Science Tools Working Group
Met last week (J Chiang, D Band, T Burnett, J Ballet, S Digel, D Sanchez (LLR), W Focke, M Hirayama, C Shrader). We did not meet this week and might not meet next week either.
The current version of the Science Tools remains v9r3p1.
Data products: We discussed some needed updates to the definition of the contents of FT1 and a potential update to the contents of FT2. For the former, the proposals are to make GPS_OUT a column, to implement a not-yet-actually-real pipeline version column, and to sort out what to do about CONVERSION_TYPE and EVENT_CLASS keywords - for Pass 5 we are currently using CTBCLASSLEVEL and not EVENT_CLASS at all, for example. For FT2, the question is whether to include quaternions in addition to the RA_SCX, RA_SCZ, etc. orientation information. The pages are open for comments.
Databases and related utilities
No news. As you have noticed, the GSSC server has LEO 55-day data. Tony has got the data in the Astro Data Server as well, although (last I checked), not findable as a link from glast-ground. Both servers are incrementally updating the data as the 'downlinks' arrive. As of Wednesday, the EVENT_CLASS and time selection information in the headers of the files from the Astro Data Server needed some fixing; Jim and Tony are going to work on this, or may have already fixed it by now.
Likelihood analysis
Jim has implemented a more-accurate scheme for making the integrations over the PSFs in binned likelihood analysis - related to calculatign the numbers of expected events when the value of a spectral parameter in a source model changes. In the test cases that he ran, the effect was a reduction in TS at small values of TS by about 20% in the right direction of making unbinned and binned results more consistent. Jean also made some tests with the new integrations using test pattern data. He uncovered a bug that Jim has since fixed.
GRB tools
No news.
Pulsar tools
Masa reports that he and James have started work on gtptest, which will run a number of periodicity tests (evaluate a number of periodicity statistics) at once.
Observation simulation
No news. A splinter meeting on orbit and attitude simulation was held during the collaboration meeting. Giuseppe Romeo (author of gttakosim) and Robin Corbet were able to attend. Some follow-up questions related to LEO studies are pending with Julie.
User interface and infrastructure (& utilities)
No news
Source Catalog
Met this week. Most of the meeting was devoted to a discussion - really, a discussion - about naming of sources and to technical details of the contents (columns) of the LAT point-source catalog. Jean had some analysis results to discuss but I think that may have got postponed until the next meeting.
Science Tools Working Group
Did not meet this week and won't meet next week either. It was a quiet week in Science Tools.
The current version of the Science Tools remains v9r3p1.
The beta test of the Science Tools by the Glast Users Committee is now looking likely to be in January rather than in December. The date is not firm yet, but presumably the kickoff would be aligned with a meeting of the GUC at Goddard.
Data products: No new news.
Databases and related utilities
No news.
Likelihood analysis
Jim has fixed an initialization problem in gtfindsrc so that it works with models that have only point sources.
GRB tools
No news.
Pulsar tools
Masa and James report that they are working on updating the documentation for the User Workbook. The next development work related to pulsar tools is likely to be extending gtpphase and the ephemeris database to handle more timing models for binary pulsars - there's no universally used set of parameters used to specify these for binary systems.
Observation simulation
No direct news. A splinter meeting on orbit and attitude simulation is planned (and almost announced) for next Tuesday at the collaboration meeting. Robin Corbet and Giuseppe Romeo (author of gttakosim) of the GSSC will attend.
User interface and infrastructure (& utilities)
James reports that he "consulted with Eric Winter and Bryan Irby (of the HEASARC software team) about how to continue efforts to port the Science Tools into the HEASARC's build environment."
Source Catalog
Did not meet this week.