Alignment - PowerPoint PPT Presentation

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Alignment

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Gamma-ray Large Area Space Telescope. ISOC/SVAC Instrument Analysis ... Will also have an effect on the ... See Yvonne's and Eric's talks. This is the ... – PowerPoint PPT presentation

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Title: Alignment


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Alignment
  • Intra-tower alignment
  • Improves things
  • See Johann's talk!
  • Will also have an effect on the inter-tower
    alignment.
  • Would like to start using alignment in recon
    before TVAC
  • Need feedback asap!
  • TVAC starts early July
  • Would also be nice to see if the shake-test moved
    towers around ....

4
Testing_at_NRL
  • Lot of activity going on at NRL
  • Test scripts and reports being written by each
    subsystem
  • Lots of data to look at after each test!
  • And signing off on .....
  • See Yvonne's and Eric's talks.
  • This is the time to catch problems
  • And we catch them by looking at the data!
  • Need volunteers!

5
Time
  • Lots of new time variables in Flight Software
    runs
  • Time tones
  • See 'SVAC variable' talk from last meeting about
    time stamps using the new variables (Catch the
    typo on p9!)
  • You should only use the context variables for
    getting event time stamps!
  • Some old variables are no longer relevant
  • Only valid for LATTE runs will eventually be
    removed.
  • And some variables changed meaning .....
  • Still thinking about this one.
  • Please look in the SVAC ntuple description
  • Several Do not use for FSW runs!
  • This is the time to start thinking about time
  • Learn how to use time information for LAT data
  • Eventually we will make a calibrated time stamp,
    but the more people start thinking about this,
    the better!
  • A shining example of what I mean
  • Dave

6
Data Analysis
  • We're in the middle of EMI tests at the Navy
    Research Lab
  • Limited set of people looking at lots of data all
    the time
  • Soon TVAC
  • We need to spread the burden
  • What worries me
  • Subsystem people are looking at the data in
    specific ways
  • Relevant for their subsystem
  • Need people to just 'look at the data'
  • Catch what we don't think of

NRL
7
The Meaning Of It All
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