Download The One Hectare Telescope

The One Hectare Telescope
Douglas Bock
Radio Astronomy Laboratory, UC Berkeley
February 29, 2000
SKA US Consortium meeting - Douglas Bock
The One Hectare Telescope (1hT)
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Scope/Specifications
Basic system design
Hardware prototyping →
Prototype Test Array
Software/signal processing development →
Rapid Prototype Array
Schedule
February 29, 2000
SKA US Consortium meeting - Douglas Bock
The One Hectare Telescope (1hT)
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Joint project of SETI Institute and
UC Berkeley RAL
~500 elements, each 5 m in diameter
1 ha effective area (170 m2/K)
0.5-11 GHz instantaneously
Multiple simultaneous beams
Field of view 4 degrees at 1 GHz
Inbuilt RFI mitigation
Located at Hat Creek, California
February 29, 2000
SKA US Consortium meeting - Douglas Bock
February 29, 2000
SKA US Consortium meeting - Douglas Bock
February 29, 2000
SKA US Consortium meeting - Douglas Bock
February 29, 2000
SKA US Consortium meeting - Douglas Bock
February 29, 2000
SKA US Consortium meeting - Douglas Bock
Hardware Development
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Novel feed design
Mount/antenna development
Wideband, high-performance InP LNAs
Cheap and reliable 80 K cryogenics
February 29, 2000
SKA US Consortium meeting - Douglas Bock
The Rapid Prototype Array
Back-end prototype for the 1hT
Develop:
• Methods to deal with RFI
• Beam-forming algorithms
• Calibration techniques with GPS
• Control software and hardware
February 29, 2000
SKA US Consortium meeting - Douglas Bock
RPA specifications
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Seven 3.6-m dishes
Irregular hexagonal configuration
Dual polarization receivers
Band includes GPS, Iridium, HI
10 MHz instantaneous bandwidth digitized at
8 bits
Remote operation
February 29, 2000
SKA US Consortium meeting - Douglas Bock
February 29, 2000
SKA US Consortium meeting - Douglas Bock
February 29, 2000
SKA US Consortium meeting - Douglas Bock
February 29, 2000
SKA US Consortium meeting - Douglas Bock
February 29, 2000
SKA US Consortium meeting - Douglas Bock
February 29, 2000
SKA US Consortium meeting - Douglas Bock
February 29, 2000
SKA US Consortium meeting - Douglas Bock
February 29, 2000
SKA US Consortium meeting - Douglas Bock
RPA Flexibility
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8-12 bit sampling
25-50 MS/s
RAIDs for more data
A new site for less (more?) RFI
February 29, 2000
SKA US Consortium meeting - Douglas Bock
1hT Project Schedule
2000
Rapid Prototype Array operational
Preliminary design review
2001
2002
Critical design review
Prototype Test Array operational
2003
2004
2005
February 29, 2000
Decision to proceed to construction phase
First light, partial telescope
Routine observations begin
SKA US Consortium meeting - Douglas Bock