Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann DSI Activities and FIFI-LS Thomas Wegmann, Thomas Keilig Deutsches SOFIA Institut University of Stuttgart

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann DSI Personnel in California N.N.soonDeputy DirectorAmes J. Wolf Senior Scientist - DSI RepresentativeAmes A. Reinacher Engineer (Chopper)Palmdale T. Keilig Project ManagementPalmdale M. Lentini TA Mechanical TechnicianPalmdale M. Burgdorf Scientist, German InstrumentsAmes U. Lampater Engineer (TA Structure, Controls)Palmdale S. Schmid Aeroacoustics / AerodynamicsPalmdale/Stuttgart C. Engfer Aeroacoustics / AerodynamicsPalmdale K. Bosse Senior Electrical EngineerPalmdale H. Jakob Software Engineer / TA controlsPalmdale S. Beckmann TA Electrical TechnicianPalmdale R. Strecker TA Technician, QAPalmdale J. Trendelkamp TA Mechanical TechnicianPalmdale S. Teufel Engineer (Struc. Dynam., End-to-end sim.)Palmdale N. Hanisch Technician, Documentation, Logistics Stuttgart/Palmdale

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann DSI Personnel in Stuttgart Th. Wegmann Managing Director DSIStuttgart N. Lampa Assistant of the ManagementStuttgart D. Mehlert EPO Program Stuttgart C. Scorza de Appl EPO ProgramStuttgart A. Krabbe Professor Airborne Astronomy, PhysicsStuttgart J. Wagner Technical Director, Prof. Struc. Dynam.Stuttgart B. Klett SecretaryStuttgart N.N.soonSenior ScientistStuttgart E. PfüllerFall 09PhD Student, USRAAmes M. WiedemannFall 09PhD Student, USRAAmes Academic Exchange Program DAOFAmes Diplom stud. 2 3 Interns Diplom Students & Internships as of

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann DSI Director A. Krabbe Techn. Managing Director J. Wagner Managment Assistant N. Lampa Admin. Managing Director T. Wegmann Secretary B. Klett SOFIA Deputy Director TBD Science J. Wolf et al. Engineering T. Keilig Structures & Systems U. Lampater et al. Electronics & Software H. Jakob et al. Quality Assurance R. Strecker et al. Aerodynamics S. Schmid Optics M. Burgdorf et al. Document. & Logistics N. Hanisch Science Community N.N. et al. EPO D. Mehlert et al. USRA DSI Structure USRA/NASA Personnel University Stuttgart IRS Stuttgart Palmdale Mountain View DLR A. Himmes et al. NASA SPO DSI Partners

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann Current & Past Major DSI Activities Presentation Thomas Keilig

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann Current & Past Major DSI Activities cont’d  US/D cross-cultural Integrated DAOF TA-Team Workshop  2 day event in Monterey  26 participants  was held on Tuesday – Wednesday, Feb. 16 – 17.  German Science Community Outreach  Christof Iserlohe left the DSI  N.N. POC for German observers  Installation of the German observing time application and evaluation process  Installation of science community relevant websites

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann Documentation/Maintenance/Logistics Goal: Minimizing the downtime after failure of a telescope component (N. Hanisch) Status: the Maintenance Module should be ready in March - visit of NASA at erpwerk for reviewing the module The storage module is operational at DAOF

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann Current & Past Major DSI Activities cont’d  Second Gyro System for the SOFIA Telescope  Two Options were presented on the last SSSC-Meeting - Exchange of the gyro box - parallel system ( hot standby)  It was decided to follow the first option: exchange of the gyro box  A set of fiber optical gyros (FOG 200) are under procurement from IXSEA The performance of these FOG200 gyros are equal or better the those of the FOG 180 gyros currently used.  Further activiy: a modified gyrobox must be designed and built

