ALMA SSR Committee Phone Meeting 2001-12-04

Connection Details

• Call date: 2001-12-04 (Tuesday)
• Call time: 15:00 UT
• USA Toll Free Number: 888-831-4304
• USA Toll Number: +1-712-271-0575
• Passcode: ALMA
• Leader: Robert Lucas
• Duration: 1 hr

Minutes

1. Status of off-line analysis document review (Steve Myers).
   The document is officially handled to Brian, Gianni in order to start the review process.
   
   
2. Current pipeline requirements draft (Frederic Gueth, Peter Shilke).
   A new draft was presented by Frederic and Peter. Every one is asked to look at it in detail, in particular for omissions, in the next two weeks. Then it will be included in a new version of Memo 11 by R. Lucas.
   
   
3. Actualisation of data rates (S. Scott, S. Myers, M. Momose).
   As proposed at the previous meeting, Steve, Steve and Munetake have drafted a technical note on a proposition of increasing the data rates. The well-accepted science drivers on which ASAC has based the proposition of a second generation correlator also call for an increase of the peak rate by 20% and a doubling of the average data rate. While it is well understood that the resulting increased cost is probably not affordable in the current financial situation, is is agreed that the new numbers should be included in a new version of the Science requirements (note that this discussion concerns only the computers and software limitations, not that of the baseline correlator itself which is capable of simultaneous very short dump times and large channel numbers ...). The note itself will be posted in the web together with the previous version .
   
   
4. Proposed rewriting of selected requirements after High Level Analysis Review (R. Lucas).
   There is an agreement on all proposed changes.
   However the proposition to keep the explicit reference to the materialisation of observing procedures into text-editable scripts is controversial (see the messages by Steve Scott and myself, as well as the opinion of Boyd Waters). It is clear that this option cannot be left to the software implementation process it affects how ALMA will be able to handle smooth development and testing of new observing modes. Please express your own opinion on the mailing list on this point.
   
   
5. Archiving Requirements/Use Cases (Ken Tatematsu, K. Nakanishi).
   A new draft was presented by Ken. Every one is asked to look at it in again, in the next two weeks. Then it will be included in a new version of Memo 11 by R. Lucas.
   
   
6. Proposed date of next phone meeting Tuesday Jan 15th 15:00 UT
   
   
7. Location and date of next face-to-face meeting:
   It is agreed that the next face-to-face meeting should take place in Europe in February. The European members will propose a location and possible dates.

Action List

1. Brian to start the review process for the off-line analysis document.
   
   
2. All to send final comments to both Pipeline and Archive requirement drafts, in the next two weeks.
   
   
3. All to express their opinions on the observing scripts issue.
   
   
4. R. Lucas to prepare an actualised version of memo 11 including the two new chapters and the proposed requirement changes.