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Proposed resolution: Keep the time units as seconds. I need to look into TIERRELA and TIERABSO still.
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\[anders\] Minor detail: The start and end time of the run (ultimately deciding the livetime) may not be the time of the first and last events. The reason is that the instrument is alive for a short time before the first event and also after the last event. This is not captured in the livetime counters. I may have a solution to this using 'sweep' events which are issued just before and after the first and last physics triggers. The advantage is that there is a fixed and calculable time between the sweep event and when the instrument is alive/dead (independently of when the first trigger arrives). |
16. Name of tables
(Foschini) Presently there is only one keyword to identify the template of EVENTS and GTI data structure. To take into account that templates can change (particularly during the first months after the launch), it is better to add a keyword EXTVERS or something similar with the version number of the used template. Moreover, the data structure of LAT and GBM can require different keywords, so I propose to give at the EXTNAME more complicate names to take into account the different uses: for example, for the LAT events there can be EXTNAME='GLAST-LAT_EVT' and the corresponding GTI can be EXTNAME='GLAST-LAT-GTI'.
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