Imaging and Calibration Group

Minutes for meeting Tuesday, 10 Oct 2000 at 4:00pm EDT.

Date: 10 Oct 2000

Time: 4:00 pm EDT (2:00 pm Socorro, 1:00 pm Tucson)

Phone: (804)296-7082 (CV SoundStation Premier Conference phone).

Past ImCal minutes, etc on MMA Imaging and Calibration Division Page

"NSF is also pleased to be playing a leadership role in developing the international partnership for ALMA--the Atacama Large Millimeter Array." --remarks of Dr. Rita Colwell, Director, NSF, at the Dedication of the Green Bank Telescope, August 25, 2000.

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Agenda

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ASAC -- Wootten

Please read the Final Report in postscript, visit it in HTML .

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Site - Radford, Butler

Bryan and Simon are working on memos on a time-synchronized comparison of the transparency and interferometer phase measurements between Chajnantor and Pampa La Bola.

Guillermo provided a copy of a study of 52 year trends at Chajnantor (MSWord).

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Report - Wootten

Time for another monthly report. Submission please! The first draft is here.

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Configurations

Steven Heddle reported:

14th September 2000 The first batch of results for the A array images CLEANed to 10,000 iterations have been posted. To aid the organisation of this page, and also reflecting the fact that the CLEAN results are hosted on another site, a single link to a new index page for the CLEAN results is provided below. The old CLEAN results are left here for the time being. The CLEAN parameters used are those of our best consensus, and will be posted soon. The B, C and E arrays are taxing me as to the registration of the convolved downsampled model and the deconvolved subimage for differencing purposes. However the scripts have basically been written, so once this is sorted out the results should follow pronto.

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Action Items 1 Aug2000

DECISION: Configurations--where are we? Next phone meeting plans...ACA/THzA?

DECISION: Implementation of 183 GHz WVR?

DECISION: Are the specs for a nutating secondary correct?

DECISION: What is the total power specification on the ALMA?

DECISION: What is the effect of 1/f noise in the HEMT amplifiers of SIS receivers upon our ability to combine total power and interferometric images into a faithful representation of the sky?

Year 2000

January	February	March	April
May	June	July	August
September	October	November	December

May, 1-2	Site Development Discussions	Garching, Germany
May 15-17	Test Interferometer Planning	Tucson, Arizona

Jun, 12-16	2nd IRAM Millimeter Interferometry Summer School	IRAM Grenoble, France
June 19-20	Vertex Antenna PDR	Duisburg, Germany
Jun, 20-27	7th Synthesis Imaging Summer School	Socorro, USA
June 21-22	EIE Antenna PDR	Venice, Italy

October 13

ACC Meeting

Paris, France

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Travel

AW -> Socorro 20-25 May 2000 ------