stratospheric observatory for infrared astronomy deutsches sofia institut 18. feb. 2010 sssc th....

18. Feb. 2010 SSSC Th. Wegmann

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y Deutsches SOFIA Institut

DSI Activities

and

FIFI-LS

Thomas Wegmann, Thomas Keilig

Deutsches SOFIA InstitutUniversity of Stuttgart


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DSI Personnel in California

N.N. soon Deputy Director AmesJ. Wolf 01.11.04 Senior Scientist - DSI Representative AmesA. Reinacher 01.11.04 Engineer (Chopper) PalmdaleT. Keilig 01.04.05 Project Management PalmdaleM. Lentini 01.05.05 TA Mechanical Technician Palmdale M. Burgdorf 06.04.09 Scientist, German Instruments Ames U. Lampater 15.05.05 Engineer (TA Structure, Controls) Palmdale S. Schmid 01.08.05 Aeroacoustics / Aerodynamics Palmdale/StuttgartC. Engfer 09.11.09 Aeroacoustics / Aerodynamics PalmdaleK. Bosse 01.04.07 Senior Electrical Engineer Palmdale H. Jakob 01.04.07 Software Engineer / TA controls PalmdaleS. Beckmann 01.08.07 TA Electrical Technician PalmdaleR. Strecker 01.06.09 TA Technician, QA PalmdaleJ. Trendelkamp 01.08.09 TA Mechanical Technician PalmdaleS. Teufel 01.02.08 Engineer (Struc. Dynam., End-to-end sim.) PalmdaleN. Hanisch 28.01.08 Technician, Documentation, Logistics Stuttgart/Palmdale


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DSI Personnel in Stuttgart

Th. Wegmann 18.07.05 Managing Director DSI StuttgartN. Lampa 01.08.05 Assistant of the Management StuttgartD. Mehlert 16.01.06 EPO Program StuttgartC. Scorza de Appl 01.09.07 EPO Program StuttgartA. Krabbe 08.01.09 Professor Airborne Astronomy, Physics StuttgartJ. Wagner 01.04.09 Technical Director, Prof. Struc. Dynam. Stuttgart B. Klett 01.07.09 Secretary StuttgartN.N. soon Senior Scientist Stuttgart

E. Pfüller Fall 09 PhD Student, USRA AmesM. Wiedemann Fall 09 PhD Student, USRA Ames

Academic Exchange Program

DAOF Ames

Diplom stud. 2 3

Interns 4 110 Diplom Students & Internships

as of 15.02.10


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DSI DirectorA. Krabbe

Techn. Managing DirectorJ. Wagner

Managment AssistantN. Lampa

Admin. Managing DirectorT. Wegmann

SecretaryB. Klett

SOFIA Deputy DirectorTBD

ScienceJ. Wolf et al.

EngineeringT. Keilig

Structures & SystemsU. Lampater et al.

Electronics & SoftwareH. Jakob et al.

Quality AssuranceR. Strecker et al.

AerodynamicsS. Schmid

OpticsM. Burgdorf et al.

Document. & LogisticsN. Hanisch

Science CommunityN.N. et al.

EPOD. Mehlert et al.

USRA

DSI Structure

USRA/NASAPersonnel

University StuttgartIRS

Stuttgart

Palmdale

Mountain View

DLRA. Himmes et al.

NASASPO

DSI Partners


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Current & Past Major DSI Activities

Presentation

Thomas Keilig


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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


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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


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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


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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


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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


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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 2010 - Delivery of prototype planned for ~ June 2010 - 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


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• 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 2009

- 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


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•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


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EPO Activities @ DSI duringthe 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 16 - 18: > „Kepler days“ at State Observatory in Heidelberg (BW)- August: > presenting DSI IR Astro Kit @ 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


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Prepare for PO activities on SOFIA milestones during 2010+

- 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)


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Cornerstone Ceremony 13. Oktober 2009Completion May 2011

Baden-Württemberg State Aerospace Center


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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


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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 2010- N. Geis funded by DLR till 2011- W. Raab funded by DLR till 2011- 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 3rd party - Kaori Niskikida (Software development), UC Berkeley funded by USRA- Leslie Looney (co-I, advisor, documentation), UIUC


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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 2010- Identify show-stoppers (elevator, LHe transfer, crane) - Prepare for know-how transfer

FIFI-LS

Possible lab area for FIFI-LS in Stuttgart


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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


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stratospheric observatory for infrared astronomy deutsches sofia institut 18. feb. 2010 sssc th....

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wegmann dsi director

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