askap update
DESCRIPTION
ASKAP Update. David DeBoer ASKAP Project Director 26 May 2010. ASKAP Design Goals. High-dynamic range, wide field-of-view imaging Number of dishes36 (3-axis) Dish diameter 12 m Max baseline 6km Resolution30 Sensitivity65 m 2 /K Speed1.3x10 5 m 4 /K 2. deg 2 - PowerPoint PPT PresentationTRANSCRIPT
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ASKAP Update
David DeBoerASKAP Project Director26 May 2010
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High-dynamic range, wide field-of-view imagingNumber of dishes 36 (3-axis) Dish diameter 12 mMax baseline 6kmResolution 30 Sensitivity 65 m2/KSpeed 1.3x105 m4/K2.deg2
Observing frequency 700 – 1800 MHzField of View 30 deg2
Processed Bandwidth 300 MHzChannels 16kFocal Plane Phased Array 188 elements
+ Infrastructure for Murchison Radio Observatory (MRO)+ Support of other projects (MWA, EDGES, +)
ASKAP Design Goals
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ASKAP System and Data Flow
NBN
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Antenna
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Show Movie
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Site infrastructure
July 2010 | Jan 2011 | July 2011 | Jan 2012
Antennas 2-6First PAFs - BETA
Fibre
7-36MRO Infrastructure
MSF
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Site Layout
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Site Compound
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Control Building
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Phased Array Feed
• Additional testing on-going on 5x4 prototype at Marsfield.
• New prototype for Parkes July 2010• Much theoretical work on conducting surveys – good beam!
• First complete mechanical PAF going together now.
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Phased Array Feed
-5 0 5 10 15
-5
0
5
10
15
-5 0 5 10 15
-5
0
5
10
15
-4 -2 0 2 4
-4
-2
0
2
4
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Digital
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VLBI
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ASKAP & NZ VLBI of 1934-638
Normal LBA at 1.4 GHz LBA with NZ and ASKAP
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Cen A
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CSIRO
SST3 continuum image
• SKADS sky model• 6km configuration• +/- 4 hours• 128 2.53 MHz
channels• 20s integration• 32 PAF beams
separated by 0.5deg• 14.1 uJy/beam noise• AProjectWStack• No wplanes in
simulation or imaging• 10” resolution• Made possible by
pre-production system loaned by Intel
• Image equalised• May 25, 2010
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CSIRO
SST3 continuum image (zoomed)
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CSIRO
SST3 continuum image