18 June 2003 Present : MJI, STH, JRL, PSB, DWE Agenda ------ 1. Actions from previous minutes 2. Comments on recent WFAU minutes 3. Review of last week's WFCAM meeting 4. ESO and WFCAM and FITS headers 5. Work package progress with regard to upcoming quarterly review 6. AOB Minutes ------- 1. Actions from previous minutes MJI There is no need to carry out further tests on Rice compression since JRL the data will be integer*4 for which the compression is lossless. STH has contacted AA and decided that there is no need to use the one service night available. Much of the photometry data needed is available in XL spreadsheets. STH will contact Sandy Leggett. <<<< JRL has compared dark sky flats with the twilight ones. This has highlighted a few problems with UFTI, however, the main result was to establish that there is a window of a 3-5 minutes available at twilight to take flats with WFCAM. MJI and AA have discussed the survey manager post. This will now probably be a whole post based at JAC. AA is applying for funding for this post which will probably be filled with a current staff member. DWE has not obtained the data for the different seeing/offsets test of Ian Bond's software. Ongoing action. <<<< DWE contacted Ian Bond regarding MEFs and his software. He has modified the software which can now work on an extension of a MEF and generate a SEF output. It is intended that the output will eventually be also MEF. JRL has generated simulated data by placing WFCAM headers onto CIRSI data. It was requested that this data be made generally available, with a link to it from the diary page. <<<< STH action to investigate SDSS (and other) software for generating synthetic data is ongoing. <<<< DWE action to use WFC data to simulate undersampled offset data for interpolation and difference imaging tests is also ongoing. MJI said that he would provide the WFC data products server web address so that DWE could browse for suitable data. <<<< STH prepared the pre-meeting documents for the Edinburgh WFCAM meeting MJI JRL All had read the pre-meeting documents for the Edinburgh meeting (honest!) PSB investigated what quality control measurements will be required during the in-lab commissioning for VISTA. "Following Steven Beard's (SMB) original suggestion to test the VISTA IR Camera to data-flow software interface in Q2 2005, JPE & CASU believe the pipeline would be usable in time, providing the data-dictionary requirements of the test data are met. Malcolm Stewart (JMS) comments that he is wary of making the Camera project dependent of the Pipeline project, and would use interactive tools. He doubts a star projection' system would be available, but there will be a TCS simulator so full FITS headers can be provided. SMB suggests that towards the end of the Assembly Integration Tests (AIT) we could avoid duplication of effort by using pipeline tools to measure image quality and throughput. There will be a device which simulates the telescope beam. JPE endorses the idea of exercising the data flow system with real data. In conclusion, the camera and VDFS projects are decoupled beyond AIT/4, but software and data should flow both ways to possible mutual benefit." MJI said that the APM building refurbishment would probably take place in January 2004 PSB has not rack-mounted JRL's SUN equipment since he has to wait for JRL to get a replacement desktop. Future equipment needs were discussed. <<<< STH and JRL need new new desktops. STH requested a tape drive (DDS4). STH also needs to get his disc storage sorted out. PSB said that he would cost all of this. <<<< 2. Comments on recent WFAU minutes There were none. 3. Review of last week's WFCAM meeting The notes written by DWE were checked to see if there were any actions on us: STH to check up on nightly extinction variations (actioned above) and to continue work to set up standard fields <<<< MJI to continue checks on astrometric distortion since there is currently a factor of 3 ambiguity in the supplied model distortions <<<< MJI to do more accurate Monte Carlo simulation of detection limits/ completeness for WFCAM-like data (dependent on model simulation investigation actioned above) <<<< It was suggested that these notes be released on the web after comparing notes with Andy Vick. <<<< 4. ESO and WFCAM and FITS headers A brief discussion on the pros and cons of adopting ESO-style FITS headers for WFCAM ensued. MJI will summarise the discussion and write a reply to AL and JPE summarising our views. <<<< 5. Work package progress with regard to upcoming quarterly review The quarterly review of progress on WP deliverables will take place at the management meeting on July 7th. From the point of view of presentation to external panels it is better to have finished as many tasks, or sub-tasks as possible, rather than to have half-finished everything. Although the VISTA software PDR has been shifted to December 2003 it is still crucial to finish the outline drafts of the 3 documents by the end of this quarter. These are pre-requisite discussion documents needed prior to any visit to ESO to discuss these issues. Progressing this item would benefit from a round-table meeting of JPE, WJS and PSB together with MJI/JRL. It was noted that there is also a software status review at RAL in September for which a full draft of the PDR documents will be required. <<<< Detailed discussion of remaining work package quarterly deliverables followed and various tasks highlighted that can (and should) be finished by the end of the quarter. <<<< 6. AOB Timing of meetings viz-a-viz before or after coffee or after lunch ? As almost as many opinions as attendees. As a trial the next meeting will start at 10am Wednesday 2nd July. It was suggested that we place the Power Point presentations, that the group gave at the Edinburgh WFCAM meeting, on the web (accessed from the diary web page). <<<< Continuing actions ------------------ STH contact Sandy Leggett to obtain photometric monitoring data DWE test Ian Bond's software on data with different seeing and offsets JRL place simulated data (WFCAM headers on CIRSI data) on web via a link from the diary page STH investigate SDSS (and other) software for generating synthetic data DWE use WFC data to simulate undersampled offset data for interpolation and difference imaging tests MJI provide web address to DWE in order to obtain above data PSB cost desktop requirements etc. of JRL and STH PSB Organise rack mounting of JRL's SUN equipment for move to APM building MJI New actions ------------ STH finish setting up photometric standard fields MJI finish astrometric distortion tests DWE release notes of Edinburgh meeting on the web MJI reply to Andy Lawrence summarizing our views on ESO FITS headers PSB organize meeting in Cambridge to sort out outline draft documents MJI place Power Point presentations from Edinburgh meeting on the web STH JRL ALL progress and finish off as many of Q2 work packages and deliverables as possible by the date of the next meeting