askap update

ASKAP Update

David DeBoerASKAP Project Director26 May 2010

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

ASKAP System and Data Flow

NBN

Antenna

Show Movie

Site infrastructure

July 2010 | Jan 2011 | July 2011 | Jan 2012

Antennas 2-6First PAFs - BETA

Fibre

7-36MRO Infrastructure

MSF

Site Layout

Site Compound

Control Building

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.

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

Digital

VLBI

ASKAP & NZ VLBI of 1934-638

Normal LBA at 1.4 GHz LBA with NZ and ASKAP

Cen A

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

CSIRO

SST3 continuum image (zoomed)

CSIRO

SST3 continuum image