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann Current & Past Major DSI Activities cont’d  Further spare parts in procurement  Power Control Panel for the SOFIA PDU as Line Replaceable Unit (LRU)  Spare Camera Controller as Line Replaceable Unit (LRU)  Coarse Drive (CD-Serv) Unit  Balancing Drive (BD-Serv) Unit  Local Control Board / hand Held Panel (LCP / HHP)  Power Unit A2 (PUA2) and B (PUB) and C (PUC)  and others

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann  SOFIA Imager Upgrade  Replace current camera heads with Thompson CCD sensors of WFI, FFI and FPI by new camera heads with e2v CCD47-20 sensors

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann  SOFIA Imager Upgrade  New CCD47-20 sensors (flight hardware) have been purchased including thermo- electrical cooler packages  CCD47-20 sensors has been characterized in lab and on-sky measurements with test camera (Finger Lakes Instrumentation)  Prototype camera head (FPI) is currently built by KT/SST - Final optimization of mechanical/thermal design - Electronics is under development - Functional demonstration test (bench) planned for late March Delivery of prototype planned for ~ June subsequent tests by DSI at Ames (lab and on-sky with simulation optics for WFI, FFI & FPI)  Start of flight hardware phase expected ~ fall 2010  Software update for imager commanding, tracker system, MCCS in parallel (new: sub-frame readout, on-chip binning)  Plan to be ready to implement upgraded WFI, FFI & FPI in summer 2011 during segment 3 downtimes

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann SOFIA Fast Diagnostic Camera Replace FPI with a fast EM-CCD Camera for engineering flights to optically analyze the TA pointing stability (independent of HIPO or FORCAST), i.e. monitor star centroid location in focal plane with up to ~ 400 frames / sec ANDOR iXonEM DU-888 (BI) camera purchased and characterized (lab and on-sky, DSI telescope & Lick Observatory) Mounting plate for FPI flange built by KT First test at TA during line ops in September Mechanical and optical interfaces: alignment OK, focussing OK - Photometric sensitivity was measured: FDC ~ 3 x more sensitive than FPI, limited by DAOF sky background (EM gain not usable) - High frame rates tested: optical analysis of SM-chopper with 249 & 295 frames/sec, fine drive system analysis with up to 400 frames/sec, extra-focal star images to characterize atmosphere (seeing) Currently flight configuration of FDC is prepared for a first flight in summer 2010 (TA Characterization Flight #2): - Control computer in ATR box to replace FPI controller on TA, optical link to user station, cable routing at TA - simultaneous data acquisition with FORCAST using FORCAST trigger puls - addition of GPS time stamps

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann Telescope Assembly Characterization and First Light (TACFL) The main aim is to determine the pointing stability of the TA, which is probably the most crucial single issue for airborne observatories. It is also intended to use this opportunity for producing a first light image. A working group, led by DSI Ames personnel and with the collaboration of USRA, was brought into being on 1/21 with the task of writing a test plan and a more detailed list of procedures for this flight. A version of the test plan that is complete but not final yet was circulated on 2/5. The flight is expected to happen in mid-April and to fulfill the following tasks: - Inertial stability evaluation from observations of point sources with and without FFI and FPI tracking - Tuning of the Quasi-static Flexible Body Compensation and try-out of WFI tracking - Various cavity environment tests - Getting first light images with FORCAST Several of the tests under the previous bullet will be carried out with FORCAST: - Test targets must be bright enough for both FORCAST in fast read-out mode and the images to see - Coordination with the FORCAST team needed w.r.t. Preceding mini line-ops, parallel activities during the flight etc. - The first light targets will be extended sources that make beautiful pictures Planning of the activities with the telescope during the first flight characterization flight

