1. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC1 Technology Development Project Presentation TDP OverviewJim Cordes »Programmatics »International connections Project Manager’s ReportLynn Baker »Organization & Activities Antennas, Feeds and Receivers (AWG) »Jack Welch »Matt Fleming »German Cortes »Sandy Weinreb Calibration and Processing (CPG) »Athol Kemball

2. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC2 Technology Development Project NSF-funded 2007-2011 for $12M »Includes US contribution to the SPDO Complementary to and integrated with PrepSKA »EC-funded project 3+1 years, ~ same time frame as TDP Targets areas that bear strongly on cost and basic performance (A e, T sys, B, cross polarization, processing) Will deliver to the SKA project: »Technology options for LNSD array with broadband single-pixel feeds »Costing of reflectors+mounts vs. D and f max »Optical designs that include both SP + PAF options (decision tree) »An SKA-optimized antenna, outfitted with feeds/receivers »Calibration and processing technology for LNSD arrays »Cost-modeling information for project decisions

3. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC3 TDP Management TDP Project Office (Cornell) Project Director (JMC) Project Manager (Lynn Baker) Administrative assistance (D. Howe, J. Tarbell) Web-site maintenance (A. Brazier) TDP Advisory Committee Sarah Church, Phil Diamond, Paul Goldsmith, Peter Hall, John Weber Project Execution Plan (PEP) approved by the NSF/STOG Distributed effort organized at mid level by working groups: Antennas Working Group (Jack Welch/Matt Fleming) Calibration and Processing Group (Athol Kemball) Direct collaborations with Australia, Canada, South Africa via participation in the AWG or CPG TDP work packages integrated with the PrepSKA

4. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC4

5. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC5 Other TDP events/issues: PrepSKA Board Meeting (11 Apr ’08, Perth) Mapping TDP WBS to PrepSKA WPs (ongoing) Forthcoming talks: –URSI/Chicago Aug ’08: Baker, Cordes, Cortes, Kemball, Weinreb –400 Years of Astronomical Telescopes: Noordwijk, Netherlands, Sep ’08: Cordes talk on >1990 existing and planned radio telescopes 2007/2008 SPDO dues SKA Research Associate Intellectual Property and ITAR Phased-array feed development in U.S.

6. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC6 Work Breakdown Structure for the TDP 1.Antennas, Feeds and Receivers 2.Calibration and Processing 3.Cost Function Analysis 4.SKA Design Project 5.SKA Research Associateship 6.TDP Management 7.US SKA Consortium Participant Costs AWG CPG

7. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC7 TDP Participation (as defined to date) Direct TDP Funding: Caltech Cornell/NAIC MIT/Haystack SETI Institute U.C. Berkeley U. Illinois U. Wisconsin Management: Cornell/NAIC US SKA Consortium In-kind participation: JPL NRL NRAO U. New Mexico ATNF DRAO U. Calgary South Africa

8. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC8 TDP Antennas Working Group Jack Welch (UCB) Chair Matt Fleming (Minex/SI) German Cortes (Cornell) Dean Chalmers (DRAO) Bill Imbriale (JPL) Roger Norrod (NRAO) Roger Schultz (Schultz Associates) Sandy Weinreb (Caltech) External: –Dave de Boer (ATNF/ASKAP) –Peter Dewdney (DRAO/SPDO) –Justin Jonas (MeerKAT) or proxy

9. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC9 AWG Goals: Define matrix of antenna types –Plan for assessing costs and narrowing down the list Inventory of antenna development taking place around the world –Plan for consolidating results of the development –Work not being done that needs to be done Cost curve: C(D, X) –What do we know now? –Where are the break points (now and after future development) –Plan for getting additional data points –Discount for large volume production? –Getting industry input (non-disclosure issues) TDP timeline for –Cost function analysis –Deliverable “SKA-TDP” antenna

10. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC10 Action Items from March 2008 AWG Meeting SF airport, 13-14 March, 23 participants incl. Australia (1), Canada (3), South Africa (3), UK (1) 1. develop timeline and plan for the fabrication study, going from FEA to non- hydroformed reflector to hydroformed if possible 2. Identify test-range possibilities: - Roger Norrod to check on the Green Bank an-echoic chamber and test range - also check on availability and suitability of ATNF, DRAO, JPL, NAIC 3. Identify a short list of strawman antenna cases (diameter, frequency range, reflector type) for German Cortes to investigation optical designs 4. Identify explicit collaboration with South Africa on their feed and reflector decisions 5. Develop a list of standard procedures and metrics for testing reflectors and mounts 6. Feeds: ditto

11. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC11 TDP Calibration and Processing Group Athol Kemball (UI, Chair) Geoff Bower (UCB) Jim Cordes (Cornell) Joe Lazio (NRL) Colin Lonsdale (MIT/Haystack) Steve Myers (NRAO) Joeren Stil (U. Calgary) Greg Taylor (UNM)

12. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC12 CPG Goals Identify and assess elements that drive costs Calibration algorithms Imaging, spectroscopy and time-domain processing Scalability and high-performance computing Interact with SPDO, CDIT and Task Force on C&I on SKA design issues, including Signal transport RFI mitigation Survey requirements/design Data management

13. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC13 Antenna manufacturing: costs vs. D, X=max freq. Design and delivery of an optimized SKA antenna Single-pixel broadband feeds and receivers Consideration of multi-pixel systems in antenna optics Solutions to array issues Data transport and correlation Calibration and imaging RFI mitigation Radar capability Synoptic survey capability Cost function analysis for the SKA: C(X,D,FoV) Identify break points vs. frequency, etc. for costing Provide input to international SKA project decisions Roadmap for full SKA construction and Phase I design Coordinated with the International SKA Project Office Global collaboration organized under the FP7 PREPSKA project

14. 22 May 2008 Jim Cordes US SKA Consortium Meeting Washington, DC14 Next Activities Meetings of the AWG and CPG to define work plans Preparation of the Project Execution Plan To be submitted to the NSF 2008 January (Draft 2007 Dec`1) Includes detailed WBS defined by TDP Project Office + subproject leaders Advertisement of SKA Fellowship Preparation of Decadal Survey Proposal for the full SKA (later presentation by J. Lazio et al.) Reports to the NSF/STOG Definition of joint work plan TDP+PrepSKA with SKA Program Development Office (SPDO)