----------------------------------------------------------------------------------------

ALMA Science Advisory Committee

Teleconference

19 January 2001

Draft Minutes

Participants: R. Bachiller, L. Bronfman, R. Brown, P. Cox, R. Crutcher,
D. Emerson, M. Gurwell, M. Ishiguru, H. Matsuo, K. Menten, N. Nakai, 
M. Rafal, J. Richer, 
P. Shaver, M. Tsuboi, E. van Dishoeck, M. Walmsley, W. Welch, C. Wilson, 
A. Wootten, M. Yun


1. Minutes and Matters Arising.

The minutes of the last teleconference were accepted. Efforts will be
made to speed up the review and posting process. On polarization, R.
Crutcher said that the issue had been discussed in a conference call,
but that the scientific polarization specifications cannot be easily
translated into engineering specifications, or conflict with other
design specifications or requirements so that it did not
seem useful to have a separate section for the Project Book.
As before, the passband calibration scheme would be advantageous
if implemented. D. Emerson mentioned the possibility of a beacon located
on a mountain in the Chajnantor area. K. Menten asked whether there
could be an implementation of the Hamaker scheme, but R. Crutcher said
there were practical problems (since the telecon, Tan has invited Hamaker
to address the ASAC on this). J. Welch asked about the European
proposal. P. Shaver said that it had been completed; the science case
should be available to ASAC members, and he would check on the availability
of copies of the entire document.


2. Feb. 23-24 Face-to-Face ASAC Meeting in Florence

The agenda for this meeting was discussed, and the following was
proposed:

*ACA design + simulations
Speakers: Guilloteau, Wootten, Baars

*toward a three-way partnership; prioritization of enhancements
Speakers: Brown

*phase II management structure, process for implementation, operations and science operations concept plans
Speakers: Rafal and Kurz

*configurations, site issues
Speakers: Guilloteau, Wootten, Yun, Sakamoto, Bronfman

*receivers: report from Tucson PDR + production planning
Speakers: Wild

*WVRs
Speakers: Wilson, Richer

*(future) correlator
Speakers: Chikada, Baudry, Wootten

*software
Speaker: Lucas

*status report on antennae
Speaker: Baars, Rafal

*outreach
Speaker: Wootten, Shaver

*polarization
Speaker: Crutcher

*ASTE and AST status
Speakers: Kawabe, Menten

*Calibration
Speakers: Guilloteau, Welch


3. Connection of Working Group Chairs to ASAC

It was agreed that close connections to the heads of all working groups
are important, and that they should be invited to participate in
specific ASAC meetings as appropriate. The SSR chair, R. Lucas, will be
invited to the Florence meeting.


4. Project Book

D. Emerson announced that, from about the end of January, the Project
Book will be officially under change control. Any significant changes
will then have to be reviewed by a “change committee”.


5. Budget Constraints in the 3-Way Project

R. Brown summarized the 15-16 Jan. ALG meeting, in particular the Budget
Boundary Constraints of the 3-Way ALMA Project (document sent to ASAC
members on 18 Jan.). He stressed that the estimates presented are
preliminary, but that it will be required for the ASAC to (re)set
priorities. These will then provide the baseline for the tri-partitite
project. This issue will be fully discussed at the Florence face-to-face
meeting.


6. AOB

R. Crutcher asked about final decisions on the ACA. M. Yun said that a
memo is being prepared, and S. Guilloteau will have simulation results
ready a week before the Florence meeting.


7.  Next Teleconference

It was agreed that the next ASAC teleconference will take place after
the Florence face-to-face meeting. The date and time will be decided at
the Florence meeting.