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

ASKAP Team 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 baseline8 km Frequency 700 – 1800 MHz FOV30 deg 2 Bandwidth300 MHz Resolution5 kHz Channels16k PAF10x10x2 Data rate~1TB/s/ant spectral line T sys 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)

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

CSIRO ASKAP: Australian SKA Pathfinder Boolardy WA Midwest – Boolardy

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

CSIRO ASKAP: Australian SKA Pathfinder CSIRO SKA R&D + ASKAP Funding INITIAL SKA R&D FUNDING $20.5 Million 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 ASKAP – Infrastructure Contract Opportunities for WA industry “on-the-ground” The observatory site will require Satellite (eventually, fibre) data connects to Geraldton & Perth Roads, fences, gates & signage Security and maintenance operations Accommodation, operations buildings (environmentally controlled) The ASKAP support facility Geraldton/Perth The main support base A major computing centre for The build and operations HQ Continued day-to-day support, visitor info etc. Concept design for SKA Visitor centre by Jan Utzon, 2006

CSIRO ASKAP: Australian SKA Pathfinder Survey Telescope ASKAP

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

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

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

CSIRO ASKAP: Australian SKA Pathfinder Murchison Radio Observatory (MRO) S26   E116  

CSIRO ASKAP: Australian SKA Pathfinder

The Long Road

CSIRO ASKAP: Australian SKA Pathfinder MRO

CSIRO ASKAP: Australian SKA Pathfinder MRO

CSIRO ASKAP: Australian SKA Pathfinder MRO

CSIRO ASKAP: Australian SKA Pathfinder MRO Protection Observatory grounds (120 km 2 ) 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 RALI

CSIRO ASKAP: Australian SKA Pathfinder RALI

CSIRO ASKAP: Australian SKA Pathfinder RALI

CSIRO ASKAP: Australian SKA Pathfinder RALI

CSIRO ASKAP: Australian SKA Pathfinder May 2007 Heritage Survey

CSIRO ASKAP: Australian SKA Pathfinder System Block Diagram

CSIRO ASKAP: Australian SKA Pathfinder 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 Antenna

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

CSIRO ASKAP: Australian SKA Pathfinder From ASKAP to SKA…. ASKAP – 1% Pathfinder SKA P1 – 10% Pathfinder SKA Number 12 m dishes Frequency Range 0.7 – 1.8 GHz0.3 – 10 GHz0.3 – 22 GHz Number of receivers 9,000200,000 1,000,000 Bandwidth0.3 GHz2 GHz4 GHz DSP Processing 30 Teraflop6,000 Teraflop200,000 Teraflop Computer Processing 2 Teraflop1,200 Teraflop24,000 Teraflop

CSIRO ASKAP: Australian SKA Pathfinder MRO cooling