From awootten at NRAO.EDU Tue Aug 1 11:57:55 2000 From: awootten at NRAO.EDU (Al Wootten) Date: Tue, 1 Aug 2000 11:57:55 -0400 (EDT) Subject: [asac] ASAC Meeting Monday 7th August at 14:15 UT Message-ID: <200008011557.LAA28726@polaris.cv.nrao.edu> Folks: The next telecon is scheduled for Monday 7th August at 14:15 UT. (= 16:15 CEST = 10:15 EDT = 07:15 PDT = 23:15 Japan) Please send topics for discussion to me. I will email you instructions for phone access to the telecon. I'll be in Manchester then, but I will set up the phone in numbers, etc. I should imagine that the primary agenda item will be to set the agenda for the September face-to-face meeting. We had a beginning at that last meeting. Details for that meeting are at: http://www.cv.nrao.edu/~awootten/mmaimcal/asac/sepmtng.txt Make your reservations now!! HOTEL RESERVATIONS MUST BE MADE BY AUGUST 8, 2000 IN ORDER TO RECEIVE THE DISCOUNTED RATE! Peter wrote in the minutes (which I append): 3. Agenda for Berkeley ASAC A number of topics were mentioned: the ACA, receiver/calibration issues, correlator plans, configuration issues. C. Wilson mentioned other items from the list of "future issues" from the Leiden meeting: Phase 2, LO systems, software, spectrum management, site, outreach. Which we need to whip into some sort of shape. Your suggestions are welcome. Clear skies, Al +--------------------------------------------------------+ | Alwyn Wootten (http://www.cv.nrao.edu/~awootten/) | | Project Scientist, Atacama Large Millimeter Array/US | | Astronomer, National Radio Astronomy Observatory | | 520 Edgemont Road, Charlottesville, VA 22903-2475, USA | | (804)-296-0329 voice Help us build The ALMA| | (804)-296-0278 FAX {> {> {> {> | +----------------------------------^-----^-----^-----^---+ ALMA Science Advisory Committee Teleconference, 10 July 2000 Draft Minutes Participants: Brown, Cox, Crutcher, Emerson, Guilloteau, Ishiguru, Menten, Shaver, van Dishoeck, Welch, Wild, Wilson, Wootten, Yun The draft agenda was accepted as proposed. 1. Japanese Participation R. Brown summarized the recent ALG meeting. Japan is presently carrying out a costing exercise, in preparation for a review on 28 July, and anticipates a decision on funding about a year from now. The ACC had recently stressed that the US-Europe project must not be considered incomplete, that Japan will be enhancing the scientific capabilities of an existing project. Thus, the Japanese proposals: a) to preserve the sensitivity per partner - this implies 78 x 12m antennas b) to restore all receiver bands to the project (actually eight science bands and one WVR band, omitting band 2 (as band 3 should go to 86 GHz) and band 5 (because low priority)) c) to provide short-spacing capabilities with a small-antenna array d) to become involved in the future correlator development. There was discussion about the small-antenna array (ACA). Operation would be much harder if it is on a separate higher site - the ALG prefers a location close to ALMA. K. Menten commented that there is as yet no official ASAC report on this. Various groups are working on the ACA issues: Guilloteau, Viallefond, Yun, Morita, Welch, Holdaway. S. Guilloteau will put a document on the web soon, and have a full report in October. This will be an important issue at the Berkeley ASAC. The idea of having 8 bands instead of 10 was questioned, in terms of spectral line coverage and redshift coverage. This will also be discussed at the Berkelely meeting. 