Minutes for the Terameeting of July 27th

Calibration of CFHTLS T07 (Yuliana)
 W3 L99 data only: the dispersions are slightly better, but there are still offsets. Yuliana will double check the offset values.
 Yuliana will check that the FSCALE values are the same everywhere on all images (they should be, as only photometric data is included)
 Still don't understand why the results are not as good with the T06+L99 which is what Mathias S. found. Could this be a measurement / colour equation problem?
 Next step is to try the same thing with an L99 detection image on the T06 data.
 In parallel, Yuliana will look at the illumination correction using all L99 data as function of position in MegaCam.

Ultra-VISTA (Henry, Patrick, Yannick, Yuliana)

 Henry presents stastics on the images. All the images have been graded by Yannick.
 The recent developments in Youpi done by Mathias M. are indeed very useful for Ultra-VISTA data
 Do we use 0.8 / images ?
 Fynbo Need to discover what we need do with the Fynbo data [update: Yannick has found out. We need the 1.0 data]. Patrick and Yannick are still confused on the what we should do now. Need specific meeting with Henry, Patrick, Yannick.
 Three questions: timescale for data product delivery / image selection
 VIKING data: need to see what VIKING data is available for the W1. Patrick will take over.

NGVS / Amadine (Patrick)

 NGVS stacks were re-done by Patrick (pilot survey and other stacks)
 DR7 is on the NGVS and will be used for the astrometry.

PI data processing (Yannick)

 Lehnert / Tom Shanks / Valls Gabaud (DVG):
 Tom shanks and Lehnert in progress.
 Kerton WIRCam data : need to check how much work needs to be done. Yuliana and Patrick will look at them and we will decide after.
 For DVG we need to see if the data is actually available for download or not.

Hardware (Fred)

 fcix6 still unstable and crashes if you transfer even a small file. The origin of these crashes has been narrowed down but it seems be related to the network card.
 yannick suggests we start a bid for fcix8 and identify possible credit lines (ANR Roser/Yannick + ANR Henry/JP + Terapix reliqua)
 releasix2 is missing; and we need to reconstruct the machine so we can re-construct the plots and images which were there before, for instance for the tables [update: Yannick has found some of the necessary files]
 yannix2 almost ready; just need to move the mails; rename yannix as yannix0 and yannic2 as yannix, then can move the computer downstairs.

 EUCLID announcement of opportunity has come out, deadline is October 29th.
 LSST mail: quite happy with QualityFITS as a first step then QualityFITS-ng as a second step, but need to move toward something new; suggests we include machine-learning techniques. Yannick has ordered a bunch of books which have arrived.

QualitfitsNG (Patrick,Fred,Mathias)

 Identified libraries which will be necessary for QualityFITS-ng.
 Need to identify clearly what the inputs to each of the libraries will be.

 Next meeting: