Transition from SKADS to PrepSKA
Richard SchilizziLisbon, 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 managementWP2 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 DesignSystem DesignSKA mid + low SKA mid + low
construction and construction and commissioningcommissioning
SKA-high SKA-high ConstructionConstruction
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 ScienceEarly Science SKA SKA mid+lowmid+low
SKA-mid+lowSKA-mid+lowCompleteComplete
SKA SKA PathfindersPathfindersCompleteComplete
System System design design SKA-hiSKA-hi
Pathfinder science
Phase 1 complete
Concept Concept DesignDesign
SiteSelect
Concept design for Concept design for SKA-highSKA-high
Detailed Detailed Design/Phase 1 Design/Phase 1
construction and construction and commissioningcommissioning
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
Yea
rs
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 gapsNote: 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
Dish fab group 1DRAO
Dish fab group 2
TDP
Dish fab group 3
NRF
Feed group 1
TDP
Feed group 2
NRF
Feed group 3CSIRO
Mount group 1
TDP
Mount group 2DRAO?
Dish verification program
VLA?Antenna
optics group 1
NRF
Antenna optics
group 2TDP
Lead InstituitionTDP
1. Optimized single-pixel feed antenna system
1.2 Antenna
Antenna optics Group 2Dish fab Group 2Mount Groups 1,2
1.3 Focus sub-system(inc cryogenics)
Feed Groups 1,2LNA/receiver Group 1
1.1 Project management
Lead Institution
1.4 System integration
Lead Institution
1.5 Cost analysis and report
Lead Institution
LNA/receiver Group 2ASTRON
UMAN,UOXF, MPIfR, OBSPAR,
IT
LNA/receiver Group 1
TDP
UCAL, CSIRO
Lead InstituitionTDP
2. Alt-Az mounted antennaWBSPF/PAF
2.2 Antenna
Antenna optics Group 2Dish fab Groups 2,3Mount Groups 1,2
2.3 Focus sub-system(inc cryogenics)
Feed Groups 1,2,3LNA/receiver Group 1,2
2.1 Project management
Lead Institution
2.4 System integration
Lead Institution
2.5 Cost analysis and report
Lead Institution
Lead InstituitionCSIRO
3. Sky-mount antennaWBSPF/PAF
3.2 Antenna
Antenna optics Group 1Dish fab Group 1,3Mount Groups 1,2
3.3 Focus sub-system(inc cryogenics)
Feed Groups 1,2,3LNA/receiver Group 1,2
3.1 Project management
Lead Institution
3.4 System integration
Lead Institution
3.5 Cost analysis and report
Lead Institution
Lead InstituitionNRF
4. Offset optics antennaWBSPF/PAF
4.2 Antenna
Antenna optics Group 1Dish fab Groups 1,3Mount Groups 1,2
4.3 Focus sub-system(inc cryogenics)
Feed Groups 1,2,3LNA/receiver Group 1,2
4.1 Project management
Lead Institution
4.4 System integration
Lead Institution
4.5 Cost analysis and report
Lead Institution
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 TeamProject Engineer Peter DewdneySystem Engineer Kobus CloeteDomain Specialist Receptors Neil RoddisDomain Specialist Signal Transport Roshene McCoolDomain Specialist Computing & Duncan Hall
SoftwareDomain Specialist Signal Processing advertisedSite Engineer Rob MillenaarProject Management Officer interviews 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, 10-14 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 WP2 9 6 R PP 12
Composite volume, SKA life cycle study, operations plan and support model – Y3 report
WP2 10 89 R PP 36
Composite volume, SKA cost and performance optimization, manufacturing studies and technical documentation – Y3 report
WP2 9 133 R PP 36
SKA system design – interim report WP2 9 47 R PP 36
Sub-system hardware specifications WP2 9 12 R PU 15
Report on sub-system integration and evaluation WP2 9 24 R PP 27
Y3 Report on IVS specification WP2 9 33 R PP 36
Y3 prototype IVS hardware WP2 9 48 P PP 36
Y3 Report on IVS integration and test WP2 9 42 R PP 36
Y3 report detailing performance and cost data for high dynamic range ASKAP antenna
WP2 15 10 R CO 36
Y3 report detailing performance and cost data for composite MeerKat antenna
WP2 7 10 R CO 36
Y3 report detailing performance and cost data for carbon fibre antenna
WP2 8 10 R CO 36
Y3 report detailing performance and cost data for TDP antenna WP2 12 10 R CO 36