GRB analysis
The tools in this category are gtbin, gtbindef, gtrspgen, and gtburstfit. Descriptions of these tools and links to any documentation are in the science tools section of the User Workbook.
Please edit this page to include results, issues, advice, etc., or links to these.
25 September 2005
Francesco Longo reported last week that the times (like TSTART and TSTOP) in the GBM files of simulated bursts are not consistent with the times for the LAT bursts in the Checkout 3 data. This is apparently because the LAT event files and the GBM files have different values for MJDREF; the burst times are the same in the two sets of files, just measured with respect to different references; Johann Cohen-Tanugi tracked this down, and also pointed out that gtbin can be used with the GBM data by not specifying a spacecraft attitude file. The use of different MJDREFs was unintentional, but apparently some or all of the science tools do not check the value, and so the bursts appear to have different times for the two instruments. (Digel)