From crb@ing.iac.es
Date: Tue, 29 Oct 1996 09:37:43 GMT
From: crb@ing.iac.es
To: swu@ing.iac.es, JHT@ing.iac.es, naw@ing.iac.es, rgmr@ing.iac.es,
    mwa@ing.iac.es, dspray@ing.iac.es, juerg@ing.iac.es, pctr@ing.iac.es,
    gfm@ing.iac.es, pmf@ing.iac.es, cwmj@ing.iac.es, aco@ing.iac.es,
    pjr@lpss1.ing.iac.es, mcm@iac.es, fprada@iac.es, mar@iac.es,
    wlm@ast.cam.ac.uk
Subject: Harlaftis WHT feedback

From:	SMTP%"ehh@ing.iac.es" 29-OCT-1996 07:24:03.89
To:	Chris Benn , Rene Rutten 
CC:	
Subj:	feedback report W/96B/7

Mavi's organization excellent. Technical support excellent. Previous buffer crashes were cured for our run. Thorough attention was also given to have our data in a back-up tape. Operator competent. In addition, he shows improvement over past years. Our project was fully accomplished. Data of excellent quality (7,800 frames).

We had 2 (unexplained) alice crashes and lost 1 hour in total of 3 nights (2.8% of 36 hours of observing). On 2 more occasions filters were stuck (but with minimum loss of time). AUTOFITS was found to slow down time series.

Larger disk is needed for data. It fills in less than 3 clear nights at the moment. This will be very risky for the observers' data especially if WHIRCAM is on schedule for more than 5-6 days. In 3 nights, we managed to create only 1 d-tape for the 1 night using autofits. Thereafter, we depend on the software group to have the c-tape with the data safely sent back to our institute (7,800 frames obtained!).

A quick method to measure IR seeing on an image would be welcomed (copying a frame to a SPARC/IRAF and using imexam, for example). A quick-reduction script would be extremely useful to produce light curves for quick evaluation of data in order to optimize time series. The above assumes that such a script will operate on a SPARC. Even a simple process such as deleting files slows down time series on the VAX by loading BDS and VAX buffers up to 100%.

Emilios Harlaftis, St. Andrews, W/96B/7