2. ALMA Receiver Development W. Wild explained the current limitation of only 3 receivers on at any one time. The limiting factor is heat load at the 4K stage. Other receivers would be available within 15 minutes (maximum) - this time could be much less, a few minutes, but 15 minutes was adopted for the present as a conservative upper limit. Various groups are working on aspects of this issue. W. Wild also stressed the need to decide soon on the calibration scheme, as it drives the optics design. S. Guilloteau commented that, on the other side, it was important to know (first) what was possible technically. K. Menten asked the Project Scientists and Receiver Group to iterate on this, and the issue will be discussed at Berkeley. On the question of the calibration requirement, A. Wootten and J. Welch said that the goal is 1% absolute calibration above the atmosphere. W. Wild replied that the Receiver Group needs a clear number for the receiver calibration alone. J. Welch and S. Guilloteau said that work is presently being done on calibration schemes at Berkeley and IRAM, and results will be presented at the Berkeley ASAC. 3. Agenda for Berkeley ASAC A number of topics were mentioned: the ACA, receiver issues, correlator plans, configuration issues. C. Wilson mentioned other items from the list of "future issues" from the Leiden meeting: Phase 2, LO systems, software, spectrum management, site, outreach. 4. AOB A. Wootten mentioned the good result from the Istanbul meeting on protecting mm wavelengths. He also mentioned that A. Benz is organizing a meeting at the Manchester IAU GA on solar and pulsar science. K. Menten said that he and the Project Scientists will send around an e-mail on plans for the Test Interferometer. 5. Next Teleconference The next telecon is scheduled for Monday 7th August at 14:15 UT. From awootten at NRAO.EDU Thu Aug 3 14:18:32 2000 From: awootten at NRAO.EDU (Al Wootten) Date: Thu, 3 Aug 2000 14:18:32 -0400 (EDT) Subject: [asac] IAU ALMA events to my knowledge. Message-ID: <200008031818.OAA28952@polaris.cv.nrao.edu> ASAC meeting Monday For those of you attending the IAU here are the ALMA related events which have come to my attention. If you know of others, please apprise us. Agenda and phone numbers for Monday will follow this message when they are ready. I have had no input on this. Continuing: ALMA display (Rebecca Johnson) with pamphlets Bryan Butler's poster presentation at IAU 202 7 - 11 Aug 9 Aug IAU 201 SZE imaging with ALMA - S. Myers "Observatory Reports" - August 10, Manchester Order and allocation time (in minutes) may be changed. Some other speakers are expected. NRAO/VLA/VLBA (15) = Craig Walker EVN/JIVE (10) = R. Schilizzi Australia Obs (10) = R. Ekers (to be confirmed) GMRT (10) = Ananthakrishnan ALMA (10) = Al Wootten MERLIN/VLBI (10) = P. Diamond NRAO/Green Bank (10) = P. Jewell SMA (10) = J. Moran Sub-mm Telescope Obs. (10) = T.L. Wilson Sardinia Radio telescope(10) = Padrielli/Feretti Suffa Telescope (10) = Hojaev Brasil Observatories (10) = Perre Kaufmann A. Benz has 5 minutes at the Division II (Sun an Heliosphere) business meeting on Thusday, August 10th, 12:45-13:55, Roscoe Building, Room 3.2. "I will present ALMA briefly and mention its solar capabilities. Then I will call for a meeting of the people interested right after the business meeting to discuss solar/stellar ALMA specifications and observing modes. This will start around 14:00. There seems to be little on stellar astronomy except S203, where I will announce the discussion and invite stellar astronomers to the discussion on ALMA specifications. The stellar specification do not seem to me very demanding, except for outrigger antennas which seem to out of discussion. I will talk to the early-type star people at Jodrell during my visit there and see whether we could arrange a meeting. Pulsar observations are more critical. I have written a letter to the president of J. Moran for help, but not yet received an answer. I hope to have some meeting in the second week of the GA." Dave Wilner says: " Kawabe-san will speak on ALMA at Joint Discussion 9 on Cold Gas and Dust at High Redshift at the IAU General Assembly, on August 14. Anyway, if we have any new ALMA pr materials, we might pass them along (kawabe at nro.nao.ac.jp). Also, there will some time for open discussion at 5 pm, so feel free to make your own brief contribution, if you'd like." Members of Commission 40 will have received an email from Jim Moran with