This page contains information concerning tests of the absolute times associated with GLAST LAT events.
Motivation: Important satellite missions, amongst which are USA, Chandra, and CGRO, have had problems with the absolute times assigned to events. The 10 uS timing precision required for the GLAST LAT is essential for good pulsar science. In addition to extensive testing of the different links in the timing chain, we have proposed an end-to-end test which will be the main focus of this page.
Background material:
Links to science requirement document ; to measurements made by J.G. Thayer ; to measurements made by G. Godfrey ;
Links to proposal made in Arizona ; to presentations made in SVAC IA meeting, by Smith, Focke, and Borgland.
Link to Bordeaux DAQ note that was prepared for the Beamtest workshop.
Current projects:
Status of VME GPS in Bordeaux.
Shopping list of things to prepare before going to NRL ; and then to Arizona.
And so forth and so on.