondary Mirrors • EDU SM is in final testing at BATC and is scheduled for delivery as a pathfinder in March 2010 • Flight SM is in initial rough polishing at Tinsley, pre-cryo testing • Tertiary Mirror • Flight TM has completed cryo and integration deformation testing at BATC • Flight TM has begun Cryo Null Polishing at Tinsley • Fine Steering Mirror • Flight FSM has successfully completed cryo deformation testing at BATC; the null figure polishing target map is being developed • Cryo Null Polishing of the Flight FSM is scheduled to begin next at Tinsley

  20. Secondary Mirror (SM) in cryo testing at Ball

  21. Mirror Status at Tinsley PathfinderEDUFlightFlight TM1 EDU B2 C7 C1 C6 FSM B8 B3 A1 SM1 A6 A2 C5 C2 SM2 A5 A3 B7 A4 B5 C4 C3 As of 11/30/09 B6

  22. Mirror coating will start at QCI this year • JWST Dedicated Coating Chamber • Chamber and coating qualification on schedule to support flight coating • FSM and TMA will be coated in Feb 2010 • PMSA EDU will be coated in Apr 2010 Coating Chamber Final Integration Coating Chamber Installed GSE Mirror Support in Final Steps of Integration and Test

  23. Sunshield IVA Deployment Testing Kapton Spring Under Load

  24. Stored Sunshield IVA with the OTE Simulator

  25. Program Status and Recent Progress (Continued) • Ground System: • Thirty-two Common Command and Telemetry Systems (CCTSs) have been deployed around the world to support ISIM, science instrument and spacecraft flight software development and integration and test activities • The JWST Certification Facility has been established to test and certify operations products (command procedures, onboard scripts, telemetry monitors, etc) for use before testing against engineering models and flight hardware • The Ka band upgrades required to support JWST L&EO and normal operations have been completed at the DSN Canberra and Goldstone sites; the Madrid site has been upgraded and is currently undergoing testing 26

  26. Program Status and Recent Progress (Continued) • Ground Segment: • Science instrument teams around the world using their SITS and SIDU systems

  27. Program Status and Recent Progress (Continued) • Ground Segment: • Observatory I&T Control Room at NGAS

  28. Program Status and Recent Progress (Continued) • Ground Segment: • JWST Certification Facility

  29. Integrated Science Instrument Module (ISIM) • Successfully completed ISIM Level CDR in March • ISIM structure delivered to the GSFC in August • ISIM Command and Data Handling (IC&DH) unit and Remote Services Unit (IRSU) making good progress • Instruments: • MIRI • MIRI Verification Model (VM) completed it’s second cryo test • Selected flight and spare detectors and built into Focal Plane Module’s (FPM’s) • Instrument shield (for cryo cooler) concept baselined • Flight Model integration underway • NIRSpec • Selection of flight detectors agreed to by NASA & ESA • Development Model (DM) cryo testing is complete; Successful Pre Ship Review held • Flight Microshutter Array and Control Electronics in final testing • Flight Model (FM) integration underway • NIRCam • Selected flight detectors for NIRCam • Build up of the NIRCam Engineering Test Unit (ETU) well underway • Completed the Triplet bonded mount CDR and started bonding the brass board lenses • FGS • FGS flight detectors (including the spare) have been selected • ETU integration is complete; environmental testing is underway • Flight Model integration underway Program Status and Recent Progress (Continued)

  30. JWST Instrument Engineering, Verification and Development Models NIRCam ETU undergoing I&T NIRSpec DM testing is Complete! FGS EM integration is complete MIRI VM testing is complete! 31

  31. NIRSpec Flight Model started Integration

  32. NIRCamZnSe & BaFl Brass Board Optics successfully bonded in new mounts!

  33. Flight ISIM Structure in the SSDIF

  34. ISIM Kinematic Mount Installation

  35. ISIM & OSIM Hardware in the SSDIF ISIM Structure HST VEST Equipment Support and Mobility for OSIM registration and Integration (SAMORAI). OSIM optical bench is mounted in SAMORAI Foreground: theodolites and metrology equipmentCenter-Left: OSIM optical components (wrapped) Background: ISIM Structure

  36. SES Shroud in GSFC Bldg 10 for ISIM Testing

  37. MGSE Installed in SES for ISIM Structure Cryotesting He Shroud He Shroud SES UG ITP ITP Fabreeka Isolators UG Flexures GIS Cryoset Test Configuration (some minor details not correct) Fabreeka Isolators

  38. Major Near Term Milestones • Major near term reviews, tests and deliveries: • Sunshield CDR scheduled for January 2010 • Start ISIM Structure cryoset test January 2010 • MIRI Structural Thermal Model delivery to GSFC in February 2010 • NIRSpec Engineering Model delivery to GSFC in February 2010 • FGS Engineering Model delivery to GSFC in March 2010 • Flight NIRSpec Micro Shutter Subsystem delivery to ESA in March 2010 • MIRI flight Focal Plane System (FPS) delivery to RAL in March 2010 • NIRSpec flight Focal Plane System (FPS) delivery to ESA in March 2010 • NIRCam Engineering Model delivery to GSFC in April 2010 • Mission Critical Design Review in April 2010 • IRSU Flight Model delivery in May 2010 • ISIM Flight Structure delivery to I&T in August 2010 • ISIM Electronics Compartment Flight Model delivery in August 2010

  39. Project Summary • Successfully passed our Confirmation Review the Summer of 2008 • Launch Readiness Date is June 2014 • Engineering or Verification Models for the science instruments are complete or completing integration and test activities • They will be delivered to the GSFC over the next several months • Integration of the flight instruments is underway • Continuing to make good progress on critical path items • Getting ready for our Mission CDR in April

  40. ISIM Under Construction IEC Shell in Fabrication IEC Prototype Baffles IRSU FLT Chassis ICDH ETU (Region 3) FGS ETU MIRI VM SM Hexapod NS Flight Integration Flight Structure Kinematic Mounts NIRCam ETU Bench NS FPA Heatstrap

  41. JWST Under Construction PM Flight Backplane Primary Mirror Segment Tertiary Mirror SMSS Pathfinder Strut Fine Steering Mirror ISIM Flight Bench SM Hexapod Mid-boom Test Secondary Mirror Segment IC&DH unit ETU Membrane mgmt Pathfinder membrane 42

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