Date: Thu, 26 Feb 1998 18:22:51 -0800 (PST) Message-Id: <199802270222.SAA12696@colman.ipac.caltech.edu> To: 2mass Subject: IPAC 2MASS WG Mtg #144 Minutes Cc: chas, firstname.lastname@example.org, stiening, bgreen Content-Length: 2948 X-Lines: 78 Status: RO IPAC 2MASS Working Group Meeting #144 Minutes 2/24/98 Attendees: R. Beck, T. Chester, R. Cutri, D. Engler, T. Evans, J. Fowler, L. Fullmer, B. Green, T. Jarrett, D. Kirkpatrick, G. Kopan, J. Mazzarella, H. McCallon, B. Nelson, B. Wheaton, S. Wheelock, J. White AGENDA 1.) Introductions 2.) Southern Observatory Status 3.) 2MAPPS 2.0 Test Status 4.) Science Team Meeting DISCUSSION 1.) Introductions The meeting was attended by B. Green, the new IPAC Manager, who introduced himself to the working group members. Each member then provided Bill with a self-introduction and a brief task description. Some discussion followed that ranged over various topics, including 2MASS experience that might prove beneficial to SIRTF. 2.) Southern Observatory Status R. Cutri reported that the camera for the southern observatory has been received in Santiago and is working its way through customs. A complete set of spare electronics is now also on its way. A test data set has been received at IPAC from M. Skrutskie intended to prepare for rapid-turnaround processing in support of setup operations at the southern observatory. Since the FTP link from the observatory is very slow, some very effective compression scheme will be needed for fast data transfer. The test data are scans compressed with a special-purpose technique that eliminates most information not needed for the setup support processing. The decompression algorithm has been applied, and the scans have been processed through POSFRM. The same scans have been processed normally, so that the correct results are known, and the processing of the compressed data yielded the correct results to within sufficient accuracy for the setup support. As soon as the hardware can be assembled, the setup processing will begin, and some support staff will be needed at IPAC. This is all expected to begin sometime next week. 3.) 2MAPPS 2.0 Test Status The testing of 2MAPPS 2.0 has been continuing, and many problems have been resolved, but some remain. Photometric dispersion of certain calibration scans has been degraded by one of the recent changes to the system, and the origin of this is being sought. The change to the photometric zero points via the pipe.cal file is suspected, and this clue will be followed up by B. Wheaton. [Note added in proof - This problem was associated with the introduction of the new instrumental magnitude zero points, and has been rectified.] 4.) Science Team Meeting The science team meeting at which the 2MAPPS 2.0 readiness will be examined is scheduled for next Monday, March 2. It is expected that some modifications may be requested at the meeting, or at least some parameter settings may need to be changed, so that it is not clear how soon after the meeting 2MAPPS 2.0 will be put into full production mode.