details on the frequency allocations achieved by Gergely, Whiteoak and others at the WRC. Clear skies, Al +--------------------------------------------------------+ | Alwyn Wootten (http://www.cv.nrao.edu/~awootten/) | | Project Scientist, Atacama Large Millimeter Array/US | | Astronomer, National Radio Astronomy Observatory | | 520 Edgemont Road, Charlottesville, VA 22903-2475, USA | | (804)-296-0329 voice Help us build The ALMA| | (804)-296-0278 FAX {> {> {> {> | +----------------------------------^-----^-----^-----^---+ From awootten at NRAO.EDU Fri Aug 4 10:11:34 2000 From: awootten at NRAO.EDU (Al Wootten) Date: Fri, 4 Aug 2000 10:11:34 -0400 (EDT) Subject: [asac] ASAC Meeting Phone number Message-ID: <200008041411.KAA23546@polaris.cv.nrao.edu> Conference Date: AUG-07-2000 (Monday) Conference Time: 10:15 AM EASTERN TIME Conference Duration: 1 hr Service Level: STANDARD Call Type: MEET ME/DIALOUT Number of Participants: Total=25 Dialout=1 Entry Method: Tone In Time: 14:15 UT (= 16:15 CEST = 10:15 EDT = 07:15 PDT = 23:15 Japan) Conference Leader: Mr Al Wootten Phone: 1-804-296-0329 Leader Day of Call Phone #: 44 161 237 9955 Conference Contact: Ms Carolyn White Phone: 1-804-296-0224 USA Toll Free Number: 888-790-1725 Non-USA Number: 312-470-7050 Passcode: ALMA Conference Leader: Mr Al Wootten Confirmation: 7880270 From awootten at NRAO.EDU Fri Aug 4 10:50:04 2000 From: awootten at NRAO.EDU (Al Wootten) Date: Fri, 4 Aug 2000 10:50:04 -0400 (EDT) Subject: [asac] Meeting Monday Message-ID: <200008041450.KAA24752@polaris.cv.nrao.edu> For those who may be at the IAU on Monday, there are two options: 1) You can phone into the meeting from the phone booth where you have changed into your ASAC costume (scarlet A on the chest?:'), or 2) Gary Fuller has graciously offered the use of his office and a speakerphone. Gary is located at: Department of Physics | e-mail: G.Fuller at umist.ac.uk UMIST | phone: +44-(0)161-200-3653 P.O. Box 88 | fax: +44-(0)161-200-4303 Manchester M60 1QD | http://saturn.phy.umist.ac.uk:8000/~gaf/gaf.html UK And remember that the UK is on summertime, so that 1415UT=3:15 pm local time! Time: 14:15 UT (= 16:15 CEST = 10:15 EDT = 07:15 PDT = 23:15 Japan) Conference Leader: Mr Al Wootten USA Number: 888-790-1725 Non-USA Number: 312-470-7050 Passcode: ALMA Clear skies, Al +--------------------------------------------------------+ | Alwyn Wootten (http://www.cv.nrao.edu/~awootten/) | | Project Scientist, Atacama Large Millimeter Array/US | | Astronomer, National Radio Astronomy Observatory | | 520 Edgemont Road, Charlottesville, VA 22903-2475, USA | | (804)-296-0329 voice Help us build The ALMA| | (804)-296-0278 FAX {> {> {> {> | +----------------------------------^-----^-----^-----^---+ From awootten at NRAO.EDU Fri Aug 4 17:06:15 2000 From: awootten at NRAO.EDU (Al Wootten) Date: Fri, 4 Aug 2000 17:06:15 -0400 (EDT) Subject: [asac] Agenda 7 August Message-ID: <200008042106.RAA05174@polaris.cv.nrao.edu> Folks I have made a suggested agenda for Monday's meeting at: http://www.cv.nrao.edu/~awootten/mmaimcal/asac/aug2000.html I took suggestions made last meeting for the September agenda and stuffed them into the framework of the March agenda to provide a basis for discussion (without a whole lot of thought, but hopefully that will come...) http://www.cv.nrao.edu/~awootten/mmaimcal/asac/asacberkeleyagenda.html Remember, reserve your room in Berkeley before next Tuesday for the good rate! Clear skies, Al +--------------------------------------------------------+ | Alwyn Wootten (http://www.cv.nrao.edu/~awootten/) | | Project Scientist, Atacama Large Millimeter Array/US | | Astronomer, National Radio Astronomy Observatory | | 520 Edgemont Road, Charlottesville, VA 22903-2475, USA | | (804)-296-0329 voice Help us build The ALMA| | (804)-296-0278 FAX {> {> {> {> | +----------------------------------^-----^-----^-----^---+ From mgurwell at cfa.harvard.edu Sun Aug 6 20:48:22 2000 From: mgurwell at cfa.harvard.edu (Mark A. Gurwell) Date: Sun, 6 Aug 2000 20:48:22 -0400 (EDT) Subject: [asac] Some thoughts for the ASAC Berkeley Mtg Message-ID: <200008070048.UAA15094@yoda.harvard.edu> Hi Al, Since I won't be able to join in the teleconference tomorrow, I thought I'd send you a quick note regarding some of the issues to be discussed. First, and most simply, I note that I was in attendance at the last telecon, though not listed in the participants. I think the notes for the last meeting are fine otherwise. Beyond the News section in the agenda for this telecon, there doesn't seem to be much for discussion beyond the agenda for the September Berkeley meeting. I took a quick look at the agenda, and thought I might make a few suggestions: I think that the number one priority should be to assess the Japanese involvement, and all that entails. Frankly this issue alone could take the whole meeting, just because the possibilities are semi-infinite (this is good overall of course!). On this note, I don't know if the ACA falls under the enhancements allowed by Japan contribution or if the ACA falls under a different heading...I guess that really depends on whether or not the ACA will have THz capability. In any event, all of this must be hashed over as much as possible. Also, a particular interest to me is passband calibration...is this going to fall under the 'Calibration Scheme' or has it been relegated to purely a correlator issue? My concern here is that this calibration, which could be crucial to many projects (like, say, my own :-) ), may kind of slip between the cracks... I think we need to revisit the receiver band choices again, as it seems from the last telecon that there was some dissent regarding dropping one of the bands (loss of a z-range for CO, I think?). Also not specifically mentioned, but of interest, is news on the WVR, both from the Rx group (how will it fit in? etc) as well as from Wilson and Richer, on any recent news regarding either the 183 or the IR instruments. Finally, a quick report on the site (development preparation as well as on further information on the meterology and stability) would be interesting, I think. Well, that's it for the moment. Sorry I won't be able to join in tomorrow, but I look forward to seeing everyone in September! Best wishes, Mark -------------------------------------------------------------------- Mark A. Gurwell Harvard-Smithsonian Center for Astrophysics voice: (617) 495-7292 Mail Stop 42 fax: (617) 495-7345 60 Garden Street email: mgurwell at cfa.harvard.edu Cambridge, MA 02138 http://cfa-www.harvard.edu/~mgurwell -------------------------------------------------------------------- From tetsuo at ioa.s.u-tokyo.ac.jp Mon Aug 7 06:45:41 2000 From: tetsuo at ioa.s.u-tokyo.ac.jp (Tetsuo Hasegawa) Date: Mon, 7 Aug 2000 19:45:41 +0900 Subject: [asac] July ASAC minutes Message-ID: Hi Al, At the July telecon, not only Ishiguro-san, but also Nakai-san and myself joined from Mitaka. Please add our names to the participant list. Thank you. Tetsuo _______________________________________________________________ ***IoA has moved to a new building: ***Please note NEW e-mail address, Phone, FAX, Zip-code, & URL Tetsuo HASEGAWA tetsuo at ioa.s.u-tokyo.ac.jp Associate Professor, Institute of Astronomy, University of Tokyo 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan Phone +81-422-34-5032 / FAX +81-422-34-5041 New URL http://www.ioa.s.u-tokyo.ac.jp/~tetsuo/ _______________________________________________________________ From awootten at NRAO.EDU Fri Aug 18 13:44:34 2000 From: awootten at NRAO.EDU (Al Wootten) Date: Fri, 18 Aug 2000 13:44:34 -0400 (EDT) Subject: [asac] Minutes for 7 August Message-ID: <200008181744.NAA24777@polaris.cv.nrao.edu> Peter Shaver was attending an IAU meeting and unable to take minutes. I have attempted to organize my notes into minutes. I include a link to a revised agenda for Berkeley, and to information on the Lascar eruption near Chajnantor on 20 July. http://www.cv.nrao.edu/~awootten/mmaimcal/asac/augmin.html Clear skies, Al +--------------------------------------------------------+ | Alwyn Wootten (http://www.cv.nrao.edu/~awootten/) | | Project Scientist, Atacama Large Millimeter Array/US | | Astronomer, National Radio Astronomy Observatory | | 520 Edgemont Road, Charlottesville, VA 22903-2475, USA | | (804)-296-0329 voice Help us build The ALMA| | (804)-296-0278 FAX {> {> {> {> | +----------------------------------^-----^-----^-----^---+ From awootten at NRAO.EDU Tue Aug 29 15:35:16 2000 From: awootten at NRAO.EDU (Al Wootten) Date: Tue, 29 Aug 2000 15:35:16 -0400 (EDT) Subject: [asac] ASAC Meeting Agenda Message-ID: <200008291935.PAA09549@polaris.cv.nrao.edu> Apparently somehow an old version of the agenda has made its way into some folks' browsers. I append a text version of what the current version on my disk is (at http://www.cv.nrao.edu/~awootten/mmaimcal/asac/asacberkeleyagenda.html) Agenda for ALMA Scientific Advisory Committee Berkeley 9-10 September 2000 Assume 30 min per event, except as noted Presentations must leave 5 min for questions Start 0900 September 9, coffee available 09:00-09:10 Welcome and establish plan for writing report (10 min) (Karl Menten, Jack Welch) 09:10-09:50 Interim Report on Definition of Phase 2, Decision Process, Schedule, Estimated Cost (40 min)(Brown and/or Kurz) 09:50-10:20 Report from ALMA Liaison Group (ALG) on meetings in Leiden (Mar00) and Charlottesville (Jun00), including Compact Array. (Bob Brown or Dick Kurz and Ryohei Kawabe) *The ACA (Morita) *ACA Antenna Size (Welch) 10:20-10:35 Coffee 10:35-11:30 Discussion* (Evans and Cox, Leaders) 11:30-12:30 Correlator Plans--US, European, Japanese (Wootten, Baudry?, Okamura) 12:30-1:20 Lunch, coffee 1:20-2:00 Discussion* (Bachiller and Scoville, Leaders) 2:00-2:30 Calibration schemes (Reports by Guilloteau, Welch, Mangum) 2:30-3:00 Passband Calibration (Emerson) 3:00-3:45 Discussion*(Richer and Wilson, Leaders) 3:45-4:15 Report on Configurations (Min Yun) 4:15-4:30 Break, coffee 4:30-4:45 Report on Spectrum Protection, Site (Wootten) 4:45-5:00 Polarization Specifications (Draft by D'Addario?, Myers?) 5:00-5:30 Discussion*(Booth, Crutcher, Menten and Yun, Leaders) 7:00-9:30: Dinner Start 0900 September 10, coffee available 9:00-9:30 Receivers (In particular, specifications, revisit priorities and other questions including optics (beam squint specifications, mirrors, etc.); Report on JRDG Meeting 7-8 September) (Telephone callin W.Wild) 9:30-10:00 Report on Test Interferometer and on Antennas (Emerson) 10:00-10:30 Break, coffee 10:30-11:00 Report on Water Vapor Radiometry (Woody, Richer, Wilson?) 11:00-12:00 Discussion*(Blake, van Dishoeck, Walmsley and Welch, Leaders) 12:00-1:00 Lunch, coffee, walk through botanical gardens 1:00-2:00 Writing assignments and subgroup meetings* 2:00-4:00 Meeting of the whole, reports, election of new Vice-Chairperson* 4:00 Adjourn at 4 PM Possible Participants Baars, Jaap Bachiller, Rafael Benz, Arnold Blake, Geoffrey Booth, Roy Bronfman, Leonardo Brown, Robert Carlstrom, John Cox, Pierre Crutcher, Richard Dishoeck van, Ewine Emerson, Darrel Evans, Neal Fukui, Yasuo Guilloteau, Stephane Gurwell, Mark Kawabe, Ryohei Kurz, Richard Mangum, Jeff Menten, Karl Nakai, Naomasa Richer, John Scoville, Nick Shaver, Peter Walmsley, Malcolm Welch, Jack Wild, Wolfgang Wilson, Christine Woody, David Wootten, Al Yamamoto, Satoshi Yun, Min S. A partial list of things to read before the meeting TBD SUGGESTIONS FOR RESTAURANTS IN BERKELEY: Clear skies, Al +--------------------------------------------------------+ | Alwyn Wootten (http://www.cv.nrao.edu/~awootten/) | | Project Scientist, Atacama Large Millimeter Array/US | | Astronomer, National Radio Astronomy Observatory | | 520 Edgemont Road, Charlottesville, VA 22903-2475, USA | | (804)-296-0329 voice Help us build The ALMA| | (804)-296-0278 FAX {> {> {> {> | +----------------------------------^-----^-----^-----^---+