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Australian SKA Pathfinder (ASKAP)

Australian SKA Pathfinder (ASKAP). David R DeBoer ATNF Assistant Director ASKAP Theme Leader 06 November 2007. Australian SKA Pathfinder (ASKAP). International collaboration led by Australia with Canadian, South African and Dutch partners. AUD$100M + in-kind Dishes ~45 ~12-meter

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Australian SKA Pathfinder (ASKAP)

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  1. Australian SKA Pathfinder (ASKAP) David R DeBoer ATNF Assistant Director ASKAP Theme Leader 06 November 2007

  2. Australian SKA Pathfinder (ASKAP) International collaboration led by Australia with Canadian, South African and Dutch partners. AUD$100M + in-kind Dishes ~45 ~12-meter Max baseline 8 km Frequency 700 – 1800 MHz FOV 30 deg2 Bandwidth 300 MHz Resolution 5 kHz Channels 16k PAF 10x10x2 Data rate ~1TB/s/ant spectral line Tsys goal 35 K Station in NSW ~2500km baseline + VLBI Australian SKA Coordination Committee (ASCC) is new “peak body” for SKA in Australia. Senior members from Commonwealth and Western Australia. Australian SKA Pathfinder (ASKAP) ASKAP Team

  3. SKA Timeline Science case published PrepSKA preparatory phase activities Sites short-listed ‘1% SKA’ Science ‘10% SKA’ Science SKA Complete 98 2002 0607 08 09 10 11 1213 14 18 22 2000 PrepSKA system design Concept design Pathfinder suite construction Phase 1 construction 10% SKA Full array construction 100% SKA External review of top-level design Feasibility studies and concept demonstration Reference Design selected Initial specs for Phase 1 and full SKA Detailed Phase 1 design & top-level SKA design CSIRO ASKAP: Australian SKA Pathfinder

  4. WA Midwest – Boolardy Boolardy CSIRO ASKAP: Australian SKA Pathfinder

  5. WA Midwest gazetted towns: 0 population: “up to 160” MRO CSIRO ASKAP: Australian SKA Pathfinder

  6. CSIRO SKA R&D + ASKAP Funding 2001-2007 INITIAL SKA R&D FUNDING $20.5 Million 2007+ CSIRO & Aus Government funding for ASKAP 07-08 $16M 08-09 $30M 09-10 $33M 10-11 $22M >A$100 Million + In-kind from Canadian and South African partners + DEST funding of ~$5 Million to manage the full ‘SKA bid’ CSIRO ASKAP: Australian SKA Pathfinder

  7. Survey Telescope ASKAP CSIRO ASKAP: Australian SKA Pathfinder

  8. ASKAP Beamforming Correlator/ Station BF CSIRO ASKAP: Australian SKA Pathfinder

  9. ASKAP Beamforming Correlator/ Station BF CSIRO ASKAP: Australian SKA Pathfinder

  10. Key problems: data flow, processing, and storage CSIRO ASKAP: Australian SKA Pathfinder

  11. Murchison Radio Observatory (MRO)S26 42 15 E116 39 32  CSIRO ASKAP: Australian SKA Pathfinder

  12. CSIRO ASKAP: Australian SKA Pathfinder

  13. The Long Road CSIRO ASKAP: Australian SKA Pathfinder

  14. MRO CSIRO ASKAP: Australian SKA Pathfinder

  15. MRO CSIRO ASKAP: Australian SKA Pathfinder

  16. MRO CSIRO ASKAP: Australian SKA Pathfinder

  17. MRO Protection • Observatory grounds (120 km2) • Full/self-control • EMC control region (30 km radius) • No inhabitants • Control, but negotiation with pastoral activities • Radio Astronomy Park (70 km radius) • “Technology Park” legislation for development control • Coordinated control • ACMA RALI • (Aus Communication & Media Authority Radiocommunications Assignment and Licencing Instruction) • “FCC RQZ” protection (various radii) • Section 19 • Large region limiting mining activity (no new mines in the region) CSIRO ASKAP: Australian SKA Pathfinder

  18. RALI CSIRO ASKAP: Australian SKA Pathfinder

  19. RALI CSIRO ASKAP: Australian SKA Pathfinder

  20. RALI CSIRO ASKAP: Australian SKA Pathfinder

  21. RALI CSIRO ASKAP: Australian SKA Pathfinder

  22. May 2007 Heritage Survey CSIRO ASKAP: Australian SKA Pathfinder

  23. System Block Diagram CSIRO ASKAP: Australian SKA Pathfinder

  24. Antenna Imaging dynamic range & pipeline processing implies fixed parallactic angle & stable field “Sky mount” prime focus with upgrade paths Composite (DRAO) or metal (industry) CSIRO ASKAP: Australian SKA Pathfinder

  25. Antenna CSIRO ASKAP: Australian SKA Pathfinder

  26. Smart Feed - Phased Array Feed (PAF) Phased array in focal plane of antenna Linear-connected “checkerboard” feed looks promising Roughly 10x10x2 elements and ~1-meter NTD testing Testbed antenna at Parkes Drives antenna design CSIRO ASKAP: Australian SKA Pathfinder

  27. Receivers/Data Transport High-Z, differential low-noise amplifiers ~3:1 Up-conversion Analog fiber to BF Receiver-on-a-chip CSIRO ASKAP: Australian SKA Pathfinder

  28. Beamformer/Correlator/Station beamforming ~30 1 sq. deg. beams Flexible weights to optimize All beams to give ~30 sq deg at 1400 MHz PAF Beamformer Correlator/station beamformer CSIRO ASKAP: Australian SKA Pathfinder

  29. From ASKAP to SKA…. CSIRO ASKAP: Australian SKA Pathfinder

  30. cooling MRO - 02 8314 9699 http://www.atnf.csiro.au/projects/askap/ http://www.ska.gov.au CSIRO ASKAP: Australian SKA Pathfinder

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