Transition from SKADS to PrepSKA Richard Schilizzi Lisbon, 3 October 2008

PrepSKA deliverables Produce a deployment plan for the full SKA and a detailed costed system design for Phase 1 Integrate all of the activities, reports, and outputs of the various working groups to form an SKA implementation plan including a build plan proposal for construction funding in 2012

PrepSKA Work Program WP1 PrepSKA management WP2 Costed telescope design WP3 Further site characterization in Australia and Southern Africa WP4 Governance WP5 Procurement and involvement of industry WP6 Options for funding WP7 Impact on broad government priorities

PrepSKA

06 |08 |10 |12 |14 |16 |18 |20 |22 |24 | System Design SKA mid + low construction and commissioning SKA-high Construction Sites short-listed EC-FP7: PrepSKA System design Funding Governance Site Selection Preliminary SKA specs External Engineering Review of design Reference Design selected Design Studies /Pathfinder Suite Construction Early Science SKA mid+low SKA-mid+lowComplete SKA Pathfinders Complete System design SKA-hi Pathfinder science Phase 1 complete Concept Design Site Select Concept design for SKA-high Detailed Design/Phase 1 construction and commissioning SKA timeline Full science operations SKA mid+low

WP2 deliverables (Peter Dewdney “Guiding Principles, Activities and Targets for WP2”) Technology selection System Design –including operational – construction tradeoffs Science Performance vs Reference Science Mission Total cost estimate for Baseline Design (incl. contingency) Risk assessment Design and deployment plan Top-level build schedule Upgrade paths

Science Requirements Engineering Design & Cost The Job of WP2 Readiness Assessments Eng. Simulations Prototypes Pathfinders Technical R&D Four Years Case Studies SKACost National PrepSKA SKADS TDP LOFAR ASKAP KAT7 ATA EVLA MWA eMERLIN eEVN Path2SKA

Approach Focus WP2 Description of Work in a different way –Move from 40 technology development tasks, including an ill-defined ‘IVS’ to assembly and verification of large SKA sub-systems –identify and fill gaps Note: Need an integrated systems approach at sub-unit level, eg Feed dish design; LNA feed design Dish Verification Program PAF Verification Program AA Verification Program Signal transport Verification Program …..

Original WP2 technology matrix

Dish Verification Program

WP2 approach Required parameter space can be covered with a small no. of models Contributing institutions contribute designs to several models Verification Programs will need to include a build and test phase, on the way to deriving the cost by 2012Q1 (end of PrepSKA) –VPs are self-evaluating SKA Design Studies and Pathfinders provide the R&D basis for the VPs –Need to target those aspects that map into the SKA –Documentation essential Effectively evaluate the feasibility of implementations outlined in Memo 100

Representative implementations: Phase 1

Representative implementations: Phase 2

SPDO in the PrepSKA era

SPDO Engineering Team Project Engineer Peter Dewdney System EngineerKobus Cloete Domain Specialist Receptors Neil Roddis Domain Specialist Signal TransportRoshene McCool Domain Specialist Computing &Duncan Hall Software Domain Specialist Signal Processingadvertised Site EngineerRob Millenaar Project Management Officerinterviews next week

Liaison Engineers Senior engineering managers Roles Lead design teams for which the Lead Institution has assumed responsibility Serve as communication person for relations between SPDO and Lead Institution

WP2 Schedule SPDO staffing, familiarisation and training (ongoing) Appoint liaison engineers (ongoing) WP2 Kickoff meeting, Nov (Deliverable #1) MoAs with organisations/lead institutions (ongoing) Review Reference Science Mission, Dec08 State of SKA technology –call for documentation (Jan 09) Review by International Engineering Advisory Committee, Mar 09 (Deliverable #2)

WP2 deliverables SKA operations concept WP296RPP12 Composite volume, SKA life cycle study, operations plan and support model – Y3 report WP21089RPP36 Composite volume, SKA cost and performance optimization, manufacturing studies and technical documentation – Y3 report WP29133RPP36 SKA system design – interim report WP2947RPP36 Sub-system hardware specifications WP2912RPU15 Report on sub-system integration and evaluation WP2924RPP27 Y3 Report on IVS specification WP2933RPP36 Y3 prototype IVS hardware WP2948PPP36 Y3 Report on IVS integration and test WP2942RPP36 Y3 report detailing performance and cost data for high dynamic range ASKAP antenna WP21510RCO36 Y3 report detailing performance and cost data for composite MeerKat antenna WP2710RCO36 Y3 report detailing performance and cost data for carbon fibre antenna WP2810RCO36 Y3 report detailing performance and cost data for TDP antenna WP21210RCO36