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann EPO DSI during the International Year of Astronomy 2009 (IYA) More than > 30 nation wide EPO activities e.g.: - January 20: > National opening event in Berlin - February 12: > State of Baden-Württemberg (BW) opening event in Mannheim - March 20: > Ceremonial act of the Kepler society - March 16: > Open SOFIA exhibition in the Planetarium Stuttgart - May/Juli:> presenting SOFIA with hand-on experiments in Weil der Stadt during exhibition of Kepler Society - July :> „Kepler days“ at State Observatory in Heidelberg (BW) - August: > presenting DSI IR Astro IAU meeting in Sao Paulo - September: > Annual „Highlights of Physics“ by German physical society 2009 in Cologne on astronomy > Conference of the German „Astronomical Society“ in Potsdam > exhibition on „Science day“ at leisure ground in Rust - Oktober:> Exhibition on international book fair in Frankfurt >> Much more (touring exhibition, talks, presentations with hand-on experiments) in cooperation with several partners) >> Triggered a lot of activities that will continue 2010 an beyond e.g. incooperation of SOFIA exhibit in the „wandering“ exhibut „Augen im All“ by ESA in IR Astronomy & Herschel and Planck satellites

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann Prepare for PO activities on SOFIA milestones during NASA/DLR press release on: > first light > short science (as fixed in data right use agreement) – 1x FORCAST - First science with SOFIA at all plus FORCAST results - lead by NASA/FORCAST team - as soon as data available; lastest 1- 2 weeks after short science with FORCAST – 1x GREAT - First German science with SOFIA plus GREAT results - lead by DLR/GREAT - as soon as data available; lastest 1- 2 weeks after short science with GREAT >> Prepare background material (images, videos, podcasts, animations on short science targets and goals >> Continue the PR telecon (NASA-HQ,DFRC,ARC,DLR, USRA, DSI)

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann Cornerstone Ceremony 13. Oktober 2009 Completion May 2011 Baden-Württemberg State Aerospace Center

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann FIFI-LS Technical Status: - will be presented at the SITR - red channel ready for demonstration flights after Basic Science - blue channel in the works Issue: - MPE announced to terminate its engagement in FIFI-LS - Cannot be accomodated for at UC Berkeley - Transition to new place by fall 2010 Solution: - Goal: Make it a full facility instrument - DSI/IRS is interested to continue the FIFI-LS project Ongoing discussions with MPE, DLR, German Community and DSI/IRS Status: - High quality instrument - High scientific potential - EOOP Status - We want to keep FIFI-LS for SOFIA

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann Missing major items: - Final testing of blue grating drive (W. Raab) - blue grating drive electronics / controller (F. Fumi) - blue warm detector electronics (F. Fumi) - blue airworthy warm cables (F. Fumi) - final assembly of support structure (N. Geis) - Final assembly of optical guide camera housing & mechanics (N. Geis) - Airworthiness electronics docs (F. Fumi) - Instrument software completion (R. Klein) - Instrument software documentation (R. Klein) - Assembly of instrument mounting cart (Raab/Geis) MPE Team: - A. Poglitsch busy with PACS - F. Fumi (Electronics Eng.) retiring end of Feb N. Geis funded by DLR till W. Raab funded by DLR till R. Hönle Free Lancer FIFI-LS Other FIFI-LS Team members: - Randolf Klein (co-I, Project Scientist, Software lead, PI for EOOP), UC Berkeley, funded by USRA and 3 rd party - Kaori Niskikida (Software development), UC Berkeley funded by USRA - Leslie Looney (co-I, advisor, documentation), UIUC

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann Next steps: - Keep existing team together and at work - Complete FIFI-LS as much as possible at MPE - Bring in additional people from DSI & SMO - Find (additional) funds at Uni Stuttgart, DLR, SMO and NASA - Prepare a new lab at DSI, Stuttgart for fall Identify show-stoppers (elevator, LHe transfer, crane) - Prepare for know-how transfer FIFI-LS Possible lab area for FIFI-LS in Stuttgart

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann Open points: - Support by USRA / SMO / NASA to transition FIFI-LS as Facility Instrument - Use of FIFI-LS as PI-instrument before transitioning to SMO as Facility Instrument - Will FIFI-LS be ready for the anticipated demo-flights after Basic Science? - Will only the red channel or both channels be ready? - FIFI-LS

Stratospheric Observatory for Infrared Astronomy Deutsches SOFIA Institut 18. Feb SSSC Th. Wegmann