1. ASKAP Antenna David DeBoer ASKAP Project Director 06 May 2009

2. High-dynamic range, wide field-of-view imaging Number of dishes36 (3-axis) Opticsprime focus f/D 0.5 Dish diameter 12 m Surface< 1mm Pointing30  Max baseline 6km Sensitivity65 m 2 /K Speed1.3x10 5 m 4 /K 2. deg 2 Observing frequency700 – 1800 MHz Field of View30 deg 2 Processed Bandwidth300 MHz Channels16k Focal Plane Phased Array 188 elements + Infrastructure for new SKA-ready observatory Murchison Radio Observatory (MRO) + Support of other projects (MWA, PAPER, +) ASKAP Design Goals

3. Function of time High-dynamic range, wide field-of-view imaging Number of dishes36 (sky mount) Opticsprime focus f/D 0.5 Dish diameter 12 m Surface< 1mm Pointing30  Max baseline 6km Sensitivity65 m 2 /K Speed1.3x10 5 m 4 /K 2. deg 2 Observing frequency700 – 1800 MHz Field of View30 deg 2 Processed Bandwidth300 MHz Channels16k Focal Plane Phased Array 188 elements + Infrastructure for new SKA-ready observatory Murchison Radio Observatory (MRO) + Support of other projects (MWA, PAPER, +)

4. 1

5. 2 AU$9.9M design/delivery/commissioned (AU$270k/antenna)

6. 3

7. 4

8. 5

9. 6

10. 3 rd axis structure Slewing-ring bearing Single servo drive Cable wrap Encoder location Access

11. The Third Axis

12. 7

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16. Suppliers

17. Optics

19. Timeline BETA: Boolardy Engineering Test Array

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21. Antenna #1 under construction

22. SAPKAP

23. Credit: Swinburne

24. ASKAP Credit: Swinburne

25. Thank You cooling http://www.atnf.csiro.au/projects/askap/ http://www.ska.gov.au Credit: Swinburne