ASKAP Antenna

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ASKAP Antenna

• David DeBoer
• ASKAP Project Director
• 06 May 2009

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ASKAP Design Goals
High-dynamic range, wide field-of-view
imaging Number of dishes 36 (3-axis) Optics p
rime focus f/D 0.5 Dish diameter 12
m Surface lt 1mm Pointing 30? Max baseline
6km Sensitivity 65 m2/K Speed 1.3x105
m4/K2.deg2 Observing frequency 700 1800
MHz Field of View 30 deg2 Processed
Bandwidth 300 MHz Channels 16k Focal Plane
Phased Array 188 elements Infrastructure for
new SKA-ready observatory Murchison Radio
Observatory (MRO) Support of other projects
(MWA, PAPER, )
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ASKAP Design Goals
High-dynamic range, wide field-of-view
imaging Number of dishes 36 (sky
mount) Optics prime focus f/D 0.5 Dish
diameter 12 m Surface lt 1mm Pointing 30
? Max baseline 6km Sensitivity 65
m2/K Speed 1.3x105 m4/K2.deg2 Observing
frequency 700 1800 MHz Field of View 30
deg2 Processed Bandwidth 300 MHz Channels 16k F
ocal Plane Phased Array 188 elements
Infrastructure for new SKA-ready observatory
Murchison Radio Observatory (MRO) Support of
other projects (MWA, PAPER, )
Function of time
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1
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2
AU9.9M design/delivery/commissioned
(AU270k/antenna)
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3
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4
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5
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6
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3rd axis structure

• Slewing-ring bearing
• Single servo drive
• Cable wrap
• Encoder location
• Access

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The Third Axis
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7
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Suppliers
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Optics
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Optics
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Timeline
BETA Boolardy Engineering Test Array
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Antenna 1 under construction
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SAPKAP
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Credit Swinburne
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ASKAP
Credit Swinburne
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Thank You
Credit Swinburne
http//www.atnf.csiro.au/projects/askap/ http//ww
w.ska.gov.au